Dynamic correction of the laser beam coordinate in fabrication of large-sized diffractive elements for testing aspherical mirrors
| Autor: | Victor P. Korolkov, Alexander G. Poleshchuk, Vadim V. Cherkashin, R. V. Shimansky |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Physics Fabrication business.industry James Webb Space Telescope Holography Condensed Matter Physics Laser 01 natural sciences Automation law.invention 010309 optics Optics law 0103 physical sciences Electrical and Electronic Engineering Polar coordinate system Photonics business Instrumentation Laser beams |
| Zdroj: | Optoelectronics, Instrumentation and Data Processing. 53:255-263 |
| ISSN: | 1934-7944 8756-6990 |
| DOI: | 10.3103/s8756699017030098 |
| Popis: | This paper presents a method of improving the accuracy of a circular laser system in fabrication of large-diameter diffractive optical elements by means of a polar coordinate system and the results of their use. An algorithm for correcting positioning errors of a circular laser writing system developed at the Institute of Automation and Electrometry, SB RAS, is proposed and tested. Highprecision synthesized holograms fabricated by this method and the results of using these elements for testing the 6.5 m diameter aspheric mirror of the James Webb space telescope (JWST) are described.. |
| Databáze: | OpenAIRE |
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