@inproceedings{6357fe4083c843309cee2ceff80cf6d2,
title = "Midwave infrared ultrashort pulse laser frequency conversion in single crystal, polycrystalline, and amorphous optical materials",
abstract = "We investigate the nonlinear optical properties of transparent optical materials using ultrashort midwave infrared laser pulses between 3 and 4 microns. Random quasi-phase matching in polycrystalline materials generates multiple frequency harmonics of both odd and even orders throughout the transmission window of the target. We also investigate single crystal and amorphous materials and demonstrate a range of frequency conversion and pulse broadening. Simulations using a nonlinear polarization model enhanced with ionization and experimentally measured n2 values provide good qualitative agreement with experimental data.",
keywords = "Filamentation, High harmonic generation, UPPE, Ultrashort pulse lasers",
author = "Michael Tripepi and Michael Hastings and Aaron Schweinsberg and Laura Vanderhoef and Christopher Wolfe and Trenton Ensley and Miroslav Kolesik and Jerome Moloney and Enam Chowdhury and Anthony Valenzuela",
note = "Funding Information: The authors would like to acknowledge support from SURVICE (S17-095008/DOTC-17-01-INIT0086); Air Force Office of Scientific Research (AFOSR) (FA9550-16-1-0069); AFOSR multidisciplinary research program of the university research initiative (MURI) (FA9550-16-1-0013); AFOSR (FA9550-16-1-0121). The authors would also like to thank Carl Liebig and Jamie Gengler from the US Air Force Research Lab. Funding Information: The authors would like to acknowledge support from SURVICE (S17-095008/DOTC-17-01-INIT0086); Air Force Office of Scientiffc Research (AFOSR) (FA9550-16-1-0069); AFOSR multidisciplinary research program of the university research initiative (MURI) (FA9550-16-1-0013); AFOSR (FA9550-16-1-0121). The authors would also like to thank Carl Liebig and Jamie Gengler from the US Air Force Research Lab Publisher Copyright: {\textcopyright} 2020 SPIE.; Nonlinear Frequency Generation and Conversion: Materials and Devices XIX 2020 ; Conference date: 03-02-2020 Through 05-02-2020",
year = "2020",
doi = "10.1117/12.2547316",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Schunemann, {Peter G.} and Schepler, {Kenneth L.}",
booktitle = "Nonlinear Frequency Generation and Conversion",
}