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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 28 — Oct. 1, 2006
  • pp: 7269–7272

Measurement of a low-absorption sample of OH-reduced fused silica

Stefan Hild, Harald Lück, Walter Winkler, Ken Strain, Hartmut Grote, Joshua Smith, Michaela Malec, Martin Hewitson, Benno Willke, James Hough, and Karsten Danzmann  »View Author Affiliations


Applied Optics, Vol. 45, Issue 28, pp. 7269-7272 (2006)
http://dx.doi.org/10.1364/AO.45.007269


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Abstract

Low-absorption optics made of OH-reduced fused silica are a key technology for future gravitational wave detectors such as the Advanced LIGO. We developed a sensitive method to measure the absorption inside the beam splitter of the GEO 600, taking advantage of the effect of thermal lensing. Using this method, we derived a bulk absorption of less than 0.25 ppm / cm for a piece of Suprasil 311 SV at a wavelength of 1064 nm . To the best of our knowledge, this is the lowest value of light absorption inside fused silica reported so far in the literature.

© 2006 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(160.2750) Materials : Glass and other amorphous materials
(350.6830) Other areas of optics : Thermal lensing

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: February 21, 2006
Manuscript Accepted: April 11, 2006

Citation
Stefan Hild, Harald Lück, Walter Winkler, Ken Strain, Hartmut Grote, Joshua Smith, Michaela Malec, Martin Hewitson, Benno Willke, James Hough, and Karsten Danzmann, "Measurement of a low-absorption sample of OH-reduced fused silica," Appl. Opt. 45, 7269-7272 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-28-7269

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