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Thin-Film Plate Polarizers
May 2009

BOULDER, Colo., May 20, 2009, – Saint-Gobain Crystals has introduced a range of high-performance thin-film plate polarizers optimized for use with Nd:YAG, Nd:YVO4 and Nd:YLF lasers operating at 1064, 1053, 532, 355 and 266 nm. These Alpine Research Optics-brand optics use a first-surface coating to separate orthogonal polarizations with a high extinction ratio of 200:1. They are designed to work at Brewster’s angle (typically 56° angle of incidence) and can be tilt tuned ±3° to optimize performance.

Saint-Gobain-Solid-State-Po.jpgThe optics also feature a high transmission efficiency of 96% as well as a high damage threshold and mechanical durability.

The polarizers are supplied on 28.6 × 14.3 × 3.2-mm fused silica substrates. The optics are specified to have λ/10 flatness and λ/8 wavefront distortion on transmission at 633 nm and a surface scratch-dig quality of 10-5. In addition to this standard product line, polarizers with custom sizes, shapes and performance characteristics over the wavelength range of 266 to 1550 nm can be produced upon request.

The polarizers’ optical performance and extended lifetime make them suitable for use in a wide variety of industrial applications, including micromachining and marking of metals, semiconductors, plastics and dielectrics in microelectronics, biomedical, automotive, avionics and research applications.

For more information, visit:  

Saint-Gobain Crystals
6810 Winchester Circle
Boulder, CO 80301
Phone: (303) 444-3420
Fax: (303) 444-1686

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