Harmonic phase-dispersion microscope with a Mach-Zehnder interferometer

被引：13

作者：

Ahn, A

Yang, CH

Wax, A

Popescu, G

Fang-Yen, C

Badizadegan, K

Dasari, RR

Feld, MS

机构：

[1] MIT, GR Harrison Spect Lab, Cambridge, MA 02139 USA

[2] Massachusetts Gen Hosp, Boston, MA 02114 USA

来源：

APPLIED OPTICS | 2005年 / 44卷 / 07期

关键词：

Dispersion (waves) - Imaging techniques - Microscopic examination - Optical beam splitters - Perturbation techniques - Scanning - Tomography;

D O I：

10.1364/AO.44.001188

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (C) 2005 Optical Society of America.

引用

页码：1188 / 1190

页数：3