NDLI: Laboratory test results for adaptive optics using image-based wavefront sensing for remote sensing

Content Provider	IEEE Xplore Digital Library
Author	Miyamura, N.
Copyright Year	2011
Description	Author affiliation: Research Center for Advanced Science and Technology, The University of Tokyo, Japan (Miyamura, N.)
Abstract	Large aperture optical system is required for high resolution and high signal to nose ratio remote sensing observations. In this case, adaptive optics is used to compensate the wavefront aberration generated by the misalignment or the thermal deformation of the optical elements. We use a liquid crystal on silicon spatial light modulator (LCOS-SLM) for the optical wavefront control, and image-based wavefront sensing which realize simple hardware architecture. For image-based sensing, a priori information is required in addition to the acquired images. We use phase diversity (PD) wavefront sensing method which applies a priori information called PD to the optics. By using PDs and acquired images, we can estimate arbitrary wavefront aberration. In this case, the sensitivity of the acquired image to the aberration mode depends on the applied PD. We use LCOS-SLM to apply the optimal set of PDs. We constructed adaptive optics system testbed using LCOS-SLM and USB camera. In this system, we used a Shack-Hartmann wavefront sensor (SHWS) to compare the estimated wavefront aberration with the actual wavefront measured by the SHWS. The laboratory test results show that the proposed system improves the optical performance of the remote sensing sensors.
Starting Page	207
Ending Page	212
File Size	870514
Page Count	6
File Format	PDF
ISBN	9781424496860
e-ISBN	9781424496853
DOI	10.1109/ICSOS.2011.5783669
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Accuracy Estimation Phase diversity Optical imaging Adaptive optics Polynomials Optical sensors Spatial light modulator Lenses
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Laboratory Test Results for Adaptive Optics Using Image-based Wavefront Sensing for Remote Sensing

Onboard wavefront estimation using spatial light modulator as a phase diversity generator

Application of liquid crystal on silicon Spatial Light Modulator (LCOS-SLM) for manipulation and sensing

Adaptive optics for biological imaging using direct wavefront sensing

In depth analysis of Fourier-based wavefront sensors with the adaptive optics testbed LOOPS

Close-loop adaptive optics using a single spatial light modulator

Optimization of Liquid-Crystal Spatial Light Modulator for Precise Phase Generation

Study on Microscanning Hartmann Wavefront Sensor for Optical System Image Testing

Digital shearing interferometer with a liquid-crystal spatial light modulator

Laboratory test results for adaptive optics using image-based wavefront sensing for remote sensing

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Laboratory Test Results for Adaptive Optics Using Image-based Wavefront Sensing for Remote Sensing

Onboard wavefront estimation using spatial light modulator as a phase diversity generator

Application of liquid crystal on silicon Spatial Light Modulator (LCOS-SLM) for manipulation and sensing

Adaptive optics for biological imaging using direct wavefront sensing

In depth analysis of Fourier-based wavefront sensors with the adaptive optics testbed LOOPS

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Optimization of Liquid-Crystal Spatial Light Modulator for Precise Phase Generation

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Laboratory test results for adaptive optics using image-based wavefront sensing for remote sensing