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Title: Second harmonic generation by charge-transfer excitons interacting with phonons

Abstract

Effects of exciton-phonon interaction on the nonlinear optical response of charge-transfer excitons (CTE) are studied in the framework of an exactly solvable model. It is found that the second order excitonic optical polarizability {beta} is modified due to the CTE-phonon interaction. For a nonresonant frequency range, where {beta} is relatively small, the change is not significant. On the contrary, in the vicinity of resonances (when the light frequency {omega}{approximately}{omega}{sub 0} or {omega}{approximately}{omega}{sub 0}/2, {omega}{sub 0} is the CTE transition frequency), the CTE-phonon interaction may remarkably diminish the value of {beta}. This should be taken into account when considering CTE systems in nonlinear optics.

Authors:
;
Publication Date:
Sponsoring Org.:
(US)
OSTI Identifier:
40203547
Resource Type:
Journal Article
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 63; Journal Issue: 23; Other Information: DOI: 10.1103/PhysRevB.63.233101; Othernumber: PRBMDO000063000023233101000001; 001115PRB; PBD: 15 Jun 2001; Journal ID: ISSN 0163-1829
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; EXCITONS; FREQUENCY RANGE; HARMONIC GENERATION; NONLINEAR OPTICS; PHONONS; POLARIZABILITY

Citation Formats

Reineker, P, and Yudson, V I. Second harmonic generation by charge-transfer excitons interacting with phonons. United States: N. p., 2001. Web. doi:10.1103/PhysRevB.63.233101.
Reineker, P, & Yudson, V I. Second harmonic generation by charge-transfer excitons interacting with phonons. United States. https://doi.org/10.1103/PhysRevB.63.233101
Reineker, P, and Yudson, V I. 2001. "Second harmonic generation by charge-transfer excitons interacting with phonons". United States. https://doi.org/10.1103/PhysRevB.63.233101.
@article{osti_40203547,
title = {Second harmonic generation by charge-transfer excitons interacting with phonons},
author = {Reineker, P and Yudson, V I},
abstractNote = {Effects of exciton-phonon interaction on the nonlinear optical response of charge-transfer excitons (CTE) are studied in the framework of an exactly solvable model. It is found that the second order excitonic optical polarizability {beta} is modified due to the CTE-phonon interaction. For a nonresonant frequency range, where {beta} is relatively small, the change is not significant. On the contrary, in the vicinity of resonances (when the light frequency {omega}{approximately}{omega}{sub 0} or {omega}{approximately}{omega}{sub 0}/2, {omega}{sub 0} is the CTE transition frequency), the CTE-phonon interaction may remarkably diminish the value of {beta}. This should be taken into account when considering CTE systems in nonlinear optics.},
doi = {10.1103/PhysRevB.63.233101},
url = {https://www.osti.gov/biblio/40203547}, journal = {Physical Review B},
issn = {0163-1829},
number = 23,
volume = 63,
place = {United States},
year = {Fri Jun 15 00:00:00 EDT 2001},
month = {Fri Jun 15 00:00:00 EDT 2001}
}