Publications

Book Chapters

1.      R. Trebino, “Frequency-Resolved Optical Gating: The Measurement of Ultrashort Laser Pulses”, Kluwer (contributing author, CH13).

2.      G. Goodno, “Ultrafast solid state lasers”, McGraw-Hill, (contributing author, CH12).

Articles published in or submitted to refereed Journals:

1.                  D.N. Vitek, D.E. Adams, A. Johnson, P.S. Tsai, S. Backus, C.G. Durfee, D. Kleinfeld, J.A. Squier, “Temporally focused femtosecond laser pulses for low numerical aperture micromachining through optically transparent materials.” Optics Express 18, Aug 2010.

2.                  M. Chen, M. Gerrity, S. Backus, T. Popmintchev, X. Zhou, P. Arpin, X. Zhang, H. Kapteyn, M. Murnane, “Spatially coherent, phase matched, high-order harmonic EUV beams at 50 kHz”, Optics Express 17, Oct 2009.

3.                  L. Miaja-Avila, J. Yin, S. Backus, G. Saathoff, M. Aeschlimann, M. Murnane, H. Kapteyn, “Ultrafast studies of electronic processes at surfaces using the laser-assisted photoelectric effect with long-wavelength dressing light”, Physical Review A 79, Mar 2009.

4.                  R. K. Murawski, Y. V. Rostovtsev, Z.-E. Sariyanni, V. A. Sautenkov, S. Backus, D. Raymondson, H. C. Kapteyn, M. M. Murnane, and M. O. Scully, "Resonant UV pump-probe spectroscopy of dipicolinic acid via impulsive excitation," Physical Review A 77, 2008.

5.                  E. Gagnon, I. Thomann, A. Paul, A. L. Lytle, S. Backus, M. M. Murnane, H. C. Kapteyn, and A. S. Sandhu, “Long-term carrier-envelope phase stability from a grating-based, chirped pulse amplifier,” Opt. Lett. 31, 1866-1868 (2006).

6.                  D. M. Gaudiosi, E. Gagnon, A. L. Lytle, J. L. Fiore, E. A. Gibson, S. Kane, J. Squier, M. M. Murnane, H. C. Kapteyn, R. Jimenez, and S. Backus, “Multi-kilohertz repetition rate Ti:sapphire amplifier based on down-chirped pulse amplification,” Opt. Express 14, 9277-9283 (2006).

7.                  L. Misoguti, I. P. Christov, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Nonlinear wave-mixing processes in the extreme ultraviolet,” Phys. Rev. A 72, 063803/1-7 (2005).

8.                  D. Gaudiosi, A. Lytle, P. Kohl, M. Murnane, H. Kapteyn, S. Backus, “11-W average power Ti : sapphire amplifier system using downchirped pulse amplification”, Optics Letters 29, Nov 2004.

9.                  A. R. Libertun, X. Zhang, A. Paul, E. Gagnon, T. Popmintchev, S. Backus, M. M. Murnane, H. C. Kapteyn, and I. P. Christov, “Design of fully spatially coherent extreme-ultraviolet light sources,” Appl. Phys. Lett. 84, 3903-3905 (2004).

10.              E. Gibson, A. Paul, N. Wagner, R. Tobey, S. Backus, I. Christov, M. Murnane, H. Kapteyn, “High-order harmonic generation up to 250 eV from highly ionized argon”, Physical Review Letters 92, Jan 2004.

11.              X. Zhang, A. R. Libertun, A. Paul, E. Gagnon, S. Backus, I. P. Christov, M. M. Murnane, H. C. Kapteyn, R. A. Bartels, Y. Liu, and D. T. Attwood, “Highly coherent light at 13 nm generated by use of quasi-phase-matched high-harmonic generation,” Opt. Lett. 29, 1357-1359 (2004).

12.              A. Paul, R. A. Bartels, R. Tobey, H. Green, S. Weiman, I. P. Christov, M. M. Murnane, H. C. Kapteyn, and S. Backus, “Quasi-phase-matched generation of coherent extreme-ultraviolet light,” Nature 421, 51-54 (2003).

13.              X. F. Wang, N. Saleh, M. Krishnan, H. W. Wang, S. Backus, M. Murnane, H. Kapteyn, D. Umstadter, Q. D. Wang, and B. F. Shen, “Generation of mega-electron-volt electron beams by an ultrafast intense laser pulse,” JOSA B-Opt. Phys. 20, 132-137 (2003).

14.              R. A. Bartels, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Impulsive stimulated Raman scattering of molecular vibrations using nonlinear pulse shaping,” Chem. Phys. Lett. 374, 326-333 (2003).

15.              E. A. Gibson, A. Paul, N. Wagner, R. Tobey, D. Gaudiosi, S. Backus, I. P. Christov, A. Aquila, E. M. Gullikson, D. T. Attwood, M. M. Murnane, and H. C. Kapteyn, “Coherent soft x-ray generation in the water window with quasi-phase matching,” Science 302, 95-98 (2003).

16.              C. G. Durfee, L. Misoguti, S. Backus, H. C. Kapteyn, and M. M. Murnane, “Phase matching in cascaded third-order processes,” JOSA B-Opt. Phys. 19, 822-831 (2002).

17.              S. Christensen, H. C. Kapteyn, M. M. Murnane, and S. Backus, “A simple, high power, compact, intracavity frequency-doubled, Q-switched Nd : Y3Al5O12 laser,” Rev. Sci. Instrum. 73, 1994-1997 (2002).

18.              R. A. Bartels, A. Paul, M. M. Murnane, H. C. Kapteyn, S. Backus, Y. Liu, and D. T. Attwood, “Absolute determination of the wavelength and spectrum of an extreme-ultraviolet beam by a Young's double-slit measurement,” Opt. Lett. 27, 707-709 (2002).

19.              R. A. Bartels, A. Paul, H. Green, H. C. Kapteyn, M. M. Murnane, S. Backus, I. P. Christov, Y. W. Liu, D. Attwood, and C. Jacobsen, “Generation of spatially coherent light at extreme ultraviolet wavelengths,” Science 297, 376-378 (2002).

20.              S. Backus, R. Bartels, S. Thompson, R. Dollinger, H. C. Kapteyn, and M. M. Murnane, “High-efficiency, single-stage 7-kHz high-average-power ultrafast laser system,” Opt. Lett. 26, 465-467 (2001).

21.              R. Bartels, S. Backus, I. Christov, H. Kapteyn, and M. Murnane, “Attosecond time-scale feedback control of coherent X-ray generation,” Chem. Phys. 267, 277-289 (2001).

22.              L. Misoguti, S. Backus, C. G. Durfee, R. Bartels, M. M. Murnane, and H. C. Kapteyn, “Generation of broadband VUV light using third-order cascaded processes,” Phys. Rev. Lett. 8701, 013601/1-4 (2001).

23.              T. C. Weinacht, R. Bartels, S. Backus, P. H. Bucksbaum, B. Pearson, J. M. Geremia, H. Rabitz, H. C. Kapteyn, and M. M. Murnane, “Coherent learning control of vibrational motion in room temperature molecular gases,” Chem. Phys. Lett. 344, 333-338 (2001).

24.              E. Zeek, R. Bartels, M. M. Murnane, H. C. Kapteyn, S. Backus, and G. Vdovin, “Adaptive pulse compression for transform-limited 15-fs high-energy pulse generation,” Opt. Lett. 25, 587-589 (2000).

25.              R. Bartels, S. Backus, E. Zeek, L. Misoguti, G. Vdovin, I. P. Christov, M. M. Murnane, and H. C. Kapteyn, “Shaped-pulse optimization of coherent emission of high-harmonic soft X-rays,” Nature 406, 164-166 (2000).

26.              E. Zeek, K. Maginnis, S. Backus, U. Russek, M. Murnane, G. Mourou, H. Kapteyn, and G. Vdovin, “Pulse compression by use of deformable mirrors,” Opt. Lett. 24, 493-495 (1999).

27.              A. C. Tien, S. Backus, H. Kapteyn, M. Murnane, and G. Mourou, “Short-pulse laser damage in transparent materials as a function of pulse duration,” Phys. Rev. Lett. 82, 3883-3886 (1999).

28.              C. G. Durfee, S. Backus, H. C. Kapteyn, and M. M. Murnane, “Intense 8-fs pulse generation in the deep ultraviolet,” Opt. Lett. 24, 697-699 (1999).

29.              C. G. Durfee, A. Rundquist, S. Backus, Z. Chang, C. Herne, H. C. Kapteyn, and M. M. Murnane, “Guided-wave phase-matching of ultrashort-pulse light,” J. Nonlinear Opt. Phys. & Mater. 8, 211-234 (1999).

30.              C. G. Durfee, A. R. Rundquist, S. Backus, C. Herne, M. M. Murnane, and H. C. Kapteyn, “Phase matching of high-order harmonics in hollow waveguides,” Phys. Rev. Lett. 83, 2187-2190 (1999).

31.              H. Wang, S. Backus, Z. Chang, R. Wagner, K. Kim, X. Wang, D. Umstadter, T. Lei, M. Murnane, and H. Kapteyn, “Generation of 10-W average-power, 40-TW peak-power, 24-fs pulses from a Ti:sapphire amplifier system,” JOSA B-Opt. Phys. 16, 1790-1794 (1999).

32.              J. Peatross, S. Backus, J. Zhou, M. M. Murnane, and H. C. Kapteyn, “Spectral-spatial measurements of fundamental and third-harmonic light of intense 25-fs laser pulses focused in a gas cell,” JOSA B-Opt. Phys. 15, 186-192 (1998).

33.              S. Backus, C. G. Durfee, M. M. Murnane, and H. C. Kapteyn, “High power ultrafast lasers,” Rev. Sci. Instrum. 69, 1207-1223 (1998).

34.              A. Rundquist, C. G. Durfee, Z. H. Chang, C. Herne, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Phase-matched generation of coherent soft X-rays,” Science 280, 1412-1415 (1998).

35.              C. G. Durfee, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Design and implementation of a TW-class high-average power laser system,” IEEE J. Selected Topics Quantum Electron. 4, 395-406 (1998).

36.              S. Backus, C. G. Durfee, G. Mourou, H. C. Kapteyn, and M. M. Murnane, “0.2-TW laser system at 1 kHz,” Opt. Lett. 22, 1256-1258 (1997).

37.              A. Rundquist, C. Durfee, Z. Chang, G. Taft, E. Zeek, S. Backus, M. M. Murnane, H. C. Kapteyn, I. Christov, and V. Stoev, “Ultrafast laser and amplifier sources,” Appl. Phys. B-Lasers and Optics 65, 161-174 (1997).

38.              C. G. Durfee, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Ultrabroadband phase-matched optical parametric generation in the ultraviolet by use of guided waves,” Opt. Lett. 22, 1565-1567 (1997).

39.              S. Backus, J. Peatross, Z. Zeek, A. Rundquist, G. Taft, M. M. Murnane, and H. C. Kapteyn, “6-fs, 1-µ J ultraviolet pulses generated by third-harmonic conversion in air,” Opt. Lett. 21, 665-667 (1996).

40.              S. Backus, J. Peatross, C. P. Huang, M. M. Murnane, and H. C. Kapteyn, “T:sapphire amplifier producing millijoule-level, 21-fs pulses at 1 Khz,” Opt. Lett. 20, 2000-2002 (1995).

41.              S. Backus, M. T. Asaki, C. Shi, H. C. Kapteyn, and M. M. Murnane, “Intracavity frequency-doubling in a Ti:sapphire laser - Generation of 14-fs pulses at 416-nm,” Opt. Lett. 19, 399-401 (1994).

42.              S. Backus, H. C. Kapteyn, M. M. Murnane, D. M. Gold, H. Nathel, and W. White, “Prepulse suppression for high-energy ultrashort pulses using self-induced plasma shuttering from a fluid target,” Opt. Lett. 18, 134-136 (1993).

43.              C. P. Huang, M. T. Asaki, S. Backus, M. M. Murnane, H. C. Kapteyn, and H. Nathel, “17-fs pulses from a self-mode-locked Ti:sapphire laser,” Opt. Lett. 17, 1289-1291 (1992).

Conference Proceedings published in book form

1.     E. A. Gibson, A. Paul, S. Backus, R. Tobey, M. M. Murnane, H. C. Kapteyn, and I. P. Christov, “Quasi-phase matching of high harmonic generation in the “water window” soft x-ray region,” in Ultrafast Phenomena XIV (T. Kobayashi, T. Okada, T. Kobayashi, K. A. Nelson, and S. D. Silvestri, Eds., Springer Series in Chemical Physics, 2005), pp. 192-194.

2.     N. Wagner, E. A. Gibson, S. Backus, M. M. Murnane, H. C. Kapteyn, and I. P. Christov, “Temporal self-compression of intense femtosecond pulses propagating in argon-filled hollow waveguides,” in Ultrafast Phenomena XIV (T. Kobayashi, T. Okada, T. Kobayashi, K. A. Nelson, and S. D. Silvestri, Eds., Springer Series in Chemical Physics, 2005), pp. 40-42.

3.     E. A. Gibson, A. Paul, N. Wagner, S. Backus, M. M. Murnane, H. C. Kapteyn, and I. P. Christov, “High-order harmonic generation from argon ions up to 250 eV,” in Ultrafast Phenomena XIV (T. Kobayashi, T. Okada, T. Kobayashi, K. A. Nelson, and S. D. Silvestri, Eds., Springer Series in Chemical Physics, 2005), pp. 192-194.

4.     R. Tobey, D. Raymondson, E. A. Gibson, D.-F. Lei, A. Paul, S. Backus, M. Siemens, X. Zhang, M. M. Murnane, and H. C. Kapteyn, “Ultrashort-pulse EUV and soft x-ray sources based on high-harmonic generation – principles and applications,” in 26th International Congress on High speed Photography and Photonics (D. L. Paisley, Ed., SPIE Vol. 5580, 2005), pp. 12-17

5.     X. Zhang, D. Raymondson, A. S. Sandhu, S. Backus, M. M. Murnane, H. C. Kapteyn, and A. R. Libertun, “High-resolution imaging system using a tabletop extreme ultraviolet source,” in Proceedings of the SPIE, (vol. 5534, SPIE, Bellingham, WA, 2004)  pp. 47-52.

6.     S. Backus, R. Bartels, S. Thompson, S. Christensen, H. Kapteyn, and M. Murnane, “High average power, 10 kHz, ultrafast laser system,” in Ultrafast Phenomena XIII (R. D. Miller, M. M. Murnane , Eds., Springer Series in Chemical Physics, 2003), pp. 128-130.

7.     R. Bartels, A. Paul, S. Backus, H. Kapteyn, and M. Murnane, “EUV photonics: Quasi phase matching at short wavelength,” in Ultrafast Phenomena XIII (R. D. Miller, M. M. Murnane , Eds., Springer Series in Chemical Physics, 2003), pp. 51-53.

8.     R. Bartels, S. Backus, A. Paul, H. Kapteyn, M. Murnane, Y. Liu, D. Attwood, and C. Jacobsen, “Fully spatially coherent EUV source,” in Ultrafast Phenomena XIII (R. D. Miller, M. M. Murnane , Eds., Springer Series in Chemical Physics, 2003), pp. 66-70.

9.     R. Bartels, S. Backus, A. Paul, H. Kapteyn, M. Murnane, Y. Liu, and D. Attwood, “Determination of the HHG spectrum by measuring the mutual coherence,” in Ultrafast Phenomena XIII (R. D. Miller, M. M. Murnane , Eds., Springer Series in Chemical Physics, 2003), pp.54-56.

10.   E. A. Gibson, T. Weinacht, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Simple in-line EUV pulse characterization,” in X-Ray Lasers 2002: 8th International Conference on X-Ray Lasers (J. J. Rocca , Ed., AIP Conf. Proceedings Vol. 641, 2002), pp. 587-590.

11.   R. A. Bartels, S. Backus, C. Lei, A. Paul, I. P. Christov, M. M. Murnane, and H. C. Kepteyn, “Small-scale coherent EUV light sources from high-harmonic generation,” in X-Ray Lasers 2002: 8th International Conference on X-Ray Lasers (J. J. Rocca , Ed., AIP Conf. Proceedings Vol. 641, 2002), pp. 401-405.

12.   R. A. Bartels, S. Backus, I. P. Christov, H. C. Kapteyn, and M. M. Murnane, “Coherent control of high harmonic generation on attosecond timescales,” Proceedings of the Conference on “Atoms, Molecules, and Quantum Dots in Laser Fields: Fundamental Processes,” Societá Italiana de Fisica Conference Proceedings, Vol. 71 (Bologna, Italy, 2001), p. 159-169.

13.   F. H. Loesel, A.-C. Tien, S. J. Backus, H. C. Kapteyn, M. M. Murnane, R. M. Kurtz, S. I. Sayegh, and T. Juhasz, “Effect of reduction of laser pulse width from 100 ps to 20 fs on the plasma mediated ablation of hard and soft tissue,” in Thermal Therapy, Laser Welding, and Tissue Interaction (S. G. Bown, G. P. Delacretaz, G. Godlewski, G. J. Mueller, R. Pini, H.-D. Reidenbach, R. W. Steiner, L. O. Svaasand, K.-G. Tranberg, Eds., Proceedings of the SPIE Vol. 3565, 1999), p. 116-123.

14.   L. Misoguti, C. G. Durfee, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Generation and measurement of ultrafast tunable VUV light,”  in Ultrafast Phenomena XII (T. Elsaesser, S. Mukamel,  M. M. Murnane and N.F. Scherer, Eds., Springer Series in Chemical Physics, 2001), pp. 112-114.

15.   Randy Bartels, Sterling Backus, Ivan Christov, Lino Misoguti, Gleb Vdovin, Erik Zeek, Margaret M. Murnane, and Henry C. Kapteyn, “Coherent control of XUV radiation,” in Ultrafast Phenomena XII (T. Elsaesser, S. Mukamel,  M. M. Murnane and N.F. Scherer, Eds., Springer Series in Chemical Physics, 2001), pp. 42-44.

16.   S. Backus, C. G. Durfee III, M. M. Murnane, and H. C. Kapteyn, “0.28 TW laser system at 1 kHz, scaleable to 2 TW at 1 kHz,” in Ultrafast Phenomena XI (T. Elsaesser, J. G. Fujimoto, D. A. Wiersma, Eds., Springer Series in Chemical Physics, 1999), pp. 41.

17.   C. G. Durfee III, A. Rundquist, S. Backus, Z. Chang, C. Herne, H. C. Kapteyn, and M. M. Murnane, “Phase-match generation of short-wavelength, ultrashort-pulse light in capillary waveguides,” in Ultrafast Phenomena XI (T. Elsaesser, J. G. Fujimoto, D. A. Wiersma, Eds., Springer Series in Chemical Physics, 1999), p. 373.

18.   C. G. Durfee, S. Backus, M. M. Murnane, and H.C. Kapteyn, “Phase-matched optical parametric conversion of ultrashort pulses in a hollow waveguide,” First International Conference on Superstrong Fields in Plasmas, Varenna, Italy, AIP Proceedings, Vol. 426, (1998), p. 331.

19.   S. Backus, A. Rundquist, Z. Chang, J. Zhou, H. C. Kapteyn, and M. M. Murnane, “High average power TW laser system,” in Proceedings of the OSA Conference on Applications of Highfield and Short Wavelength Sources (L. F. DiMauro, M. M. Murnane, and A. L’Huillier, Eds., Plenum Press, NY, 1998),  p. 17.

20.   S. Backus, C. Durfee, J. Peatross, E. Zeek, K. Read, H. C. Kapteyn, and M. M. Murnane, “16 fs pulse generation and measurement in the ultraviolet and vacuum ultraviolet,” Ultrafast Phenomena X (Springer-Verlag, 1996), p. 79.

21.   J. Peatross, S. Backus, K. Read, C. P. Huang, M. M. Murnane, and H. C. Kapteyn, “Ultrashort millijoule-level amplification in Ti:sapphire at 1 kHz and third harmonic conversion measurements,” Proceedings of the SPIE, Vol. 2701 (SPIE, Bellingham, WA, 1996), p. 62-67.

22.   A. Rundquist, S. Backus, G. Taft, J. Peatross, M. M. Murnane, and H. C. Kapteyn, “Temporal characterization of ultrashort high-power laser pulses,” Proceedings of the SPIE, Vol. 2701 (SPIE, Bellingham, WA, 1996), p. 176-180.

23.   M. T. Asaki, S. Backus, C. Baldwin, M. M. Murnane, and H. C. Kapteyn, “Generation of sub-20 fs 400 nm light using intracavity doubling in Ti:sapphire,” Ultrafast Phenomena IX (Springer-Verlag, 1994), p. 213.

24.   C. P. Huang, M. Asaki, S. Backus, H. Nathel, M. M. Murnane, and H. C. Kapteyn, “17 femtosecond pulses from a modelocked Ti:sapphire laser,” Ultrafast Phenomena VIII, J. L. Martin, A. Migus, G. A. Mourou, and A. Zewail, Eds. (Springer-Verlag, 1993), p. 160.

Research overviews in popular press, and commentaries

1.     D. Muller, S. Backus, K. Read, M. Murnane, and H. Kapteyn, “Cryogenic cooling multiplies output of Ti : sapphire output,” Laser Focus World 41, 65-68 (2005).

2.     R. Bartels, S. Backus. G. Vdovin, I. P. Christov, M. M. Murnane, and H. C. Kapteyn, “Suboptical- cycle coherent control in nonlinear optics,” Optics and Photonics News 11, 23 (2000).

3.     C. G. Durfee, Z. Chang, S. Backus, H. C. Kapteyn, and M. M. Murnane, “Guided-wave frequency conversion: Phase-matching at short-wavelengths,” IEEE LEOS Newsletter, February 1998.

Presentations  (presenter is first author unless otherwise noted)

1.           Contributed talk, Sterling Backus, “High average power ultrafast systems,” DEPS ultrafast, Boulder, CO, Sept. 2009. Presented by Sterling Backus.

2.           Contributed talk, Sterling Backus, Dirk Muller, Margaret Murnane, and Henry Kapteyn, “Carrier-envelope stabilization of high-average power ultrafast laser amplifier systems,” Ultrafast Optics / High Field Short Wavelength Conference, Bishop's Lodge, Santa Fe, NM, Sept. 2007. Presented by Henry Kapteyn.

3.           Invited Presentation, Prof. Henry C. Kapteyn, David Gaudiosi , Emily Gibson, Mike Grisham, Amy Lytle, Ariel Paul, Tenio Popmintchev, Brandon Reagan, Nick Wagner, Xiaoshi Zhang, Randy Bartels, Sterling Backus, Tom Weinacht, Andrea Wuest, Prof. Margaret M. Murnane, Prof. Ivan Christov, Prof. Jorge Rocca, and Prof. Barry Walker, “Coherent x-rays from lasers: applied attosecond science,” Army Research Office Attosecond Optics Workshop, Durham, NC, November 2005. Presented by H. Kapteyn.

4.           Contributed talk, Etienne Gagnon, Arvinder Sandhu, Isabell Thomann, Ariel Paul, Amy L. Lytle, Sterling Backus, Margaret Murnane, and Henry Kapteyn, “Long term carrier-envelope phase coherence in a grating-based chirped pulse amplifier system,” 89th Annual Meeting of the Optical Society of America, Frontiers in Optics/Laser Science XXI (OSA/ILS), Tucson, AZ, October 2005. Presented by E. Gagnon.

5.           Seminar, Henry C. Kapteyn and Margaret M. Murnane, “High-power femtosecond Ti:sapphire lasers using cryogenic cooling,” Northrup-Grumman Space Technology Center, El Segundo, CA, October 2005. Presented by H. Kapteyn.

6.           Invited, H. C. Kapteyn, R. A. Bartels, S. J. Backus, M. M. Murnane, I. P. Christov, and H. Rabitz, “Ultrafast pulse shaping for control and automated learning in quantum systems,” ATTO-network symposium: “Attosecond generation, metrology and applications,” Ringberg Castle, Bavaria, Germany, April 2004.

7.           Contributed, A. R. Libertun, X. Zhang, A. Paul, D. Raymondson, E. Gershgoren, E. Gagnon, S. Backus, M. M. Murnane, H. C. Kapteyn, A. A. Bartels, Y. Liu, and D. T. Attwood, “High-resolution EUV imaging using high harmonic generation,” Conference on Lasers and Electro-optics / Quantum Electronics and Laser Science Conference (CLEO/QELS), San Francisco, CA, May 2004.

8.           Contributed, X. Zhang, A. R. Libertun, A. Paul, E. Gagnon, S. J. Backus, H. C. Kapteyn, M. M. Murnane, R. Bartels, Y. Liu, and D. Attwood, “Fully coherent light at 13 nm using quasi phase matching in gas-filled modulated waveguides,” Conference on Lasers and Electro-optics / Quantum Electronics and Laser Science Conference (CLEO/QELS), San Francisco, CA, May 2004.

9.           Contributed, P. Kohl, A. Lytle, H. Kapteyn, M. Murnane, and S. Backus, “High average power 10 W Ti:sapphire laser amplifier system using downchirped pulse amplification,” Conference on Lasers and Electro-optics / Quantum Electronics and Laser Science Conference (CLEO/QELS), San Francisco, CA, May 2004.

10.       Poster, E. A. Gibson, A. Paul, N. Wagner, S. Backus, M. M. Murnane, H. C. Kapteyn, and I. P. Christov, “High-order harmonic generation from argon ions up to 250 eV,” 14th International Conference on Ultrafast Phenomena, Niigata, Japan, July 2004.

11.       Poster, E. A. Gibson, N. Wagner, S. Backus, M. M. Murnane, H. C. Kapteyn, and I. P. Christov, “Temporal self-compression of intense femtosecond pulses propagating in argon-filled hollow waveguides,” 14th International Conference on Ultrafast Phenomena, Niigata, Japan, July 2004.

12.       Invited, E. A. Gibson, A. Paul, S. Backus, R. Tobey, M. M. Murnane, H. C. Kapteyn, and I. P. Christov, “Quasi-phase matching of high harmonic generation in the ‘water window’ soft x-ray region,” 14th International Conference on Ultrafast Phenomena, Niigata, Japan, July 2004.

13.       Contributed, D. Raymondson, A. R. Libertun, X. Zhang, S. Backus, M. M. Murnane, and H. C. Kapteyn, “High-resolution imaging system using a tabletop EUV source,” SPIE Annual Meeting, Symposium #5534: Fourth Generation X-Ray Sources and Optics, Denver, CO, August 2004.

14.       Contributed, A. Paul, E. Gibson, S. Backus, R. Tobey, M. M. Murnane, H. C. Kapteyn, and I. Christov, “Quasi-phase matching of high harmonic generation in the water window at 100% ionization levels,” OSA Topical Conference on Nonlinear Optics: Materials, Fundamentals and Applications, Waikoloa, HI, August 2004.

15.       Contributed, N. Wagner, E. Gibson, S. Backus, M. M. Murnane, H. C. Kapteyn, and I. P. Christov, “Temporal self-compression of intense femtosecond pulses propagating in argon-filled hollow waveguides,” OSA Topical Conference on Nonlinear Optics: Materials, Fundamentals and Applications, Waikoloa, HI, August 2004.

16.       Contributed, S. Backus, “High average power ultrafast lasers and applications,” Ultrashort Pulse Laser Materials Interaction Workshop, Directed Energy Professional Society, Boulder, CO, September 25-26, 2003.

17.       S. Backus, “High average power, >10 kHz, ultrafast laser systems,” 13th International Conference on Ultrafast Phenomena, Vancouver, Canada, May 2002.

18.       S. Backus, “High average power, >10 kHz, ultrafast laser systems,” Conference on Laser and Electro-optics (CLEO), Long Beach, CA, May 2002.

19.       Invited, S. Backus, “Phase matching techniques in the UV - EUV,” IEEE/LEOS Summer Topical Meeting on Ultraviolet and Blue Lasers and their Applications, Copper Mountain, CO, July 2001.

20.       S. Backus, “High-efficiency single-stage, 7 kHz, high average power ultrafast laser system,” Conference on Lasers and Electro-Optics (CLEO/QELS 2001), Baltimore, MD, May 2001.

21.       S. Backus, “Novel single-atom and quasi phase-matching techniques in the XUV,” APS Division of Atomic, Molecular, and Optical Physics Meeting (DAMOP 2001), London, Ontario, Canada, May 2001.

22.       S. Backus, “Millijoule, continuously tunable ultrafast laser system for XUV generation, from 1 to 10 kHz,” OSA Conference on Advanced Solid State Lasers, Seattle, WA, January 2001.

23.       Invited, S. Backus, “Extreme nonlinear optics: Phase-matching techniques in the UV and XUV,” IEEE Lasers and Electro-Optics Society (LEOS) Annual Meeting, November 1999.

24.       Invited, S. Backus, “UV and XUV pulse generation and measurement,” Ultrafast Optics 1999, Ascona, Switzerland, July 1999.

25.       Invited, S. Backus, “Ultrafast lasers and laser-based coherent x-ray sources,” 17th Advanced Beam Dynamics Workshop on Future Light Sources, Argonne, IL, April 1999.

26.       Poster, S. Backus, “High average-power terawatt lasers,” XIth International Conference on Ultrafast Phenomena, Garmish-Partenkirchen, Germany, July 1998.

27.       S. Backus, “0.27 terawatt, sub-17 fs laser system at 1 kHz,” Conference on Lasers and Electro-Optics, San Francisco, CA, May 1998.

28.       S. Backus, “0.2 TW kilohertz laser system,” CLEO '97, Baltimore, MD, May 1997.

29.       S. Backus, “16 fs pulse generation and measurement in the ultraviolet and vacuum ultraviolet,” International Quantum Electronics Conference, IQEC, Sydney, Australia, 1996.

30.       S. Backus, “Sub-20 fs pulse generation in the ultraviolet,” Conference on Lasers and Electro-optics, CLEO '96, Anaheim, CA, May 1996.

31.       S. Backus, “Ti:sapphire amplifier producing millijoule-level 21 fs pulses,” SPIE Annual Symposium OE'LASE 96, San Jose, CA, January 1996. 

32.       Postdeadline, S. Backus, “16 femtosecond, 1 µJ pulses generated by third-harmonic conversion in air,” Optical Society of America Annual Meeting, Portland, OR, October 1995.

33.       S. Backus, “High repetition rate amplification of 20 fs optical pulses at the millijoule level,” Optical Society of America Annual Meeting, Portland, OR, October 1995.

34.       Postdeadline, H. C. Kapteyn, C.-P. Huang, M. Asaki, S. Backus, H. Nathel, and M. M. Murnane, “17 femtosecond pulses from a modelocked Ti:sapphire laser,” Eighth International Conference on Ultrafast Phenomena, Antibes, France, June 1992.

35.       H. C. Kapteyn, C.-P. Huang, M. Asaki, S. Backus, H. Nathel, and M. M. Murnane, “Short-pulse optimization of a modelocked Ti:sapphire laser,” Conference on Lasers and Electrooptics (CLEO), Anaheim, CA, May 1992.

Newsbriefs highlighting work

1.     “Opening the x-ray water window,” Briefs Section p. 10, The Industrial Physicist, February/March 2004.

2.     Other articles in 2004 in Physics Today, Biophotonics News, OE Magazine, OE Magazine, R & D Magazine, Optics and Photonics News, etc.

3.     “Ions generate 5-nm X-rays,” Photonics Spectra, Spring 2004

4.     “Ions generate 5-nm X-rays,” Laser Focus World, Spring 2004.

5.     “Extreme ultraviolet from argon,” http://www.aip.org/enews/physnews/2004/split/670-1.html

6.     “Extreme ultraviolet from argon,” Physical Review Focus 30 January 2004, http://focus.aps.org/, David Ehrenstein and Don Monroe, American Physical Society.

7.     NSF Division of Engineering Brochure (2004).

8.     “A new approach to working with light,” Laser Focus World, November 2001.

9.     Research News, Materials Today, p. 10, Oxford, UK, September 2001.

10.   “X-rays light up chemical reactions,” PhysicsWeb, July 2001.

        http://physicsweb.org/article/news/5/7/7

11.   “Shooting an x-ray movie,” Physical Review Focus, July 2001.

        http://focus.aps.org/v8/st1/html

12.   “Single-stage system boasts high power,” Eye on Technology in OE Magazine, June 2001.

13.   “Coherent control of soft-x-rays,” Optics News in 2000, Optics & Photonics News, December 2000.

14.   “Pulse-shaping yields efficient x-ray generation,” Photonics Spectra, Tech. World Briefs, November 2000.

15.   “Pulse shaping improves efficiency of soft x-ray harmonic generation,” by R. Fitzgerald, Physics Today, 53, 24 (2000).

16.   “Physicists progress toward x-ray laser,” Inside R&D Alert (John Wiley & Sons)

        August 2000.

17.   “Phase-matched generation of coherent x-rays,” Optics News in 1998, Optics & Photonics News, December 1998.

18.   “A coherent soft-x-ray source,” Physics News in 1998, APS News, March 1999.

19.   “Table-top lasers crash through water window,” Physics World, p. 26, January 1998.

20.   “High harmonics could revolutionize optical science,” Photonics Spectra, p. 88, January 1998.

21.   “Guided-wave frequency conversion: Phase-matching at short-wavelengths,” invited paper, IEEE LEOS Newsletter, February 1998.

22.       “X-ray vision from a laser,” Science, May 1998.

23.   “Fiber gives x-ray generation a boost,” PhysicsWeb, Institute of Physics, May 1998.

24.   “Phase-matching in capillary waveguides,” Optics & Photonics News, July 1998.

25.   “Engineers unveil tabletop x-rays,” Photonics Spectra, July 1998.

26.   “Physics update: Coherent soft-x-ray source,” Physics Today, August 1998.

27.   “Transmuting light into x-rays,” by D. Kestenbaum, Science 280, 1348 (1998).

28.   "Like a laser, only better," Science Magazine On-Line, October 1997.

29.   "Ultrashort light pulses: Pushing the limits,” Physics News in 1996 (American Physical Society, College Park, MD, 1997).

30.   "Direct measurement of the spectral phase of femtosecond pulses," Optics and Photonics News, April 1995.

31.   "Doubled Ti:sapphire laser provides 14 fs blue pulses," Laser Focus World, May 1994.

32.   "Intracavity frequency doubling in Ti:sapphire," Optics and Photonics News, March 1994.

33.   "Generation of 21fs, millijoule-energy pulses using Ti:sapphire," Optics and Photonics News, February 1994.

34.   "Fastest laser pulses yet,” New Scientist, November 1992.

35.   "17 femtosecond pulses from a self-modelocked Ti:sapphire laser," Optics and Photonics News, December 1992.

36.   "Faster and faster,” Laser and Optronics,  November 1992.

37.   "Modelocked Ti:sapphire laser produces 11-fs pulses,” Laser Focus World, November 1992.

38.   "17 femtosecond pulses from a self-modelocked Ti:sapphire laser," Optics and Photonics News, October 1992.

39.   "Ti:sapphire laser emits 17-fs uncompressed pulses,” Laser Focus World, July 1992.

Grants

1.           Department of Energy (SC0002024), Phase II SBIR, $946,116, 2010, PI, Cyogenically cooled high average power picosecond Ytterbium Lasers

2.           Department of Energy (SC0002024), Phase I SBIR, $99,000, 2009, PI, Cyogenically cooled high average power picosecond Ytterbium Lasers

3.           Department of Energy (SC0001559), Phase II STTR, $750,000, 2010, PI, Development of a fiber based source of high-average-power ultrafast pulses at 2.0μm

4.           Department of Energy (SC0001559), Phase I STTR, $750,000, 2009, PI, Development of a fiber based source of high-average-power ultrafast pulses at 2.0μm

5.           Department of Energy (DE-FG02-07ER84841 SUP), Phase II SBIR, $152,000, 2010, PI, Development of New Mid-Infrared Ultrafast Laser Sources for Compact Coherent X-ray Sources

6.           Department of Energy (DE-FG02-07ER84841), Phase II SBIR, $848,366, 2008, PI, Development of New Mid-Infrared Ultrafast Laser Sources for Compact Coherent X-ray Sources

7.           Department of Energy (DE-FG02-07ER84841), Phase I SBIR, $100,000, 2007, SP, Development of New Mid-Infrared Ultrafast Laser Sources for Compact Coherent X-ray Sources

8.           Department of Energy (DE-FG02-07ER84469), Phase II SBIR, $690,000, 2007, PI, Laser Systems Development for the International Linear Collider (ILC) Photoinjector

9.           Department of Energy (DE-FG02-07ER84469), Phase I SBIR, $100,000, 2006, SP, Laser Systems Development for the International Linear Collider (ILC) Photoinjector

10.       Department of Defense, Air Force (FA9550-10-C-0017), Phase II STTR, $748,359, 2009, PI, Highly Parallel, High Speed Femtosecond Micromachining of Microfluidic Devices

11.       Department of Defense, Air Force (FA9550-09-C-0049), Phase I STTR, $99,945, 2009, PI, Highly Parallel, High Speed Femtosecond Micromachining of Microfluidic Devices

12.       Department of Defense, Air Force (FA8650-10-C-2102), Phase II SBIR, $750,000, 2010, PI, Ultrafast machining of cooling holes in turbine fan blades

13.       Department of Defense, Air Force (FA8650-09-M-2968), Phase I SBIR, $99,945, 2009, PI, Ultrafast machining of cooling holes in turbine fan blades

14.       Department of Defense, Navy (N00014-10-M-0240), Phase I STTR, $99,800, 2010, SP, High Efficiency Gain Media for Eye-Safer 1.55 micron Ultrafast Fiber Amplifiers

15.       National Science Foundation (1013324), Phase I SBIR, $149,222, 2010, PI, Development of a commercial 2D IR spectrometer for characterization of chemical systems

16.       National Science Foundation (0839349), Phase I SBIR, $99,518, 2008, PI, EUV Source for Semiconductor Metrology

17.       National Science Foundation (0349601), Phase II SBIR, $500,000, 2004, PI, A Simple and Practical Solid-State 157nm and 193nm Coherent Light Source for Applications in Lithography Development

18.       National Science Foundation (0214766), Phase I SBIR, $99,583, 2002, PI, A simple and practical solid-state 157 nm coherent light source for applications in lithography development