Fabrication of high-efficiency diffraction gratings in glass
| Autor: | Shuhei Tanaka, Yutaka Kuroiwa, Nobuhito Takeshima, Yoshihiro Narita, Kazuyuki Hirao |
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| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Diffraction
Materials science business.industry Physics::Optics Laser Diffraction efficiency Condensed Matter::Disordered Systems and Neural Networks Atomic and Molecular Physics and Optics Computer Science::Other law.invention Micrometre Condensed Matter::Materials Science Optics law Femtosecond Optoelectronics Physics::Atomic Physics business Ultrashort pulse Diffraction grating Microfabrication |
| Zdroj: | OPTICS LETTERS. 30(4):352-354 |
| ISSN: | 0146-9592 |
| Popis: | We investigated a microfabrication process for optical gratings with periods of micrometer order that use ultrafast laser pulses in semiconductor-doped glass. ZnS- or PbS-doped SiO2-A12O3-B2O3-CaO-ZnO-Na2O-K2O glass was prepared by a melting method. Glass transmission diffraction gratings with a high refractive-index difference were fabricated with femtosecond laser pulses. The first-order diffraction efficiencies of these gratings were approximately 80%, and the first-order diffraction angles of these gratings were 8 degrees at telecommunication wavelengths. |
| Databáze: | OpenAIRE |
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