Strong Bragg gratings photoinduced by 633-nm illumination in evaporated As2Se3 thin films
Optics Letters, Vol. 28, Issue 6, pp. 459-461 (2003)
http://dx.doi.org/10.1364/OL.28.000459
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Abstract
Bragg gratings are used in several photonic devices to reflect, and thus to isolate, specific wavelengths of light. Gratings can be photoinduced in chalcogenide glasses by illumination of bandgap light in an interference pattern. We used holographic interferometry to create Bragg gratings in amorphous As2Se3 thin films with a period of 0.56μm by illumination with 633-nm light. The quality of the gratings was tested in real time, and refractive-index modulations as high as 0.037 were measured. These gratings were found to be stable over a period of several months if they were kept in the dark.
© 2003 Optical Society of America
[Optical Society of America ]
OCIS Codes
(050.7330) Diffraction and gratings : Volume gratings
(160.2750) Materials : Glass and other amorphous materials
(310.6860) Thin films : Thin films, optical properties
Citation
Travis G. Robinson, Ray G. DeCorby, James N. McMullin, Chris J. Haugen, Safa O. Kasap, and Dancho Tonchev, "Strong Bragg gratings photoinduced by 633-nm illumination in evaporated As2Se3 thin films," Opt. Lett. 28, 459-461 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-6-459
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