000168957 001__ 168957
000168957 005__ 20190316235216.0
000168957 022__ $$a0003-6935
000168957 02470 $$2ISI$$a000298347200004
000168957 0247_ $$2doi$$a10.1364/AO.50.000H16
000168957 037__ $$aARTICLE
000168957 041__ $$aeng
000168957 245__ $$aSimultaneous measurement of in-plane and out-of-plane displacement derivatives using dual-wavelength digital holographic interferometry
000168957 260__ $$bOptical Society of America$$c2011
000168957 269__ $$a2011
000168957 336__ $$aJournal Articles
000168957 520__ $$aThe paper introduces a method for simultaneously measuring the in-plane and out-of-plane displacement derivatives of a deformed object in digital holographic interferometry. In the proposed method, lasers of different wavelengths are used to simultaneously illuminate the object along various directions such that a unique wavelength is used for a given direction. The holograms formed by multiple reference-object beam pairs of different wavelengths are recorded by a 3-color CCD camera with red, green, and blue channels. Each channel stores the hologram related to the corresponding wavelength and hence for the specific direction. The complex reconstructed interference field is obtained for each wavelength by numerical reconstruction and digital processing of the recorded holograms before and after deformation. Subsequently, the phase derivative is estimated for a given wavelength using two-dimensional pseudo Wigner-Ville distribution and the in-plane and out-of-plane components are obtained from the estimated phase derivatives using the sensitivity vectors of the optical configuration.
000168957 6531_ $$a3-Dimensional Displacement
000168957 6531_ $$aStrain
000168957 700__ $$0242300$$aRajshekhar, G.$$g190589
000168957 700__ $$0242293$$aGorthi, Sai Siva$$g176281
000168957 700__ $$0241647$$aRastogi, Pramod$$g106189
000168957 773__ $$j50$$k34$$qH16-H21$$tApplied Optics
000168957 8564_ $$uhttp://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-34-H16$$zURL
000168957 8564_ $$s690134$$uhttps://infoscience.epfl.ch/record/168957/files/applied_optics_color_dhi.pdf$$yn/a$$zn/a
000168957 909C0 $$0252031$$pIMAC$$xU10237
000168957 909CO $$ooai:infoscience.tind.io:168957$$particle$$pENAC$$qGLOBAL_SET
000168957 917Z8 $$x190589
000168957 917Z8 $$x190589
000168957 937__ $$aEPFL-ARTICLE-168957
000168957 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000168957 980__ $$aARTICLE