Enhancement of diffraction efficiency and storage life of poly(vinyl chloride)-based optical recording medium with incorporation of an electron donor.
The diffraction efficiency, sensitivity, and storage life of methylene blue-sensitized poly(vinyl chloride) film was improved by the addition of an electron donor in the matrix. The addition of pyridine enhanced the diffraction efficiency by two times, and storage life of the gratings was increased to 2-3 days.
John
Beena Mary
BM
Department of Physics, Cochin University of Science and Technology, Kerala, India.
Ushamani
M
M
Sreekumar
K
K
Joseph
Rani
R
Kartha
C Sudha
CS