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Proceedings Paper

Formation of photonic crystals by femtosecond laser microfabrication
Author(s): Hiroaki Misawa; Saulius Juodkazis; Hong-Bo Sun; Shigeki Matsuo; Junji Nishii
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Paper Abstract

We report a novel photo-polymerization technique of well- defined three-dimensional layer-by-layer structures by two- photon absorption (TPA in resins. By changing the structural parameters such as the rod diameter, pitch )intra-rod distance in plane) and angular orientation between neighbor planes different lattice types can be accomplished. This enables a systematic investigation of optical properties of photonic crystals (PhCs) made by TPA photo-polymerization. The solidified skeleton of PhC can be utilized as a mold to infiltrate solidifiable dye. Selective removal of the solidified resin can yield in a reverse PhC structures. When the defect-layer(s) are introduced into PhC during fabrication the PhC may act as a high-quality microcavity. A defect mode has been observed for the first time in thus-fabricated structures. Laser- microexplosion fabrication is another promising technique for the PhC and optical memory applications. TO achieve an opening of a full-bandgap the media of high dielectric constant is of request (a high dielectric contrast is necessary).

Paper Details

Date Published: 6 November 2000
PDF: 4 pages
Proc. SPIE 4088, First International Symposium on Laser Precision Microfabrication, (6 November 2000); doi: 10.1117/12.405730
Show Author Affiliations
Hiroaki Misawa, Univ. of Tokushima (Japan)
Saulius Juodkazis, Univ. of Tokushima (Japan)
Hong-Bo Sun, Univ. of Tokushima (Japan)
Shigeki Matsuo, Univ. of Tokushima (Japan)
Junji Nishii, Osaka National Research Institute (Japan)

Published in SPIE Proceedings Vol. 4088:
First International Symposium on Laser Precision Microfabrication
Isamu Miyamoto; Koji Sugioka; Thomas W. Sigmon, Editor(s)

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