期刊
ACS APPLIED MATERIALS & INTERFACES
卷 1, 期 10, 页码 2219-2229出版社
AMER CHEMICAL SOC
DOI: 10.1021/am900587u
关键词
optical data storage; two-photon absorption; photoacid generators; PAGs; fluorescence; two photon
资金
- National Science Foundation [ECS-0621715, CHE-0832622]
- U.S. Civilian Research and Development Foundation [UK132-2923-KV-07]
- Ministry of Education and Science of Ukraine [M/49-2008]
We report the photochemistry and development of a fluorescence readout-based, nonlinear absorption, three-dimensional optical data storage system In this system. writing was achieved by acid generation upon two-photon absorption (2PA) of a photoacid generator (PAG: at 7 10 or 730 nm) Readout was then performed by interrogating two-photon-absorbing dyes, after protonation, at 860 nm Linear and nonlinear photophysical characterizacion OF 2PA PAGs and acid-sensitive fluorescent dyes demonstrates good spectral resolution between the PAG and protonated 2PA dye and relatively high two-photon absorptivity Solution spectroscopic studies confirm photoacid generation and dye protonation Two-photon recording and readout of voxels were demonstrated in five and eight consecutive, crosstalk-free layers within a polymer matrix. generating a data storage capacity of up to 18 x 10(13) bits/cm(3)
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