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Advances in Optics and Photonics

Advances in Optics and Photonics

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  • Editor: Govind Agrawal
  • Vol. 6, Iss. 1 — Mar. 31, 2014

Diffraction phase microscopy: principles and applications in materials and life sciences

Basanta Bhaduri, Chris Edwards, Hoa Pham, Renjie Zhou, Tan H. Nguyen, Lynford L. Goddard, and Gabriel Popescu  »View Author Affiliations


Advances in Optics and Photonics, Vol. 6, Issue 1, pp. 57-119 (2014)
http://dx.doi.org/10.1364/AOP.6.000057


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Abstract

The main obstacle in retrieving quantitative phase with high sensitivity is posed by the phase noise due to mechanical vibrations and air fluctuations that typically affect any interferometric system. In this paper, we review diffraction phase microscopy (DPM), which is a common-path quantitative phase imaging (QPI) method that significantly alleviates the noise problem. DPM utilizes a compact Mach–Zehnder interferometer to combine several attributes of current QPI methods. This compact configuration inherently cancels out most mechanisms responsible for noise and is single-shot, meaning that the acquisition speed is limited only by the speed of the camera employed. This technique is also nondestructive and does not require staining or coating of the specimen. This unique collection of features enables the DPM system to accurately monitor the dynamics of various nanoscale phenomena in a wide variety of environments. The DPM system can operate in both transmission and reflection modes in order to accommodate both transparent and opaque samples, respectively. Thus, current applications of DPM include measuring the dynamics of biological samples, semiconductor wet etching and photochemical etching processes, surface wetting and evaporation of water droplets, self-assembly of nanotubes, expansion and deformation of materials, and semiconductor wafer defect detection. Finally, DPM with white light averages out much of the speckle background and also offers potential for spectroscopic measurements.

© 2014 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(110.0180) Imaging systems : Microscopy
(120.3890) Instrumentation, measurement, and metrology : Medical optics instrumentation
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(110.3175) Imaging systems : Interferometric imaging

ToC Category:
Imaging Systems

History
Original Manuscript: July 9, 2013
Revised Manuscript: January 5, 2014
Manuscript Accepted: January 27, 2014
Published: March 26, 2014

Virtual Issues
(2014) Advances in Optics and Photonics

Citation
Basanta Bhaduri, Chris Edwards, Hoa Pham, Renjie Zhou, Tan H. Nguyen, Lynford L. Goddard, and Gabriel Popescu, "Diffraction phase microscopy: principles and applications in materials and life sciences," Adv. Opt. Photon. 6, 57-119 (2014)
http://www.opticsinfobase.org/aop/abstract.cfm?URI=aop-6-1-57

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