Photosensitive polymeric materials for two-photon 3D WORM optical data storage systems
| Autor: | Gheorghe Luchita, Sheng Yao, Ciceron O. Yanez, Carolina D. Andrade, Kevin D. Belfield, Mykhailo V. Bondar |
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| Rok vydání: | 2010 |
| Předmět: |
chemistry.chemical_classification
3D optical data storage Materials science business.industry Protonation Polymer Molar absorptivity Two-photon absorption Fluorescence Two-photon excitation microscopy chemistry Optoelectronics General Materials Science business Absorption (electromagnetic radiation) |
| Zdroj: | ACS applied materialsinterfaces. 1(10) |
| ISSN: | 1944-8252 |
| Popis: | 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 710 or 730 nm). Readout was then performed by interrogating two-photon-absorbing dyes, after protonation, at 860 nm. Linear and nonlinear photophysical characterization 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 1.8 x 10(13) bits/cm(3). |
| Databáze: | OpenAIRE |
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