Abstract
High resolution optical pulse shaping capabilities exist for visible through near-infrared (NIR) wavelengths[1, 2]. Extensions of high-power pulse shaping to the mid-infrared (MIR) and ultraviolet (UV) regions would have immediate applications in coherent control, spectroscopy and imaging. However, direct phase and amplitude pulse shaping in these regimes is difficult. Liquid crystal modulators absorb in the UV and MIR, and acousto-optic materials such as quartz (for UV) and TeO2 and GaP (for mid-IR), though transparent, have very low diffraction efficiency. Here we present several newly developed methods for indirect control of femtosecond pulses that expand tunability. We also discuss applications to detection of optical polarization for tissue imaging.
© 2002 Optical Society of America
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