Analysis of Fringe Field Formed Inside LDA Measurement Volume Using Compact Two Hololens Imaging Systems
- Авторы: Ghosh A.1, Nirala A.K.1, Yadav H.L.2
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Учреждения:
- Biomedical Optics Lab, Department of Applied Physics
- Photonics Lab, Department of Physics
- Выпуск: Том 124, № 3 (2018)
- Страницы: 437-449
- Раздел: Geometrical and Applied Optics
- URL: https://ogarev-online.ru/0030-400X/article/view/165663
- DOI: https://doi.org/10.1134/S0030400X18030025
- ID: 165663
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Аннотация
We have designed and fabricated four LDA optical setups consisting of aberration compensated four different compact two hololens imaging systems. We have experimentally investigated and realized a hololens recording geometry which is interferogram of converging spherical wavefront with mutually coherent planar wavefront. Proposed real time monitoring and actual fringe field analysis techniques allow complete characterizations of fringes formed at measurement volume and permit to evaluate beam quality, alignment and fringe uniformity with greater precision. After experimentally analyzing the fringes formed at measurement volume by all four imaging systems, it is found that fringes obtained using compact two hololens imaging systems get improved both qualitatively and quantitatively compared to that obtained using conventional imaging system. Results indicate qualitative improvement of non-uniformity in fringe thickness and micro intensity variations perpendicular to the fringes, and quantitative improvement of 39.25% in overall average normalized standard deviations of fringe width formed by compact two hololens imaging systems compare to that of conventional imaging system.
Об авторах
Abhijit Ghosh
Biomedical Optics Lab, Department of Applied Physics
Автор, ответственный за переписку.
Email: abhi.photonics@gmail.com
Индия, Dhanbad, Jharkhand, 826004
A. Nirala
Biomedical Optics Lab, Department of Applied Physics
Email: abhi.photonics@gmail.com
Индия, Dhanbad, Jharkhand, 826004
H. Yadav
Photonics Lab, Department of Physics
Email: abhi.photonics@gmail.com
Индия, Jamshedpur, Jharkhand, 831014
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