Rapidly convergent phase-retrieval strategy for use with reflected laser light

Details Rapidly convergent phase-retrieval strategy for use with reflected laser light Rapidly convergent phase-retrieval strategy for use with reflected laser light

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003josaa..20.1013b&link_type=abstract

Optical Society of America Journal, Volume 20, Issue 6, pp. 1013-1024 (2003).

Physics

Optics

Light Reflection, Wavefront Sensors, Adaptive Optics, Optical Information Processing, Image Processing, Rough Surfaces, Optical Noise, Scintillation, Atmospheric Light Propagation, Astronomical Techniques

Scientific paper

An approach for wave-front sensing using reflected laser light from a rough object is proposed. Light from a single laser beam is split into two beams, and the beams are launched from spatially separated apertures to illuminate an object. The reflected laser light is measured in the pupil plane of a receive telescope and in a plane conjugate to the object. By modulation of one of the two illuminator beams, the intensity pattern associated with each beam, as well as the field cross product of the two beams, is measured in each plane. A phase-retrieval algorithm is formulated by using projections onto constraint sets to recover the complex field associated with each illuminator. The algorithm is found to converge rapidly to the correct solution, particularly when compared with the convergence rates of more conventional phase-retrieval approaches. The new algorithm exhibits excellent performance in strong scintillation and is very tolerant to noise, exhibiting only a very small noise gain.

Affiliated with

Also associated with

No associations

Rating

Rapidly convergent phase-retrieval strategy for use with reflected laser light does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Rapidly convergent phase-retrieval strategy for use with reflected laser light, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rapidly convergent phase-retrieval strategy for use with reflected laser light will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1525803