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Proceedings Paper

Two-photon-induced polymerization in a laser gain medium for optical microstructure
Author(s): S. Yokoyama; T. Nakahama; H. Miki; S. Mashiko
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Paper Abstract

We have fabricated a polymer solid-state microcavity in the laser gain media by two-photon-induced polymerization technique. The photopolymerization resin contains conventional laser-dye and dendrimer. A dendrimer can encapsulate the laser-dyes, limiting cluster formation and intermolecular energy transfer, and promising a high level of optical gain. The effect can be extended to prepare an optically active microstructure using the two-photon-induced polymerization technique. We fabricated a polymeric microcavity, which consisted of <400 nm-linewidth strips arranged in layer-by-layer structure. The periodic variation in the refractive index gave rise to Bragg reflection. A laser emission was measured in the microcavity under optical excitation. The spectral linewidth was about 0.1 nm above the lasing threshold. The laser emission is attributed both to the distributed Bragg reflection and to the high gain of a polymer medium containing laser-dye with a high concentration.

Paper Details

Date Published: 19 August 2005
PDF: 8 pages
Proc. SPIE 5934, Nonlinear Optical Transmission and Multiphoton Processes in Organics III, 593403 (19 August 2005); doi: 10.1117/12.616083
Show Author Affiliations
S. Yokoyama, National Institute of Information and Communications Technology (Japan)
T. Nakahama, National Institute of Information and Communications Technology (Japan)
H. Miki, National Institute of Information and Communications Technology (Japan)
S. Mashiko, National Institute of Information and Communications Technology (Japan)


Published in SPIE Proceedings Vol. 5934:
Nonlinear Optical Transmission and Multiphoton Processes in Organics III
A. Todd Yeates, Editor(s)

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