Reference : Design, manufacturing, and performance analysis of mid-infrared achromatic half-wave pla...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/131602
Design, manufacturing, and performance analysis of mid-infrared achromatic half-wave plates with diamond subwavelength gratings
English
Delacroix, Christian mailto [Université de Liège - ULg > Département de physique > Optique - Hololab >]
Forsberg, Pontus [> >]
Karlsson, Mikael [> >]
Mawet, Dimitri [> >]
Absil, Olivier mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Hanot, Charles [> >]
Surdej, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Habraken, Serge mailto [Université de Liège - ULg > Département de physique > Optique - Hololab >]
1-Aug-2012
Applied Optics
Optical Society of America
51
5897
Yes (verified by ORBi)
International
0003-6935
1539-4522
Washington
DC
[en] In this paper, we present an elegant solution for creating robust monolithic achromatic half-wave plates (HWPs) for the infrared, based on the form birefringence of subwavelength gratings (SWGs) made out of diamond. We use the rigorous coupled wave analysis to design the gratings. Our analysis shows that diamond, besides its outstanding physical and mechanical properties, is a suitable substrate to manufacture mid-infrared HWPs, thanks to its high refractive index which allows etching SWGs with lower aspect ratio. Based on our optized design, we manufactured a diamond HWP for the 11-13.2 µm region, with an estimated mean retardance ~3.143 ± 0.061 rad (180.08 ± 3.51°). In addition, an antireflective grating was etched on the backside of the wave plate, allowing a total tansmittance between 89 and 95% over the band.
Researchers ; Professionals
http://hdl.handle.net/2268/131602
10.1364/AO.51.005897
http://adsabs.harvard.edu/abs/2012ApOpt..51.5897D
This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-51-24-5897. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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