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

Journal Article · Sat Feb 28 00:00:00 EST 1998 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE1998V028N02ABEH001149· OSTI ID:21439418

Orlov, Sergei N; Polivanov, Yurii N ^[1]

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1. A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

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)

• OSTI ID: 21439418
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 28, Issue 2; Other Information: DOI: 10.1070/QE1998v028n02ABEH001149; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BEAMS
COHERENT SCATTERING
CRYSTALS
EXCITATION
PHOTONS
POLARONS
PROBES
RAMAN SPECTRA
STOKES PARAMETERS
BOSONS
ELEMENTARY PARTICLES
ENERGY-LEVEL TRANSITIONS
MASSLESS PARTICLES
QUASI PARTICLES
SCATTERING
SPECTRA