TY - JOUR
T1 - Simulations of 10 μm filaments in a realistically modeled atmosphere
AU - Panagiotopoulos, Paris
AU - Schuh, Kolja
AU - Kolesik, Miroslav
AU - Moloney, Jerome V.
N1 - Funding Information:
Air Force Office of Scientific Research (AFOSR) MURI (AFOSR FA9550-15-1-0272, AFOSR FA9550-16-1-0088).
Publisher Copyright:
© 2016 Optical Society of America.
PY - 2016/10/1
Y1 - 2016/10/1
N2 - We numerically study the formation and propagation dynamics of 10 μm filaments in the atmosphere. We investigate filament formation of multi-Joule 100 fs and 1 ps duration pulses over propagation lengths of 100 m and find that the carrier self-steepening regularization mechanism predicted for 4 μm wavelengths still holds. In our study we include multiple physical effects ignored in the past, such as rotational Raman and avalanche ionization. In addition we incorporate in our simulations the most detailed dispersive model available for atmospheric air, which includes multiple species, such as O2, N2, Ar, CO2, CO, and CH4, for a variety of humidity levels. Results presented here are expected to have a significant impact in the wider field of nonlinear optics where the use of mid-infrared lasers is rapidly growing.
AB - We numerically study the formation and propagation dynamics of 10 μm filaments in the atmosphere. We investigate filament formation of multi-Joule 100 fs and 1 ps duration pulses over propagation lengths of 100 m and find that the carrier self-steepening regularization mechanism predicted for 4 μm wavelengths still holds. In our study we include multiple physical effects ignored in the past, such as rotational Raman and avalanche ionization. In addition we incorporate in our simulations the most detailed dispersive model available for atmospheric air, which includes multiple species, such as O2, N2, Ar, CO2, CO, and CH4, for a variety of humidity levels. Results presented here are expected to have a significant impact in the wider field of nonlinear optics where the use of mid-infrared lasers is rapidly growing.
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U2 - 10.1364/JOSAB.33.002154
DO - 10.1364/JOSAB.33.002154
M3 - Article
AN - SCOPUS:84991221549
VL - 33
SP - 2154
EP - 2161
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
SN - 0740-3224
IS - 10
ER -