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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 19 — Oct. 1, 2012
  • pp: 4095–4097

Fluoroalkyl-grafted mesoporous silica antireflective films with enhanced stability in vacuum

Jinghua Sun, Baohu Wu, Hongbao Jia, Dong Wu, and Yao Xu  »View Author Affiliations


Optics Letters, Vol. 37, Issue 19, pp. 4095-4097 (2012)
http://dx.doi.org/10.1364/OL.37.004095


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Abstract

A new antireflective silica film with closed mesopores was successfully prepared for the optical elements used in vacuum of a high-power laser system. The ordered cagelike mesopores were formed with the direction of surfactant F127 and then closed by long-chain fluoroalkylsilane. The grazing incident x-ray diffraction and grazing incident small-angle x-ray scattering results indicated that the mesopores in film constructed a body-center cubic structure. The films exhibited excellent transmittance as high as 99.98% on quartz substrate. After a 1-month antipollution test with polydimethylsiloxane in vacuum, the decrease of transmittance was small as 0.02%. This film had a high laser-induced damage threshold of above 28 J / cm 2 at 1 ns laser pulse of 1053 nm wavelength.

© 2012 Optical Society of America

OCIS Codes
(160.6030) Materials : Silica
(310.1210) Thin films : Antireflection coatings
(310.1860) Thin films : Deposition and fabrication

ToC Category:
Thin Films

History
Original Manuscript: July 24, 2012
Revised Manuscript: August 22, 2012
Manuscript Accepted: August 22, 2012
Published: September 26, 2012

Citation
Jinghua Sun, Baohu Wu, Hongbao Jia, Dong Wu, and Yao Xu, "Fluoroalkyl-grafted mesoporous silica antireflective films with enhanced stability in vacuum," Opt. Lett. 37, 4095-4097 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-19-4095


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