Harmonic phase-dispersion microscope with a Mach-Zehnder interferometer.
Published
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
Duke Authors
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
Volume / Issue
- 44 / 7
Start / End Page
- 1188 - 1190
PubMed ID
- 15765698
Pubmed Central 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
Language
- eng