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Optical Storage in Helicene Films

IP.com Disclosure Number: IPCOM000080178D
Original Publication Date: 1973-Nov-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Smith, AW: AUTHOR [+2]

Abstract

A known material is being suggested as a candidate for an optical memory.

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This is the abbreviated version, containing approximately 100% of the total text.

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Optical Storage in Helicene Films

A known material is being suggested as a candidate for an optical memory.

Helicene molecules have large optical rotary powers due to their spiral structure. Calculations indicate that a 1 mu thick film of helicene has a large optical rotation and a relatively large absorption of laser light in the blue region. At present, a helicene film, although capable of high-signal output and high sensitivity as an optical memory, is nonerasable; at least, reversal of the writing process is difficult. Hence, memories using helicene would be employed as a read-only memory.

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