000167601 001__ 167601
000167601 005__ 20190316235153.0
000167601 0247_ $$2doi$$a10.1364/AO.50.004189
000167601 022__ $$a0003-6935
000167601 02470 $$2ISI$$a000292970600055
000167601 037__ $$aARTICLE
000167601 245__ $$aSimultaneous multidimensional deformation measurements using digital holographic moiré
000167601 260__ $$bOptical Society of America$$c2011
000167601 269__ $$a2011
000167601 336__ $$aJournal Articles
000167601 520__ $$aThis paper proposes an elegant technique for the simultaneous measurement of in-plane and out-of-plane displacements of a deformed object in digital holographic interferometry. The measurement relies on simultaneously illuminating the object from multiple directions and using a single reference beam to interfere with the scattered object beams on the CCD plane. Numerical reconstruction provides the complex object wave-fields or complex amplitudes corresponding to prior and post deformation states of the object. These complex amplitudes are used to generate the complex reconstructed interference field whose real part constitutes a moiré interference fringe pattern. Moiré fringes encode information about multiple phases which are extracted by introducing a spatial carrier in one of the object beams and subsequently using a Fourier transform operation. The information about the in-plane and out-of-plane displacements is then ascertained from the estimated multiple phases using sensitivity vectors of the optical configuration.
000167601 6531_ $$afringe analysis, digital holographic moirè
000167601 700__ $$0242300$$aRajshekhar, G.$$g190589
000167601 700__ $$0242293$$aGorthi, Saisiva$$g176281
000167601 700__ $$0241647$$aRastogi, Pramod$$g106189
000167601 773__ $$j50$$k21$$q4189-4197$$tApplied Optics
000167601 8564_ $$uhttp://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-50-21-4189$$zURL
000167601 8564_ $$s1980270$$uhttps://infoscience.epfl.ch/record/167601/files/ao_digital_holographic_moire.pdf$$yPublisher's version$$zPublisher's version
000167601 909C0 $$0252031$$pIMAC$$xU10237
000167601 909CO $$ooai:infoscience.tind.io:167601$$particle$$pENAC$$qGLOBAL_SET
000167601 917Z8 $$x190589
000167601 917Z8 $$x190589
000167601 917Z8 $$x190589
000167601 937__ $$aEPFL-ARTICLE-167601
000167601 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000167601 980__ $$aARTICLE