Jan Ornik, Leonie Gomell, Stefan F. Busch, Martin Hermans, Martin Koch
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| Fig. 1 a) Photo of wave plate 1 with an edge of a Euro coin for size comparison. b) Microscope image of the same wave plate. Bright and black stripes correspond to glass bars and air grooves, respectively. They are all of equal thickness, i.e. thickness of the wave plate. Note the difference in the width between glass bars and air grooves. |
https://www.osapublishing.org/oe/abstract.cfm?uri=oe-26-25-32631
In this paper we present four λ/2-wave plates made out of fused silica glass for operation in the terahertz frequency range. The design of the wave plates is based on form birefringence. They were fabricated by selective laser-induced etching resulting in a series of glass bars separated by air grooves. Wave plates operating at single, two and several frequencies were designed, fabricated and characterized.
© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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