000201101 001__ 201101
000201101 005__ 20180913062636.0
000201101 0247_ $$2doi$$a10.1117/12.2037799
000201101 020__ $$a978-0-8194-9862-5
000201101 022__ $$a0277-786X
000201101 02470 $$2ISI$$a000336804200003
000201101 037__ $$aCONF
000201101 245__ $$aPortable advanced off-axis camera for quantitative phase microscopy
000201101 260__ $$bSpie-Int Soc Optical Engineering$$c2014$$aBellingham
000201101 269__ $$a2014
000201101 300__ $$a5
000201101 336__ $$aConference Papers
000201101 490__ $$aProceedings of SPIE
000201101 520__ $$aWe propose and experimentally demonstrate a device in which common-path interferometry combined with off-axis holographic geometry is used to realize a digital holographic camera which can be attached to the camera port of a conventional transmission microscope for complex wavefront analysis. A thick transmission volume grating recorded holographically into thick photosensitive glass splits the beam containing the sample information in two beams. The untouched transmitted beam creates the sample arm of the interferometer. The Bragg diffracted order of the grating is spectrally and spatially filtered by diffraction to generate a clean reference beam. Double passing the diffracted order through the grating using a retroreflector device provides filtering in two dimensions. The spatial filtering done by the grating which works based on high angular selectivity of thick volume gratings, reduces the alignment spatial sensitivity which is an advantage over the conventional spatial filtering done by pinholes. Besides, using a second thick grating, we introduce a desired coherence plane tilt in the reference beam which is sufficient to create high-visibility interference over the entire field of view. The full-field off-axis interferograms are created from which the amplitude and phase can be reconstructed. The advantage of the proposed camera is the insensitivity to the alignment, thus can be the basis for a standalone camera mountable on a standard optical microscope.
000201101 6531_ $$aDiffraction gratings
000201101 6531_ $$aDigital holographic microscopy
000201101 6531_ $$aPortable camera
000201101 6531_ $$aOff-axis full-field imaging
000201101 6531_ $$aPhase microscopy
000201101 700__ $$aMonemhaghdoust, Z.
000201101 700__ $$0240009$$g104931$$aDepeursinge, C.
000201101 700__ $$aMoser, C.
000201101 7112_ $$dFEB 03-06, 2014$$cSan Francisco, CA$$aConference on Three-Dimensional and Multidimensional Microscopy - Image Acquisition and Processing XXI
000201101 720_1 $$aBrown, Tg$$eed.
000201101 720_1 $$aCogswell, Cj$$eed.
000201101 720_1 $$aWilson, T.$$eed.
000201101 773__ $$j8949$$tThree-Dimensional And Multidimensional Microscopy: Image Acquisition And Processing Xxi
000201101 909C0 $$xU10346$$0252008$$pLOA
000201101 909CO $$pconf$$pSTI$$ooai:infoscience.tind.io:201101
000201101 917Z8 $$x136609
000201101 937__ $$aEPFL-CONF-201101
000201101 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000201101 980__ $$aCONF