High-density optical data storage with one-photon and two-photon near-field fluorescence microscopy
| Autor: | Faming Xu, Daniel Jakubczyk, Paras N. Prasad, Jacek Swiatkiewicz, Bruce A. Reinhardt, Yuzhen Shen, Richard A. Vaia |
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| Rok vydání: | 2008 |
| Předmět: |
3D optical data storage
Photon Materials science business.industry Materials Science (miscellaneous) Physics::Optics Optical storage Laser Industrial and Manufacturing Engineering law.invention Light intensity Optics Two-photon excitation microscopy law Femtosecond Near-field scanning optical microscope Business and International Management business |
| Zdroj: | Applied optics. 40(6) |
| ISSN: | 1559-128X |
| Popis: | A spatially localized photochemical reaction induced by near-field femtosecond laser pulses is demonstrated on a nanometer scale and used for high-density optical data storage. Recorded domains down to 120 and 70 nm are obtained with one-photon and two-photon excitation, respectively. It is shown that the local-field confinement that is due to the quadratic dependence of two-photon excitation on light intensity has the potential to increase the near-field optical storage density. |
| Databáze: | OpenAIRE |
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