Accession Number : ADA263603


Title :   Nonequilibrium Screening and Exciton Dynamics Probed by Femtosecond Laser Pulses


Descriptive Note : Final rept. 15 May 1989-14 Nov 1992


Corporate Author : ARIZONA UNIV TUCSON OPTICAL SCIENCES CENTER


Personal Author(s) : Peyghambarian, N ; Koch, S W


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a263603.pdf


Report Date : 15 Feb 1993


Pagination or Media Count : 74


Abstract : Our efforts were aimed at the study of nonequilibrium properties of a high-density electron-hole-pair system, which was generated resonantly by femtosecond laser excitation. The investigation consisted of joint theoretical and experimental approaches. Using state of the art femtosecond experimental techniques, we studied extremely rapid physical phenomena. We have succeeded not only in completing the proposed tasks, but have also initiated some new projects and obtained very interesting results. During the last three years in this program, we have published three physical Review Letters, nine Physical Reviews, several other papers in good journals such as Appl. Phys. Lett., J. Opt. Soc. Am., etc., nineteen invited presentations at important conferences, and several contributed papers at international conferences. The list of publications is given in the next section. Here, we summarize the highlights of our achievements during the last three years of this contract.


Descriptors :   *HOLES(ELECTRON DEFICIENCIES) , *ELECTRONS , *LASERS , *PULSES , SEMICONDUCTORS , ECHOES , VALENCE BANDS , RESONANCE , HIGH DENSITY , PHOTONS , CADMIUM , MIXING , RELAXATION , NONEQUILIBRIUM FLOW , OSCILLATION , ADIABATIC CONDITIONS , SOLID STATE ELECTRONICS , EXCITATION , DYNAMICS , SELENIUM , DENSITY , INTERACTIONS


Subject Categories : Electrical and Electronic Equipment
      Lasers and Masers
      Atomic and Molecular Physics and Spectroscopy
      Quantum Theory and Relativity


Distribution Statement : APPROVED FOR PUBLIC RELEASE