Roles of band states and two-photon transitions in the electroabsorption of a polydiacetylene

Y. Kawabe, F. Jarka, N. Peygambarian, D. Guo, Sumitendra Mazumdar, S. N. Dixit, F. Kajzar

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

We report results of experimental and theoretical investigations of electroabsorption (EA) in a DCH polydiacetylene. In addition to the Stark shift of the exciton, a high-energy feature is seen in EA, whose origin has been the subject of controversy. Based on exact theoretical calculation of the EA within an extended Peierls-Hubbard model, we ascribe the high-energy signal to transitions to a continuum threshold. We briefly discuss the contributions of these band threshold states to the third-order optical nonlinearity, (3).

Original languageEnglish (US)
Pages (from-to)6530-6533
Number of pages4
JournalPhysical Review B
Volume44
Issue number12
DOIs
StatePublished - 1991

Fingerprint

Hubbard model
Excitons
Photons
thresholds
photons
nonlinearity
excitons
continuums
energy
shift
polydiacetylene
LDS 751

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Roles of band states and two-photon transitions in the electroabsorption of a polydiacetylene. / Kawabe, Y.; Jarka, F.; Peygambarian, N.; Guo, D.; Mazumdar, Sumitendra; Dixit, S. N.; Kajzar, F.

In: Physical Review B, Vol. 44, No. 12, 1991, p. 6530-6533.

Research output: Contribution to journalArticle

Kawabe, Y, Jarka, F, Peygambarian, N, Guo, D, Mazumdar, S, Dixit, SN & Kajzar, F 1991, 'Roles of band states and two-photon transitions in the electroabsorption of a polydiacetylene', Physical Review B, vol. 44, no. 12, pp. 6530-6533. https://doi.org/10.1103/PhysRevB.44.6530
Kawabe, Y. ; Jarka, F. ; Peygambarian, N. ; Guo, D. ; Mazumdar, Sumitendra ; Dixit, S. N. ; Kajzar, F. / Roles of band states and two-photon transitions in the electroabsorption of a polydiacetylene. In: Physical Review B. 1991 ; Vol. 44, No. 12. pp. 6530-6533.
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