Photonic crystal structures with submicrometer spatial resolution achieved by high power femtosecond laser-induced photopolymerization

Hong Bo Sun; Ying Xu; Masafumi Miwa; Shigeki Matsuo; Hiroaki Misawa

doi:10.1117/12.377008

Photonic crystal structures with submicrometer spatial resolution achieved by high power femtosecond laser-induced photopolymerization

Hong Bo Sun, Ying Xu, Masafumi Miwa, Shigeki Matsuo, Hiroaki Misawa

Department of Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

We demonstrate in this paper a fabrication of three-dimensional microstructures using photopolymerization of resin by two-photon absorption. When a tightly focused laser beam was scanned in a light-curling liquid, solidified rods were formed following the trace of the scanning. If the solidification was arranged to occur along the frame of a microstructure, a designed spatial pattern would be transformed into material object. Due to a quadratic dependence of photopolymerization rate on the laser pulse energy, the size of solidified voxels was controlled down to submicrometer order. Infrared transmission measurement exhibited pronounced band gap effects from thus-fabricated photonic crystal structures.

Original language	English
Pages (from-to)	122-130
Number of pages	9
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3888
DOIs	https://doi.org/10.1117/12.377008
Publication status	Published - 2000
Event	High-Power Lasers in Manufacturing - Osaka, Jpn Duration: 1999 Nov 1 → 1999 Nov 5

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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Photonic crystal structures with submicrometer spatial resolution achieved by high power femtosecond laser-induced photopolymerization. / Sun, Hong Bo; Xu, Ying; Miwa, Masafumi; Matsuo, Shigeki; Misawa, Hiroaki.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 3888, 2000, p. 122-130.

Research output: Contribution to journal › Conference article › peer-review

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