Read-Write-Erasable Thin Film Optical Recording Medium

N. F. Borrelli; P. L. Young

doi:10.1117/12.958645

10 September 1980 Read-Write-Erasable Thin Film Optical Recording Medium

N. F. Borrelli, P. L. Young

Proceedings Volume 0222, Laser Scanning and Recording for Advanced Image and Data Handling; (1980) https://doi.org/10.1117/12.958645
Event: 1980 Technical Symposium East, 1980, Washington, D.C., United States

Abstract

The optical recording characteristics of a silver halide thin film structure were investigated with respect to its possible use as a read-write-erasable medium. Tracks of ~1μm spots were recorded using a polarized He-Ne as the writing source. The recorded tracks were viewed with a GaAs laser between crossed polarizers; the writing energy density was determined to be ~0.2 joules/cm2 in the transmission mode. Erasure was also demonstrated by re-exposing a portion of the recorded tracks with the defocused write laser with its polarization rotates by 45° from the original write polarization direction.

Citation Download Citation

N. F. Borrelli and P. L. Young "Read-Write-Erasable Thin Film Optical Recording Medium", Proc. SPIE 0222, Laser Scanning and Recording for Advanced Image and Data Handling, (10 September 1980); https://doi.org/10.1117/12.958645

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