Open AccessSpectral modulation interferometry for quantitative phase imaging
Author(s) -
Ruibo Shang,
Shichao Chen,
Chengshuai Li,
Yizheng Zhu
Publication year - 2015
Publication title -
biomedical optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.6.000473
Subject(s) - interferometry , optics , phase modulation , speckle pattern , speckle imaging , modulation (music) , electronic speckle pattern interferometry , phase (matter) , sensitivity (control systems) , physics , spectral imaging , phase noise , acoustics , quantum mechanics , electronic engineering , engineering
We propose a spectral-domain interferometric technique, termed spectral modulation interferometry (SMI), and present its application to high-sensitivity, high-speed, and speckle-free quantitative phase imaging. In SMI, one-dimensional complex field of an object is interferometrically modulated onto a broadband spectrum. Full-field phase and intensity images are obtained by scanning along the orthogonal direction. SMI integrates the high sensitivity of spectral-domain interferometry with the high speed of spectral modulation to quantify fast phase dynamics, and its dispersive and confocal nature eliminates laser speckles. The principle and implementation of SMI are discussed. Its performance is evaluated using static and dynamic objects.