Cycloaddition in peptides for high-capacity optical storage

Brian Lohse, Rolf Henrik Berg, Søren Hvilsted, P.S. Ramanujam

Research output: Contribution to journalJournal articleResearchpeer-review

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 languageEnglish
JournalJapanese Journal of Applied Physics
Volume45
Issue number1B
Pages (from-to)488-492
ISSN0021-4922
DOIs
Publication statusPublished - 2006

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