Doppler flow imaging of cytoplasmic streaming using spectral domain phase microscopy

被引：51

作者：

Choma, Michael A. ^{[1
]}

Ellerbee, Audrey K. ^{[1
]}

Yazdanfar, Siavash ^{[1
]}

Izatt, Joseph A. ^{[1
]}

机构：

[1] Duke Univ, Dept Biomed Engn, Durham, NC 27708 USA

来源：

JOURNAL OF BIOMEDICAL OPTICS | 2006年 / 11卷 / 02期

关键词：

optical coherence tomography; doppler; microscopy; cytoplasm; interference microscopy; noise in imaging systems;

D O I：

10.1117/1.2193167

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Spectral domain phase microscopy (SDPM) is a function extension of spectral domain optical coherence tomography. SDPM achieves exquisite levels of phase stability by employing common-path interferometry. We discuss the theory and limitations of Doppler flow imaging using SDPM, demonstrate monitoring the thermal contraction of a glass sample with nanometer per second velocity sensitivity, and apply this technique to measurement of cytoplasmic streaming in an Amoeba proteus pseudopod. We observe reversal of cytoplasmic flow induced by extracellular CaCl2, and report results that suggest parabolic flow of cytoplasm in the A. proteus pseudopod. (c) 2006 Society of Photo-Optical Instrumentation Engineers.

引用

页数：8

共 33 条

[1] Detection of neural activity using phase-sensitive optical low-coherence reflectometry [J].