Abstract
Photodimerization of chromophores attached to a short peptide chain is investigated for high-capacity optical digital storage with UV lasers. The length and rigidity of the peptide chain assure an optimal distance and orientation of the chromophores for effective photodimerization. Using a theory developed by Tomlinson, the absorption cross section for the dimerization process in a uracil-ornithine-based hexamer is determined to be 9 x 10(-20) cm(2). A large change in the transmission due to irradiation in the UV area may make it possible to realize multilevel storage in a thin film of the peptides.
Original language | English |
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Journal | Japanese Journal of Applied Physics |
Volume | 45 |
Issue number | 1B |
Pages (from-to) | 488-492 |
ISSN | 0021-4922 |
DOIs | |
Publication status | Published - 2006 |