Super-Resolution with a Photochromic Mask Layer in an Optical Memory

Autor: Masahiro Irie, Minoru Kume, Kuroki Kazuhiko, Toshio Harada, Tsuyoshi Tsujioka
Rok vydání: 1995
Předmět:
Zdroj: Optical Review. 2:181-186
ISSN: 1349-9432
1340-6000
DOI: 10.1007/s10043-995-0181-0
Popis: The possibility of a super-resolution optical memory using a photochromic mask layer was theoretically discussed. An equation which estimates the transmittance change of the mask layer was derived. The numerical simulation based on the equation showed that the reflectance increase of the layer by photo-irradiation is nonlinear when the optical density of the layer is high. The nonlinear response decreased the crosstalk in adjacent recording tracks and improved the MTF (modulation transfer function) characteristics, resulting in a higher recording density.
Databáze: OpenAIRE