Accession Number : ADP008277

Title :   Linear Electron-Phonon Interaction in Dye-Doped Polymers: Boson Peak Frequencies in Polymers,

Corporate Author : OSAKA UNIV (JAPAN)

Personal Author(s) : Saikan, Seishiro

Report Date : 22 MAY 1992

Pagination or Media Count : 4

Abstract : This talk presents a review of our recent experimental results on femtosecond accumulated photon echo in dye-doped Polymers. The aim of this research is to clarify the parameter that is most important n affecting seriously the linear electron-phonon coupling in these samples, and to find the materials which have extremely weak linear electron-phonon coupling. The latter research is needed for the improvement of the PHB memory materials. We have so far demonstrated experimentally that Fourier-transform spectroscopy based on the femtosecond accumulated photon echo is most useful for these studies. Furthermore, the detection sensitivity for the accumulated photon echoes has been improved significantly with the use of the phase modulation technique.

Descriptors :   *DYES, *ELECTRONS, *PHONONS, *POLYMERS, *LINEAR SYSTEMS, *DOPING, COUPLINGS, DETECTION, ECHOES, MATERIALS, MODULATION, PARAMETERS, PHASE, PHASE MODULATION, PHOTONS, SENSITIVITY, SPECTROSCOPY, INTERACTIONS, FREQUENCY, MEMORY DEVICES, POLYSTYRENE, ABSORPTION, OPTICS, ELECTROMAGNETIC PROPERTIES, ENERGY, QUANTUM ELECTRONICS, BOSONS.

Subject Categories : Polymer Chemistry
      Atomic and Molecular Physics and Spectroscopy
      Optics
      Quantum Theory and Relativity

Distribution Statement : APPROVED FOR PUBLIC RELEASE