Accession Number : ADA322626

Title :   Nonlinear Optical Characterizations of II-VI Semiconductor Compounds for Device Applications.

Descriptive Note : Final rept. for 1 Sep 92-30 Aug 96,

Corporate Author : OKLAHOMA STATE UNIV STILLWATER

Personal Author(s) : Song, Jin-Joo

PDF Url : ADA322626

Report Date : 18 FEB 1997

Pagination or Media Count : 66

Abstract : In this AASERT program, graduate students were trained in the area of laser investigations of wide gap semiconductor materials such as ZnSe-based quantum wells and III-nitride heterostructures. The goal of the program was to study nonlinear optical properties for opto-electronic device applications. Blue semiconductor lasers and optical modulators were of particular interest to us. We have recorded several first observations: first femtosecond coherent four-wave-mixing spectroscopy in ZnSe/ZnCdSe quantum wells; first observation of high order (up to 7th order) optical nonlinearities in ZnSe/ ZnCdSe quantum wells. In fact, this is the highest order susceptibility observed in any semiconductors; first observation of two-photon pumped blue lasing in ZnSe; first observation of above room temperature (up to 450k) lasing in GaN. The lasing threshold was found to be not very sensitive to temperature. p2

Descriptors :   *SEMICONDUCTOR LASERS, *SEMICONDUCTORS, *NONLINEAR OPTICS, *GROUP II-VI COMPOUNDS, REPRINTS, OPTICAL PROPERTIES, TEMPERATURE, ELECTROOPTICS, SPECTROSCOPY, QUANTUM WELLS, SENSITIVITY, FOUR WAVE MIXING, NITRIDES, ROOM TEMPERATURE, PHOTONS, ZINC, CADMIUM, GALLIUM, BLUE(COLOR), LIGHT MODULATORS, SELENIDES, PUMPING.

Subject Categories : Inorganic Chemistry
      Electrical and Electronic Equipment
      Lasers and Masers
      Atomic and Molecular Physics and Spectroscopy
      Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE