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Proceedings Paper

Femtosecond-laser writing of tracks with depressed refractive index in crystals
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Paper Abstract

Fabrication and characterization of tracks in calcium fluoride and crystalline quartz are described. These tracks were created using ultrashort near-infrared (NIR) laser pulses in a manner similar to that of writing waveguides in glasses. Unlike the tracks in glasses the laser-written tracks in crystals have the depression of the refractive index. The magnitude of the depression is about 0.01 or more that may enable creation of high-contrast structures in crystals. Depending on the writing conditions the tracks' diameter may vary from around 1 micrometer to 10 micrometers.

Paper Details

Date Published: 15 April 2003
PDF: 7 pages
Proc. SPIE 4941, Laser Micromachining for Optoelectronic Device Fabrication, (15 April 2003); doi: 10.1117/12.470166
Show Author Affiliations
Alexander M. Streltsov, Corning Inc. (United States)

Published in SPIE Proceedings Vol. 4941:
Laser Micromachining for Optoelectronic Device Fabrication

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