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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 9 — Mar. 20, 2011
  • pp: C340–C348

Comparisons between laser damage and optical electric field behaviors for hafnia/silica antireflection coatings

John Bellum, Damon Kletecka, Patrick Rambo, Ian Smith, Jens Schwarz, and Briggs Atherton  »View Author Affiliations

Applied Optics, Vol. 50, Issue 9, pp. C340-C348 (2011)

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We compare designs and laser-induced damage thresholds (LIDTs) of hafnia/silica antireflection (AR) coatings for 1054 nm or dual 527 nm / 1054 nm wavelengths and 0 ° to 45 ° angles of incidence (AOIs). For a 527 nm / 1054 nm , 0 ° AOI AR coating, LIDTs from three runs arbitrarily selected over three years are 20 J / cm 2 or higher at 1054 nm and < 10 J / cm 2 at 527 nm . Calculated optical electric field intensities within the coating show two intensity peaks for 527 nm but not for 1054 nm , correlating with the lower (higher) LIDTs at 527 nm ( 1054 nm ). For 1054 nm AR coatings at 45 ° and 32 ° AOIs and S and P polarizations (Spol and Ppol), LIDTs are high for Spol ( > 35 J / cm 2 ) but not as high for Ppol ( > 30 J / cm 2 at 32 ° AOI; 15 J / cm 2 at 45 ° AOI). Field intensities show that Ppol discontinuities at media interfaces correlate with the lower Ppol LIDTs at these AOIs. For Side 1 and Side 2 dual 527 nm / 1054 nm AR coatings of a diagnostic beam splitter at 22.5 ° AOI, Spol and Ppol LIDTs ( > 10 J / cm 2 at 527 nm ; > 35 J / cm 2 at 1054 nm ) are consistent with Spol and Ppol intensity behaviors.

© 2011 Optical Society of America

OCIS Codes
(140.3440) Lasers and laser optics : Laser-induced breakdown
(310.0310) Thin films : Thin films
(310.1210) Thin films : Antireflection coatings
(310.6860) Thin films : Thin films, optical properties
(310.5448) Thin films : Polarization, other optical properties

Original Manuscript: August 16, 2010
Revised Manuscript: December 16, 2010
Manuscript Accepted: December 17, 2010
Published: February 1, 2011

John Bellum, Damon Kletecka, Patrick Rambo, Ian Smith, Jens Schwarz, and Briggs Atherton, "Comparisons between laser damage and optical electric field behaviors for hafnia/silica antireflection coatings," Appl. Opt. 50, C340-C348 (2011)

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  1. J. Bellum, D. Kletecka, P. Rambo, I. Smith, M. Kimmel, J. Schwarz, M. Geissel, G. Copeland, B. Atherton, D. Smith, C. Smith, and C. Khripin, “Meeting thin film design and production challenges for laser damage resistant optical coatings at the Sandia Large Optics Coating Operation,” Proc. SPIE 7504, 75040C (2009). [CrossRef]
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  6. R. M. Wood, Laser-Induced Damage of Optical Materials(Institute of Physics Publishing, 2003). [CrossRef]
  7. J. Bellum, D. Kletecka, M. Kimmel, P. Rambo, I. Smith, J. Schwarz, B. Atherton, Z. Hobbs, and D. Smith, “Laser damage by ns and sub-ps pulses on hafnia/silica anti-reflection coatings on fused silica double-sided polished using zirconia or ceria and washed with or without an alumina wash step,” Proc. SPIE 7842, 784208 (2010). [CrossRef]

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