Formation of photonic crystals by femtosecond laser microfabrication

Hiroaki Misawa, Saulius Juodkazis, Hong Bo Sun, Shigeki Matsuo, Jyunji Nishii

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

We report a novel photo-polymerization technique of well-defined three-dimensional (3D) 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).

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages29-32
Number of pages4
Volume4088
DOIs
Publication statusPublished - 2000
Externally publishedYes
Event1st International Symposium on Laser Precision Microfabrication - Omiya, Jpn
Duration: 2000 Jun 142000 Jun 16

Other

Other1st International Symposium on Laser Precision Microfabrication
CityOmiya, Jpn
Period00/6/1400/6/16

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Misawa, H., Juodkazis, S., Sun, H. B., Matsuo, S., & Nishii, J. (2000). Formation of photonic crystals by femtosecond laser microfabrication. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4088, pp. 29-32). Society of Photo-Optical Instrumentation Engineers. https://doi.org/10.1117/12.405730