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8 March 2021 Micrometric Kerr transient grating for in-situ ultrashort probe diagnostic
Chen Xie, Remi Meyer, Luc Froehly, Remo Giust, François Courvoisier
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Proceedings Volume 11676, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXI; 116760Z (2021) https://doi.org/10.1117/12.2578788
Event: SPIE LASE, 2021, Online Only
Abstract
Ultrafast pump-probe imaging requires both an accurate synchronization of probe pulses with the pump and that the probe pulses are free from spatio-temporal distortions. However, characterizing weak probes inside transparent solids reveals to be particularly difficult. We report a new in-situ diagnostic for ultrashort probes using a micrometric-sized Kerr-based transient grating induced in the sample by a shaped pump pulse. Our configuration allows us to synchronize pump and probe pulses in-situ, to measure the ultrashort probe pulse duration, and to remove pulse front tilt of the weak probe. Our approach is valid for any probe wavelength and polarization.
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Chen Xie, Remi Meyer, Luc Froehly, Remo Giust, and François Courvoisier "Micrometric Kerr transient grating for in-situ ultrashort probe diagnostic", Proc. SPIE 11676, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXI, 116760Z (8 March 2021); https://doi.org/10.1117/12.2578788
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KEYWORDS
Diagnostics
Ultrafast imaging
Dispersion
Optical components
Polarization
Sapphire
Signal to noise ratio
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