Title :
Fourier-Based Diffractive Shearing Interferometer for Wavefront Sensing
Author :
Karp, Jason H. ; Chan, Trevor K. ; Ford, Joseph E.
Author_Institution :
Univ. of California, San Diego
Abstract :
We propose a simple and compact wavefront sensor using a phase transmission grating attached to a CMOS image sensor. We present experimental results using a binary phase grating. An adaptive grating displayed by a phase modulator can extend sensor dynamic range.
Keywords :
CMOS image sensors; diffraction gratings; shearing; wavefront sensors; CMOS image sensor; Fourier-based diffractive shearing; adaptive grating; binary phase grating; compact wavefront sensor; interferometer; phase transmission grating; wavefront sensing; CMOS image sensors; Diffraction gratings; Dynamic range; Fourier transforms; Image reconstruction; Interference; Lenses; Optical interferometry; Optimized production technology; Shearing;
Conference_Titel :
Lasers and Electro-Optics Society, 2007. LEOS 2007. The 20th Annual Meeting of the IEEE
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
978-1-4244-0925-9
Electronic_ISBN :
1092-8081
DOI :
10.1109/LEOS.2007.4382328
