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On-chip differential interference contrast (DIC) phase imager and beam profiler based on Young's interference

Cui, Xiquan and Lew, Matthew and Heng, Xin and Yang, Changhuei (2007) On-chip differential interference contrast (DIC) phase imager and beam profiler based on Young's interference. In: Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues V. Proceedings of SPIE. No.6441. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. no. 64411F. ISBN 9780819465542. http://resolver.caltech.edu/CaltechAUTHORS:20180716-111252346

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Abstract

In this article, we will present a novel differential interference contrast (DIC) phase imaging device based on Young's interference. It is mainly based on either two or four nano apertures defined in an optically opaque aluminum film on a CMOS imaging sensor chip. It provides linear and disentangled differential phase and intensity images simultaneously. Furthermore, it's simple, free of bulky optical elements and compatible to the planar micro fabrication process. All of these features make it a promising device for the on-chip high resolution DIC phase imaging and beam profiling. The fabrication and operation of the device is explained in details. The performance is evaluated theoretically and is verified experimentally by examining the phase and intensity profile of a Gaussian beam and an optical vortex. The 2D quantitive differential phase distribution of an optical vortex has been recorded directly by our device with 1μm resolution.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.699920DOIArticle
ORCID:
AuthorORCID
Yang, Changhuei0000-0001-8791-0354
Additional Information:© 2007 Society of Photo-Optical Instrumentation Engineers (SPIE). We are grateful for the generous help from Professor Axel Scherer. The assistance from Caltech Watson cleanroom is well appreciated. This project is funded by DARPA’s center for optofluidic integration and Coulter Foundation Career Award.
Funders:
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Wallace H. Coulter FoundationUNSPECIFIED
Subject Keywords:Optofluidics, Biophotonics, Nanophotonics, Microfluidics, Differential interference contrast microscopy, Beam profiler
Record Number:CaltechAUTHORS:20180716-111252346
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180716-111252346
Official Citation:Xiquan Cui, Matthew Lew, Xin Heng, Changhuei Yang, "On-chip differential interference contrast (DIC) phase imager and beam profiler based on Young's interference", Proc. SPIE 6441, Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues V, 64411F (19 February 2007); doi: 10.1117/12.699920; https://doi.org/10.1117/12.699920
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87882
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:16 Jul 2018 22:46
Last Modified:16 Jul 2018 22:46

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