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Self-reference line-dispersion interferometric microscopy

delete2017-03-30
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PRE
AI
P
Poorya Hosseini
N
Niyom Lue *
Z
Zahid Yaqoob
R
Ramachandra R. Dasari
P
Peter T. C. So
DOI:10.1063/1.4979461delete
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Abstract

Abstract

En 中文
We have developed a line-scanning interferometric microscope capable of measuring the quantitative phase over a wide continuous spectrum. The sample is illuminated with a spatially coherent broadband light source shaped into a line beam that interferes with itself in a Michelson configuration, coupled with a grating-based spectrometer. The spatial modulation of the interference pattern in the direction orthogonal to the wavelength axis in the spectrograph image plane allows obtaining the spectral quantitative phase along the line illumination in a single measurement. We show the feasibility of the technique by quantifying the refractive index of polystyrene beads immersed in oil and the dispersive properties of live cells over the visible spectrum. Published by AIP Publishing.
Keywords:
DIGITAL HOLOGRAPHIC MICROSCOPY
RED-BLOOD-CELLS
PHASE MICROSCOPY
REFRACTIVE-INDEX
SPECTROSCOPY
HEMOGLOBIN
DYNAMICS
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Journal

Applied Physics Letters cover
Applied Physics Letters
IF:
3.6
Papers:
10.4W
Citations:
17.8W

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