A small-angle self-mixing measurement system with improved detection resolution based on a rotatable pentagonal prism
| Autor: | Jiangli Ni, Yang Bo, Wang Chenchen, Zhang Jun |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry System of measurement 010401 analytical chemistry Pentagonal prism Resolution (electron density) System optimization 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials 010309 optics Future study Optics Interference (communication) 0103 physical sciences Prism Electrical and Electronic Engineering Physical and Theoretical Chemistry business Mixing (physics) |
| Zdroj: | Optics Communications. 429:29-34 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2018.07.082 |
| Popis: | A modified small-angle measurement system is proposed to improve the angle measurement resolution by selecting a rotatable pentagonal prism to replace the right-angle prism based on the original small-angle measurement system. In our measurement system, the right-angle side length of pentagonal prism is crucial to the measurement resolution. For the pentagonal prism with 2 cm side length, the resolution can reach 64.68 urad, while the resolution is up to 30.48 urad for the pentagonal prism with 4 cm side length. Therefore, it is possible to obtain higher measurement resolution by choosing the pentagonal prism with a larger side length within a proper range as the key optical element in the modified small-angle measurement system, so as to achieve the purpose of system optimization. In addition, the small-angle measurement system with a rotatable pentagonal prism we have designed can be helpful and referential to the future study of self-mixing interference technology with high-resolution requirements on the basis of different prisms. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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