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6 February 2008 Three-dimensional recording inside dielectrics for photonic applications
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Three-dimensional (3D) structuring of polymers by tightly focused femtosecond laser pulses and interference is demonstrated. Photo-structuring by the tightly focused sub-1 ps laser pulses realizes a direct laser writing inside dielectric materials without self-focusing. Photo-polymerization of 3D photonic crystal templates with photonic stop bands in IR-spectral region has been achieved. Holographic photo-polymerization of photonic crystal templates with counter-propagating beams was numerically modeled. Three-dimensional structures with an axial period smaller than the lateral can be recorded using the counter-propagating beam alignment. Photo-polymerization of large-area polymeric structures with a high surface-to-volume ratio is demonstrated.
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Saulius Juodkazis, Vygantas Mizeikis, Toshiaki Kondo, Kenta Kannari, Kock Khuen Seet, and Hiroaki Misawa "Three-dimensional recording inside dielectrics for photonic applications", Proc. SPIE 6883, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics, 68830I (6 February 2008);

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