|
Speckle contrast of the sum of N partially correlated speckle patterns |
JOSA A, Vol. 29, Issue 6, pp. 1188-1198 (2012)
http://dx.doi.org/10.1364/JOSAA.29.001188
Enhanced HTML 
Acrobat PDF (676 KB)
Abstract
In this paper a general method is presented for calculating the theoretical speckle contrast of a sum of correlated speckle patterns, motivated by the need to suppress the presence of speckle in laser projection displays. The method is applied to a specific example, where correlated speckle patterns are created by sequentially passing light through partially overlapping areas on a diffuser, before being projected onto a screen. This design makes it possible to find a simple expression for the correlation between speckle patterns. When the set of correlations involves symmetry, it is shown that the expression for the speckle contrast becomes simpler. The difference in performance between discretely and continuously varying speckle patterns is also investigated. In an example with speckle reduction by a rotating sinusoidal grating, it is found that continuous variation gives a speckle contrast that is 0.61 times the contrast obtained by discretely summing the maximum number of independent patterns.
© 2012 Optical Society of America
OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(030.6140) Coherence and statistical optics : Speckle
(030.6600) Coherence and statistical optics : Statistical optics
(050.1970) Diffraction and gratings : Diffractive optics
(110.1650) Imaging systems : Coherence imaging
(120.2040) Instrumentation, measurement, and metrology : Displays
ToC Category:
Coherence and Statistical Optics
History
Original Manuscript: October 18, 2011
Revised Manuscript: December 25, 2011
Manuscript Accepted: January 6, 2012
Published: June 1, 2012
Citation
Sigbjørn Vindenes Egge, Ulf Österberg, and Astrid Aksnes, "Speckle contrast of the sum of N partially correlated speckle patterns," J. Opt. Soc. Am. A 29, 1188-1198 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-6-1188
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Statistical properties of triple-random-modulated dynamic speckles (JOSAA)
- Three-dimensional speckle dynamics in paraxial optical systems (JOSAA)
- Branch-point-tolerant least-squares phase reconstructor (JOSAA)
- Dynamic laser speckle in complex ABCD optical systems (JOSAA)
- Uniform Scattering Patterns from Grating—Diffuser Cascades for Display Applications (AO)
Related Conference Papers
- An Experiment to observe Macroscopic Quantum Coherence in an rf-SQUID
- An Experiment to observe Macroscopic Quantum Coherence in an rf-SQUID
- A tipping pulse scheme for an rf-SQUID qubit
- A tipping pulse scheme for an rf-SQUID qubit
- Coherent Driving of the Persistent Current Qubit
- Coherent Driving of the Persistent Current Qubit
- Isolation Structures for the Solid-State Quantum-to-Classical Interface
- Isolation Structures for the Solid-State Quantum-to-Classical Interface
- Robust control of realistic quantum gates
- Robust control of realistic quantum gates
OSA is a member of 