TITLE

Photodimerization in dipeptides for high capacity optical digital storage

AUTHOR(S)
Ramanujam, P. S.; Berg, Rolf H.
PUB. DATE
September 2004
SOURCE
Applied Physics Letters;9/6/2004, Vol. 85 Issue 10, p1665
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have developed peptide materials with chromophores that undergo cycloaddition, suitable for terabit optical digital storage in a 5.25 in. disc. The rationale behind this design is that the length and rigidity of the backbone can be adjusted to facilitate the formation of a photodimer without large physical movements of the chromophores on exposure to UV light. Initially strongly absorbing films transmit up to 50% of light on irradiation at dimerizing wavelengths. This property can be utilized to record grey levels. An intensity-dependent transmission behavior has been observed that may enable data to be written and read at the same wavelength.
ACCESSION #
14399974

 

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