1998年
Multilayered optical memory using silica glasses as data-recording media
MATERIALS SCIENCE AND ENGINEERING SERVING SOCIETY
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- 開始ページ
- 103
- 終了ページ
- 106
- 記述言語
- 英語
- 掲載種別
- 研究論文(国際会議プロシーディングス)
- 出版者・発行元
- ELSEVIER SCIENCE BV
Multilayered optical data storage was examined in SiO2 and Ge-SiO2 glasses by using a focused 800 nm, 120 fs, 200 kHz pulsed laser. The glasses are transparent in the wavelengths ranging from 300 to 1000 nm. After the irradiation of the 800 nm tightly focused femtosecond laser, a refractive-index bit was formed in the glasses. The relations between the size of refractive-index bit versus average power and irradiation duration of the laser have been examined. ESR spectra showed a significant increase in the concentration of SiE' and GeE' color centers in the laser irradiated glasses. Writing 3-dimensional refractive-index bit inside the transparent glasses based on a multi-photon absorption process is expected to become a promising method to fabricate optical memory with both an ultra high storage density and an ultra high recording speed.
- リンク情報
- ID情報
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- Web of Science ID : WOS:000079751600019