Accession Number : ADP008231

Title :   Frequency Dependence of IR Radiation-Induced Spectral Diffusion in Hole-Burning Systems,

Corporate Author : BAYREUTH UNIV (GERMANY F R)

Personal Author(s) : Richter, W. ; Lieberth, M. ; Haarer, D.

Report Date : 22 MAY 1992

Pagination or Media Count : 2

Abstract : Persistent spectral holes burnt in polymeric matrices such as polyethylene and polymethylmethacrylate, doped with metal-free phthalocyanine show infrared light-induced spectral diffusion. With respect to the energy dose of the IR irradiation, the hole broadening exhibits no saturation, whereas the hole filling saturates at a level of 70-90% of the initial hollow area, the exact value being dependent on the frequency of the infrared light.

Descriptors :   *POLYMERS, *INFRARED SPECTRA, *IRRADIATION, *MOLECULAR SPECTROSCOPY, MATRIX MATERIALS, POLYETHYLENE, POLYMETHYL METHACRYLATE, PHTHALOCYANINES, DIFFUSION, FREQUENCY.

Subject Categories : Plastics
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE