Title :
Optical vortex metrology for non-destructive testing
Author :
Wang, Wei ; Hanson, Steen G.
Author_Institution :
Dept. of Mech. Eng., Heriot-Watt Univ., Edinburgh, UK
Abstract :
This paper introduces optical vortex metrology, that makes use of the phase singularities in the pseudophase of the complex signal obtained from the Riesz transform or the Laguerre-Gauss transform of speckle patterns.Here, this paper reviews the principle and demonstrate how effective use can be made of optical vortices or phase singularities for displacement , flow measurements and biological kinematic analysis.
Keywords :
biological techniques; displacement measurement; flow measurement; nondestructive testing; optical vortices; speckle; Laguerre-Gauss transform; Riesz transform; biological kinematic analysis; displacement measurement; flow measurement; nondestructive testing; optical vortex metrology; phase singularities; speckle patterns; Adaptive optics; Atom optics; Biomedical optical imaging; Metrology; Nondestructive testing; Optical interferometry; Optical vortices; Optimized production technology; Phase measurement; Speckle;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5196307
