Fabrication of high-efficiency diffraction gratings in glass
Optics Letters, Vol. 30, Issue 4, pp. 352-354 (2005)
http://dx.doi.org/10.1364/OL.30.000352
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Abstract
We investigated a microfabrication process for optical gratings with periods of micrometer order that use ultrafast laser pulses in semiconductor-doped glass. ZnS- or PbS-doped SiO2 - Al2O3 - B2O3 - CaO - ZnO - Na2O - K2O glass was prepared by a melting method. Glass transmission diffraction gratings with a high refractive-index difference were fabricated with femtosecond laser pulses. The first-order diffraction efficiencies of these gratings were approximately 80%, and the first-order diffraction angles of these gratings were 8° at telecommunication wavelengths.
© 2005 Optical Society of America
OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(140.7090) Lasers and laser optics : Ultrafast lasers
(160.2750) Materials : Glass and other amorphous materials
(320.2250) Ultrafast optics : Femtosecond phenomena
Citation
Nobuhito Takeshima, Yoshihiro Narita, Shuhei Tanaka, Yutaka Kuroiwa, and Kazuyuki Hirao, "Fabrication of high-efficiency diffraction gratings in glass," Opt. Lett. 30, 352-354 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-4-352
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