TY - JOUR
T1 - Ultrafast mid-infrared high harmonic and supercontinuum generation with n 2 characterization in zinc selenide
AU - Werner, Kevin
AU - Hastings, Michael G.
AU - Schweinsberg, Aaron
AU - Wilmer, Brian L.
AU - Austin, Drake
AU - Wolfe, Christopher M.
AU - Kolesik, Miroslav
AU - Ensley, Trenton R.
AU - Vanderhoef, Laura
AU - Valenzuela, Anthony
AU - Chowdhury, Enam
N1 - Funding Information:
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); AFOSR (FA9550-16-1-0088).
Publisher Copyright:
© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.
PY - 2019/2/4
Y1 - 2019/2/4
N2 - Polycrystalline ZnSe is an exciting source of broadband supercontinuum and high-harmonic generation via random quasi phase matching, exhibiting broad transparency in the mid-infrared (0.5 − 20 μ m ). In this work, the effects of wavelength, pulse power, intensity, propagation length, and crystallinity on supercontinuum and high harmonic generation are investigated experimentally using ultrafast mid-infrared pulses. Observed harmonic conversion efficiency scales linearly in propagation length, reaching as high as 36%. For the first time to our knowledge, n 2 is measured for mid-infrared wavelengths in ZnSe: n 2 (λ = 3.9 μ m) = (1.2 ± 0.3) ×10 −14 cm 2 / W . Measured n 2 is applied to simulations modeling high-harmonic generation in polycrystalline ZnSe as an effective medium.
AB - Polycrystalline ZnSe is an exciting source of broadband supercontinuum and high-harmonic generation via random quasi phase matching, exhibiting broad transparency in the mid-infrared (0.5 − 20 μ m ). In this work, the effects of wavelength, pulse power, intensity, propagation length, and crystallinity on supercontinuum and high harmonic generation are investigated experimentally using ultrafast mid-infrared pulses. Observed harmonic conversion efficiency scales linearly in propagation length, reaching as high as 36%. For the first time to our knowledge, n 2 is measured for mid-infrared wavelengths in ZnSe: n 2 (λ = 3.9 μ m) = (1.2 ± 0.3) ×10 −14 cm 2 / W . Measured n 2 is applied to simulations modeling high-harmonic generation in polycrystalline ZnSe as an effective medium.
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U2 - 10.1364/OE.27.002867
DO - 10.1364/OE.27.002867
M3 - Article
C2 - 30732318
AN - SCOPUS:85061011762
SN - 1094-4087
VL - 27
SP - 2867
EP - 2885
JO - Optics Express
JF - Optics Express
IS - 3
ER -