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Diamond grating waveplates
KTH, School of Engineering Sciences (SCI), Applied Physics, Laser Physics. Uppsala Univ, Sweden.
2016 (English)In: Optical Materials Express, ISSN 2159-3930, E-ISSN 2159-3930, Vol. 6, no 6, 2024-2030 p.Article in journal (Refereed) PublishedText
Abstract [en]

Two designs of diamond quarter-wave plates for CO2 lasers, based on the birefringence of sub-wavelength gratings, were manufactured and tested. In one design the grating was etched on the surface of a 300 mu m thick polycrystalline diamond substrate. The other consisted of a diamond grating hanging freely in air, suspended at the edges from a silicon frame. The free-hanging design, while more fragile, had several advantages both in terms of fabrication and performance such as a larger grating period, higher transmission, and no need for an antireflective treatment of the backside.

Place, publisher, year, edition, pages
Optical Society of America, 2016. Vol. 6, no 6, 2024-2030 p.
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-189389DOI: 10.1364/OME.6.002024ISI: 000377507100025OAI: diva2:947173

QC 20160707

Available from: 2016-07-07 Created: 2016-07-04 Last updated: 2016-07-07Bibliographically approved

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Malmström, Mikael
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