Essential-states mechanism of optical nonlinearity in -conjugated polymers

S. N. Dixit, Dandan Guo, Sumitendra Mazumdar

Research output: Contribution to journalArticle

189 Citations (Scopus)

Abstract

We present a microscopic mechanism of optical nonlinearity in conjugated polymers. It is shown that the bulk of the nonlinearity is determined by only two well-defined channels, even though an infinite number of channels are possible in principle. We are able to explain the complete frequency dependence of the third-harmonic generation in both trans-polyacetylene and polydiacetylene within the same model without invoking weak Coulomb interactions between electrons or interchain interactions.

Original languageEnglish (US)
Pages (from-to)6781-6784
Number of pages4
JournalPhysical Review B
Volume43
Issue number8
DOIs
StatePublished - 1991

Fingerprint

Polyacetylenes
Conjugated polymers
Harmonic generation
Coulomb interactions
nonlinearity
Electrons
polyacetylene
polymers
harmonic generations
interactions
electrons
polydiacetylene

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Essential-states mechanism of optical nonlinearity in -conjugated polymers. / Dixit, S. N.; Guo, Dandan; Mazumdar, Sumitendra.

In: Physical Review B, Vol. 43, No. 8, 1991, p. 6781-6784.

Research output: Contribution to journalArticle

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