Nonlinear optical properties of nipi superlattices

P. P. Ruden, J. A. Lehman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Two issues relevant to the nonlinear optical properties of nipi-type superlattices are discussed. First, an experimental comparison of photoinduced changes in the absorption coefficients of nipi, hetero-nipi, and heterostructure superlattices is presented. This shows the characteristic differences between those structures that make use of the modulation of internal electric fields and those that operate solely on the basis of free carrier effects. It is shown that the modulation of internal electric fields gives rise to large optical nonlinearities at low optical power levels. Second, a model that describes the lateral distribution of photoinjected charge carriers in an inhomogeneously excited nipi-type superlattice is discussed. It is shown that lateral drift dominates over diffusion, and that the characteristic drift length is large.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages190-197
Number of pages8
ISBN (Print)0819402575, 9780819402578
DOIs
StatePublished - 1990
EventNonlinear Optical Materials and Devices for Photonic Switching - Los Angeles, CA, USA
Duration: Jan 16 1990Jan 17 1990

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1216
ISSN (Print)0277-786X

Conference

ConferenceNonlinear Optical Materials and Devices for Photonic Switching
CityLos Angeles, CA, USA
Period1/16/901/17/90

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