Enhanced dynamic range of the Grating array based zonal wavefront sensor using a zone wise scanning method

被引：1

作者：

Kumar, Nagendra ^{[1
]}

Khare, Alika ^{[1
]}

Boruah, Bosanta R. ^{[1
]}

机构：

[1] Indian Inst Technol Guwahati, Dept Phys, Gauhati 781039, Assam, India

来源：

PHOTONIC INSTRUMENTATION ENGINEERING VII | 2020年 / 11287卷

关键词：

Wavefront Sensing; wavefront estimation; Shack-Hartmann sensor; zone wise scanning wavefront sensing; dynamic range; blocking; unblocking; spatial light modulator;

D O I：

10.1117/12.2542084

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Grating array based zonal wavefront sensor (GAZWFS), using an array of gratings implemented with a liquid crystal spatial light modulator (LCSLM) to display the gratings, offers a flexible measurement approach. But the wavefront with a large slope may not accurately be sensed by the sensor like any Shack-Hartmann type sensor. In this paper, we propose a zone wise scanning method to improve the dynamic range of GAZWFS by blocking and unblocking the individual gratings. The estimation of the wavefront and expansion of the dynamic range of GAZWFS by the zone wise scanning method is demonstrated by numerical simulation and a proof-of-principle experimental implementation.

引用

页数：6

共 50 条

[1] Multiplexed Grating Array Based Zonal Wavefront Sensor
Pathak, Biswajit
PRACTICAL HOLOGRAPHY XXXVIII:DISPLAYS, MATERIALS, AND APPLICATIONS, 2024, 12910
[2] Wide dynamic range wavefront sensor using sub-wavelength grating array
Liang, Xiaobin
Li, Yanqiu
Liu, Ke
OPTICS COMMUNICATIONS, 2015, 347 : 68 - 74
[3] Zonal Wavefront Estimation Using an Array of Hexagonal Grating Patterns
Pathak, Biswajit
Boruah, Bosanta R.
LIGHT AND ITS INTERACTIONS WITH MATTER, 2014, 1620 : 86 - 91
[4] Large dynamic range wavefront sensor based on a cylindrical microlens array
Ares, M.
Royo, S.
OPTICAL SENSING TECHNOLOGY AND APPLICATIONS, 2007, 6585
[5] Zonal wavefront sensing using a grating array printed on a polyester film
Pathak, Biswajit
Kumar, Suraj
Boruah, Bosanta R.
REVIEW OF SCIENTIFIC INSTRUMENTS, 2015, 86 (12):
[6] An Improved Programmable Grating Array Based Wavefront Sensor
Pathak, Biswajit
APPLIED OPTICAL METROLOGY IV, 2021, 11817
[7] Reduction in the Amount of Crosstalk with Reduced Number of Focal Spot Rows in a Grating Array Based Zonal Wavefront Sensor
Pathak, Biswajit
Boruah, Bosanta R.
INTERNATIONAL CONFERENCE ON OPTICS AND PHOTONICS 2015, 2015, 9654
[8] Improved wavefront estimation accuracy in a programmable grating array based wavefront sensor
Pathak, Biswajit
JOURNAL OF OPTICS, 2021, 23 (04)
[9] Expansion of dynamic range in Shack-Hartmann wavefront sensor using dual microlens array
Shinto, Hironobu
Saita, Yusuke
Nomura, Takanori
BIOPHOTONICS JAPAN 2015, 2015, 9792
[10] Deep Learning-Driven Wavefront Sensing for Grating-Array-Based Wavefront Sensor
Kumar, Nagendra
Choudhury, Pranjal
Buddha, S. S. Goutam
IEEE SENSORS JOURNAL, 2025, 25 (03) : 4769 - 4776

← 1 2 3 4 5 →