Optical absorption in quantum wells with two characteristic curvatures

N. F. Johnson, J. E. Vargas

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Novel features are predicted in the infrared absorption spectrum of an interacting electron gas in a parabolic quantum well with two characteristic curvatures (biparabolic quantum well). A series of well-defined absorption peaks appears below the frequency of the usual center-of-mass absorption. These subfundamental peaks correspond to modes of the coupled electron gas and light system, and lie beyond the usual treatment of light absorption within first-order perturbation theory.

Original languageEnglish (US)
Pages (from-to)627-629
Number of pages3
JournalApplied Physics Letters
Issue number6
StatePublished - 1993

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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