Elimination of the background from polariton CARS spectra by spatial separation of the exciting and probe beams

A method for elimination of the background (resulting from direct four-photon processes) from polariton CARS spectra is proposed and demonstrated experimentally. The method is based on the ability of polaritons to propagate in a medium over macroscopic distances and it requires a geometry of the int...

Full description

Saved in:
Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 1998-02, Vol.28 (2), p.167-168
Main Authors: Orlov, Sergei N, Polivanov, Yurii N
Format: Article
Language:English
Subjects:
BEAMS
BOSONS
COHERENT SCATTERING
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTALS
ELEMENTARY PARTICLES
ENERGY-LEVEL TRANSITIONS
EXCITATION
MASSLESS PARTICLES
PHOTONS
POLARONS
PROBES
QUASI PARTICLES
RAMAN SPECTRA
SCATTERING
SPECTRA
STOKES PARAMETERS
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A method for elimination of the background (resulting from direct four-photon processes) from polariton CARS spectra is proposed and demonstrated experimentally. The method is based on the ability of polaritons to propagate in a medium over macroscopic distances and it requires a geometry of the interacting waves in which the regions of biharmonic excitation of polaritons and probing of the excited polaritons by a probe field are spatially separated in a crystal. (nonlinear optical phenomena and devices)
ISSN:1063-7818
1468-4799
DOI:10.1070/QE1998v028n02ABEH001149