ELIMINATION OF THE BACKGROUND FROM POLARITON CARS SPECTRA BY SPATIAL SEPARATION OF THE EXCITING AND PROBE BEAMS

Authors
ORLOV SN POLIVANOV YN
Citation
Sn. Orlov et Yn. Polivanov, ELIMINATION OF THE BACKGROUND FROM POLARITON CARS SPECTRA BY SPATIAL SEPARATION OF THE EXCITING AND PROBE BEAMS, Quantum electronics, 28(2), 1998, pp. 167-168
Citations number
9
Categorie Soggetti
Physics, Applied","Engineering, Eletrical & Electronic
Journal title
Quantum electronics → ACNP
ISSN journal
10637818
Volume
28
Issue
2
Year of publication
1998
Pages
167 - 168
Database
ISI
SICI code
1063-7818(1998)28:2<167:EOTBFP>2.0.ZU;2-1
Abstract
A method for elimination of the background (resulting from direct four -photon processes) from polariton CARS spectra is proposed and demonst rated 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 pr obe beam are spatially separated in a crystal.