Journal
OPTICS EXPRESS
Volume 17, Issue 12, Pages 9515-9525Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.009515
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- PICS
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Ultrashort pulsed laser irradiation of bulk fused silica may result under specific energetic conditions in the self-organization of subwave-length material redistribution regions within the laser trace. The modulated structures have birefringent properties and show unusual anisotropic light scattering and reflection characteristics. We report here on the formation of waveguiding structures with remarkable polarization effects for infrared light. The photoinscription process using 800 nm femtosecond laser pulses is accompanied by third harmonic generation and polarization dependent anisotropic scattering of UV photons. The photowritten structures can be arranged in three-dimensional patterns generating complex propagation and polarization effects due to the anisotropic optical properties. (C) 2009 Optical Society of America
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