Harmonic phase-dispersion microscope with a Mach-Zehnder interferometer.

Journal Article (Journal Article)

Harmonic phase-dispersion microscopy (PDM) is a new imaging technique in which contrast is provided by differences in refractive index at two harmonically related wavelengths. We report a new configuration of the harmonic phase-dispersion microscope in a Mach-Zehnder geometry as an instrument for imaging biological samples. Several improvements on the earlier design are demonstrated, including a single-pass configuration and acousto-optic modulators for generating the heterodyne signals without mechanical arm scanning. We demonstrate quantitative phase-dispersion images of test structures and biological samples.

Full Text

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Duke Authors

Wax, Adam P.

Cited Authors

Ahn, A; Yang, C; Wax, A; Popescu, G; Fang-Yen, C; Badizadegan, K; Dasari, RR; Feld, MS

Published Date

March 2005

Published In

Applied Optics

Volume / Issue

44 / 7

Start / End Page

1188 - 1190

PubMed ID

15765698

Electronic International Standard Serial Number (EISSN)

1539-4522

International Standard Serial Number (ISSN)

1559-128X

Digital Object Identifier (DOI)

10.1364/ao.44.001188

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