Beam Deflection Measurement Of Boundelectronic And Rotational Nonlinear Refraction In Molecular Gases

Abstract

A polarization-resolved beam deflection technique is used to separate the bound-electronic and molecular rotational components of nonlinear refractive transients of molecular gases. Coherent rotational revivals from N2, O2, and two isotopologues of carbon disulfide (CS2), are identified in gaseous mixtures. Dephasing rates, rotational and centrifugal distortion constants of each species are measured. Polarization at the magic angle allows unambiguous measurement of the bound-electronic nonlinear refractive index of air and second hyperpolarizability of CS2. Agreement between gas and liquid phase second hyperpolarizability measurements is found using the Lorentz-Lorenz local field correction.

Publication Date

8-24-2015

Publication Title

Optics Express

Volume

23

Issue

17

Number of Pages

22224-22237

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OE.23.022224

Socpus ID

84952920802 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84952920802

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