Forward and Backward Detectable Gray-Scale Data Storage System in Polymeric Material
| Autor: | D. Carrara, Gregory Taupier, Kokou D. Dorkenoo, Emel Sungur, Alberto Barsella, Alain Fort, Loic Mager |
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| Rok vydání: | 2009 |
| Předmět: |
Materials science
Article Subject business.industry lcsh:Electronics Near-infrared spectroscopy Doping lcsh:TK7800-8360 Signal Grayscale Electronic Optical and Magnetic Materials Optics Two-photon excitation microscopy Femtosecond Harmonic lcsh:QC350-467 Electrical and Electronic Engineering Thin film business lcsh:Optics. Light |
| Zdroj: | Advances in OptoElectronics, Vol 2009 (2009) |
| ISSN: | 1687-5648 1687-563X |
| Popis: | We describe a fast way to encode a gray-scale image with quadratic properties in polymer thin film doped with azo dye. Under a two photon microscopy setup, we induced disorientation in corona-poled azo dye copolymer thin films by a focused near infrared (IR) femtosecond laser beam of variable exposure time. In situ, the sample was then scan to detect the second harmonic signal. We have also tested the backward detection which can provide reading and writing through a single microscope objective. In addition, we were able to store binary 3D information in the bulk of a 50 μm thick film of the same material. |
| Databáze: | OpenAIRE |
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