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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 12 — Apr. 20, 2013
  • pp: 2792–2799

Inversion of photon correlation spectroscopy based on truncated singular value decomposition and cascadic multigrid technology

Yajing Wang, Jin Shen, Liu Wei, Zhenhai Dou, and Shanshan Gao  »View Author Affiliations


Applied Optics, Vol. 52, Issue 12, pp. 2792-2799 (2013)
http://dx.doi.org/10.1364/AO.52.002792


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Abstract

For the low accuracy of single-scale inversion method in photon correlation spectroscopy technology, a cascadic multigrid (CMG)- truncated singular value decomposition (TSVD) inversion method that combines the TSVD regularization with CMG technology is proposed. This method decomposes the original problem into several subproblems in different scale grid space. According to the particle sizes inverted from the coarsest scale to the finest scale, the solution of an original inversion problem can be obtained. For the inversion of each subproblem, TSVD method is used. The simulation and experimental data were respectively inverted by TSVD and CMG-TSVD methods. The inversion results demonstrate that the CMG-TSVD method has higher accuracy, more strong noise immunity and better smoothness than the TSVD method.

© 2013 Optical Society of America

OCIS Codes
(290.3200) Scattering : Inverse scattering
(290.3700) Scattering : Linewidth
(290.5820) Scattering : Scattering measurements
(290.5850) Scattering : Scattering, particles
(300.6170) Spectroscopy : Spectra

ToC Category:
Scattering

History
Original Manuscript: November 2, 2012
Manuscript Accepted: December 3, 2012
Published: April 17, 2013

Citation
Yajing Wang, Jin Shen, Liu Wei, Zhenhai Dou, and Shanshan Gao, "Inversion of photon correlation spectroscopy based on truncated singular value decomposition and cascadic multigrid technology," Appl. Opt. 52, 2792-2799 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-12-2792

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