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Efficient Bragg diffraction in thin semiconductor two-dimensional gratings
Abstract : Highly improved diffraction properties are demonstrated in a two-dimensional [2D] grating consisting of a transmission grating optically recorded in a semiconductor one-dimensional photonic crystal (1D-PC). Near unity internal diffraction efficiency, high wavelength selectivity, and Bragg diffraction regime operation are demonstrated when the read beam is set at Bragg incidence on the transmission grating while its wavelength corresponds to the band edge of the 3 um thick 1D-PC. When the 2D grating is grown on a Bragg mirror, a single diffracted beam is obtained, which makes the device promising for optical signal processing
Cited literature [13 references]
https://hal-iogs.archives-ouvertes.fr/hal-00553478
Contributor : Gilles Pauliat Connect in order to contact the contributor
Submitted on : Monday, February 27, 2012 - 4:52:25 PM
Last modification on : Thursday, October 21, 2021 - 5:10:28 AM
Long-term archiving on: : Monday, May 28, 2012 - 2:20:07 AM
Contributor : Gilles Pauliat Connect in order to contact the contributor
Submitted on : Monday, February 27, 2012 - 4:52:25 PM
Last modification on : Thursday, October 21, 2021 - 5:10:28 AM
Long-term archiving on: : Monday, May 28, 2012 - 2:20:07 AM
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