Nonlinear rovibrational polarization response of water vapor to ultrashort long-wave infrared pulses

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Abstract

We study the rovibrational polarization response of water vapor using a fully correlated optical Bloch equation approach employing data from the HITRAN database. For a 10-μm long-wave infrared pulse the resulting linear response is negative, with a negative nonlinear response at intermediate intensities and a positive value at higher intensities. For a model atmosphere comprised of the electronic response of argon combined with the rovibrational response of water vapor this leads to a weakened positive nonlinear response at intermediate intensities. Propagation simulations using a simplified noncorrelated approach show the resultant reduction in the peak filament intensity sustained during filamentation due to the presence of the water vapor.

Original languageEnglish (US)
Article number043818
JournalPhysical Review A
Volume96
Issue number4
DOIs
StatePublished - Oct 9 2017

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planetary waves
water vapor
polarization
pulses
filaments
argon
atmospheres
propagation
electronics
simulation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

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title = "Nonlinear rovibrational polarization response of water vapor to ultrashort long-wave infrared pulses",
abstract = "We study the rovibrational polarization response of water vapor using a fully correlated optical Bloch equation approach employing data from the HITRAN database. For a 10-μm long-wave infrared pulse the resulting linear response is negative, with a negative nonlinear response at intermediate intensities and a positive value at higher intensities. For a model atmosphere comprised of the electronic response of argon combined with the rovibrational response of water vapor this leads to a weakened positive nonlinear response at intermediate intensities. Propagation simulations using a simplified noncorrelated approach show the resultant reduction in the peak filament intensity sustained during filamentation due to the presence of the water vapor.",
author = "K. Schuh and P. Rosenow and Miroslav Kolesik and Wright, {Ewan M} and Koch, {Stephan W} and Moloney, {Jerome V}",
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T1 - Nonlinear rovibrational polarization response of water vapor to ultrashort long-wave infrared pulses

AU - Schuh, K.

AU - Rosenow, P.

AU - Kolesik, Miroslav

AU - Wright, Ewan M

AU - Koch, Stephan W

AU - Moloney, Jerome V

PY - 2017/10/9

Y1 - 2017/10/9

N2 - We study the rovibrational polarization response of water vapor using a fully correlated optical Bloch equation approach employing data from the HITRAN database. For a 10-μm long-wave infrared pulse the resulting linear response is negative, with a negative nonlinear response at intermediate intensities and a positive value at higher intensities. For a model atmosphere comprised of the electronic response of argon combined with the rovibrational response of water vapor this leads to a weakened positive nonlinear response at intermediate intensities. Propagation simulations using a simplified noncorrelated approach show the resultant reduction in the peak filament intensity sustained during filamentation due to the presence of the water vapor.

AB - We study the rovibrational polarization response of water vapor using a fully correlated optical Bloch equation approach employing data from the HITRAN database. For a 10-μm long-wave infrared pulse the resulting linear response is negative, with a negative nonlinear response at intermediate intensities and a positive value at higher intensities. For a model atmosphere comprised of the electronic response of argon combined with the rovibrational response of water vapor this leads to a weakened positive nonlinear response at intermediate intensities. Propagation simulations using a simplified noncorrelated approach show the resultant reduction in the peak filament intensity sustained during filamentation due to the presence of the water vapor.

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