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Optimized sub-wavelength grating mirror design for mid-infrared wavelength range

Abstract : Several designs of sub-wavelength grating mirrors adapted to mid-infrared operation are reported with several percents of tolerance for the grating fabrication. These designs have been automatically optimized by the use of a genetic-based algorithm to maximize a quality factor defined to meet the requirements of a VCSEL cavity mirror. These mirrors are devoted to an integration in VCSEL operating near λ=2.3 µm, with a large bandwidth, very high reflectivity coefficient for transverse magnetic mode only, polarization selectivity and a thickness as low as 2 µm.
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Contributor : Christyves Chevallier <>
Submitted on : Friday, September 24, 2010 - 5:43:54 PM
Last modification on : Wednesday, April 8, 2020 - 4:03:59 PM
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Christyves Chevallier, Nicolas Fressengeas, Frédéric Genty, Joël Jacquet. Optimized sub-wavelength grating mirror design for mid-infrared wavelength range. Applied physics. A, Materials science & processing, Springer Verlag, 2011, 103 (4), pp.1139-1144. ⟨10.1007/s00339-010-6059-4⟩. ⟨hal-00521032⟩



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