Giant-Oscillator-Strength Effect on Excitonic Optical Nonlinearities Due to Localization

Research output: Contribution to journalArticle

90 Citations (Scopus)

Abstract

The optical nonlinearity (3) of excitons localized by disorder or impurity has a large value as a consequence of the double multiplication of the giant oscillator strength due to exciton localization because the (3) process involves the double repetition of the excitonic transition. The importance of the exciton correlation in the coherent nonlinear optical process is pointed out for the first time. The sign of (3) relative to (1) gives important information about the character of the exciton correlation.

Original languageEnglish
Pages (from-to)2533-2536
Number of pages4
JournalPhysical Review Letters
Volume56
Issue number23
DOIs
Publication statusPublished - 1986
Externally publishedYes

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oscillator strengths
nonlinearity
excitons
multiplication
repetition
disorders
impurities

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Giant-Oscillator-Strength Effect on Excitonic Optical Nonlinearities Due to Localization. / Takagahara, Toshihide; Hanamura, E.

In: Physical Review Letters, Vol. 56, No. 23, 1986, p. 2533-2536.

Research output: Contribution to journalArticle

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