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Research Topics

 


Plasma-Enhanced UV Generation

Vibrational Coherence Modulated THG Spectroscopy




Enhancement of up to 300x in third harmonic generation conversion efficiency for ultrafst laser pulses in gases is demonstrated. The enhancements are obtained by generating spatially-localized plasma. more...




We examine a pump-probe method measuring surface vibrational coherences. more...



Transient Birefringence in Molecular Gases

Imaging Microscopy




We experimentally investigate transient rotational aligment in molecular gases and have developed theoretical models to understand these dynamics. more...




Third-harmonic generation and other contrast mechanisms are used to capture microscope images. more...



Amplitude and Phase Pulse Shaping

Polarization-Shaped Pulses




An extremely high spatial resolution allowed us to shape both the amplitude and phase of an ultrashort laser pulse in a single spatial light modulator (SLM). more...




We use a novel ultrafast pulse shaper to generate polarization-shaped pulses and have developed a self-referenced technique with which to measure these pulses. more...



Infrared Frequency Mixing

Coherent Control of Molecular Motion




Spectral shaping in long fibers is the starting point for new experiments in the mid-infrared region. more...




Femtosecond pulse shaping allows us to control the vibrational and rotational motion of molecules. more...



Cross-Beam Spectrometer




Using a split mirror in an all-reflective design, we built a spectrometer to cover extremely broad spectral ranges. more...