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A compact system for multispectral quantitative phase imaging based on a lens-in-lens common-path interferometer
Author(s): Olga Polschikova; Alexander Machikhin; Alina Ramazanova; Vitold Pozhar
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Paper Abstract

A compact and cost-effective lens-in-lens common-path interferometer for quantitative phase imaging of objects in white light as well as in narrow spectral bands is proposed. The optical system of the interferometer includes three lenses. The first component of the interferometer consists of two lenses with the same focal length, but different diameters. The lens with the smaller diameter is installed inside the hole in the bigger diameter lens. The light wave is thus divided into two beams. The second component is a single lens. A pinhole is placed between the first and the second components in their joint focal plane. The pinhole serves as a spatial filter to form a reference wavefront from one of the beams passed through the first component. The reference and the object beams are collected by the second component, and the digital holographic pattern resulting from their interference is registered by the camera. The performance of the system is demonstrated by quantitative phase imaging of red blood cells, onion cells and nylon fiber with use of green and red laser light sources.

Paper Details

Date Published: 23 April 2019
PDF: 6 pages
Proc. SPIE 11030, Holography: Advances and Modern Trends VI, 1103005 (23 April 2019); doi: 10.1117/12.2520647
Show Author Affiliations
Olga Polschikova, Scientific and Technological Ctr. of Unique Instrumentation (Russian Federation)
Alexander Machikhin, Scientific and Technological Ctr. of Unique Instrumentation (Russian Federation)
National Research Univ. "MPEI" (Russian Federation)
Alina Ramazanova, Scientific and Technological Ctr. of Unique Instrumentation (Russian Federation)
National Research Univ. "MPEI" (Russian Federation)
Vitold Pozhar, Scientific and Technological Ctr. of Unique Instrumentation (Russian Federation)


Published in SPIE Proceedings Vol. 11030:
Holography: Advances and Modern Trends VI
Antonio Fimia; Miroslav Hrabovský; John T. Sheridan, Editor(s)

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