Measurements of the nonlinear refractive index of air, N 2 , and O 2 at 10 μm using four-wave mixing

We report on measurements of the nonlinear index of refraction of air, N , and O at a wavelength close to 10 μm by collinear four-wave mixing of a 200 MW CO laser beat-wave. The use of a 200 ps long beat-wave comprising radiation amplified on the 10P20 and 10R16 lines of the CO laser provides a sens...

Full description

Saved in:
Bibliographic Details
Published inOptics letters Vol. 41; no. 17; p. 3924
Main Authors Pigeon, J J, Tochitsky, S Ya, Welch, E C, Joshi, C
Format Journal Article
LanguageEnglish
Published United States 01.09.2016
Online AccessGet more information

Cover

More Information
Summary:We report on measurements of the nonlinear index of refraction of air, N , and O at a wavelength close to 10 μm by collinear four-wave mixing of a 200 MW CO laser beat-wave. The use of a 200 ps long beat-wave comprising radiation amplified on the 10P20 and 10R16 lines of the CO laser provides a sensitive method to measure the small nonlinearities characteristic of the gas phase in a spectral region where no such data exists.
ISSN:1539-4794
DOI:10.1364/OL.41.003924