Single-step superresolution by interferometric imaging
Optics Express, Vol. 12, Issue 12, pp. 2589-2596 (2004)
http://dx.doi.org/10.1364/OPEX.12.002589
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Abstract
The use of vertical-cavity surface-emitting laser (VCSEL) arrays for implementation of incoherent source superresolution is presented. The method uses an interferometer setup to obtain superresolution in a single step. The novelty of the method relies on the use of a VCSEL array as the light source, which provides a set of coherent sources which are mutually incoherent. The technique accomplishes the transmission of several spatial frequency bands of the object’s spectrum in parallel by use of spatial multiplexing that occurs because of the tilted illumination of the source array. The recording process is done by interference of each frequency band with a complementary set of reference plane waves. After the reconstruction process, the resolution of any optical system can approach the natural λ/2 limit. The benefit of our system is improved modulation speed and hence more rapid image synthesis. Moreover, any desired synthetic coherent transfer function can be realized at ultrafast rates if we simply change the electrical drive of the VCSEL array.
© 2004 Optical Society of America
OCIS Codes
(090.0090) Holography : Holography
(100.0100) Image processing : Image processing
(100.2000) Image processing : Digital image processing
(100.6640) Image processing : Superresolution
(110.0110) Imaging systems : Imaging systems
ToC Category:
Research Papers
History
Original Manuscript: May 13, 2004
Revised Manuscript: May 25, 2004
Published: June 14, 2004
Citation
Vicente Mico, Zeev Zalevsky, Pascuala Garcia-Martinez, and Javier Garcia, "Single-step superresolution by interferometric imaging," Opt. Express 12, 2589-2596 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-12-2589
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