Zonal wavefront sensing using a grating array printed on a polyester film

Journal Article · Tue Dec 15 00:00:00 EST 2015 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4937619· OSTI ID:22482664

Pathak, Biswajit; Kumar, Suraj ^[1]

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1. Department of Applied Sciences, Gauhati University, Guwahati, Assam 781014 (India)

In this paper, we describe the development of a zonal wavefront sensor that comprises an array of binary diffraction gratings realized on a transparent sheet (i.e., polyester film) followed by a focusing lens and a camera. The sensor works in a manner similar to that of a Shack-Hartmann wavefront sensor. The fabrication of the array of gratings is immune to certain issues associated with the fabrication of the lenslet array which is commonly used in zonal wavefront sensing. Besides the sensing method offers several important advantages such as flexible dynamic range, easy configurability, and option to enhance the sensing frame rate. Here, we have demonstrated the working of the proposed sensor using a proof-of-principle experimental arrangement.

• OSTI ID: 22482664
• Journal Information: Review of Scientific Instruments, Vol. 86, Issue 12; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CAMERAS
DIFFRACTION GRATINGS
FABRICATION
FILMS
FOCUSING
LENSES
POLYESTERS
SENSORS
SHEETS