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A common-path interferometer including integrated single-prism beam shaping |
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| Authors: | Christoph Gerhard Jörn Heine Benjamin Bahr Stephan Brückner Wolfgang Viöl |
| Affiliation: | 1. Clausthal University of Technology, Institute of Energy Research and Physical Technologies, Leibnizstraße 4, 38678 Clausthal-Zellerfeld, Germany;2. Fraunhofer Institute for Surface Engineering and Thin Films, Application Center for Plasma and Photonic, Von-Ossietzky-Straße 99, 37085 Göttingen, Germany;3. University of Applied Sciences and Arts, Laboratory of Laser and Plasma Technologies, Von-Ossietzky-Straße 99, 37085 Göttingen, Germany;4. University of Cambridge, Department of Applied Mathematics and Theoretical Physics, Wilberforce Road, Cambridge CB3 0WA, United Kingdom |
| Abstract: | In this work, a common-path interferometer including integrated single-prism beam shaping is presented. Both theoretical considerations and experimental results on single-prism shaping of elliptical and circular laser beams were performed. Based on a single-prism beam shaper, a common-path interferometer without any classical beam splitter device was assembled and characterised. It is shown that the presented setup provides well-evaluable interference patterns with a Michelson contrast of 0.42–0.45. |
| Keywords: | Single-prism beam shaping Beam compression Diode lasers HeNe lasers Common-path interferometry Optical metrology |
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