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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 1, Iss. 2 — Jun. 1, 2011
  • pp: 252–258

Titanium oxide sol-gel films with tunable refractive index

Roland Himmelhuber, Palash Gangopadhyay, Robert A. Norwood, Douglas A. Loy, and Nasser Peyghambarian  »View Author Affiliations

Optical Materials Express, Vol. 1, Issue 2, pp. 252-258 (2011)

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Glycidylmethacrylate and propylene oxide were used in the epoxide initiated formation of titanium oxide sols which were spun to form thin films. Glycidylmethacrylate can be used to tune the refractive index of the resulting composite and allowed us to photo-pattern the material. The refractive index of the films can be controlled between 1.76 and 2.05 at 589 nm. The thicknesses of the films ranged between 80 and 200 nm and the rms roughness below 2 nm. The films were characterized by atomic force microscopy (AFM), electric force microscopy (EFM), x-ray photoelectron spectroscopy (XPS) and ellipsometry, among other techniques.

© 2011 OSA

OCIS Codes
(160.3130) Materials : Integrated optics materials
(160.4670) Materials : Optical materials
(160.4760) Materials : Optical properties
(160.6060) Materials : Solgel
(310.1860) Thin films : Deposition and fabrication
(310.6860) Thin films : Thin films, optical properties

ToC Category:

Original Manuscript: April 22, 2011
Revised Manuscript: May 20, 2011
Manuscript Accepted: May 23, 2011
Published: May 25, 2011

Roland Himmelhuber, Palash Gangopadhyay, Robert A. Norwood, Douglas A. Loy, and Nasser Peyghambarian, "Titanium oxide sol-gel films with tunable refractive index," Opt. Mater. Express 1, 252-258 (2011)

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