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Spectrally encoded photoacoustic microscopy using a digital mirror device
被引:16
|作者:
Wang, Yu
[1
]
Maslov, Konstantin
[1
]
Wang, Lihong V.
[1
]
机构:
[1] Washington Univ, Opt Imaging Lab, Dept Biomed Engn, St Louis, MO 63130 USA
基金:
美国国家卫生研究院;
关键词:
photoacoustic microscopy;
spectral encoding;
Hadamard encoding;
digital mirror device;
photoacoustic spectroscopy;
wavelength multiplexing;
MULTISPECTRAL OPTOACOUSTIC TOMOGRAPHY;
IN-VIVO;
LASER;
D O I:
10.1117/1.JBO.17.6.066020
中图分类号:
Q5 [生物化学];
学科分类号:
071010 ;
081704 ;
摘要:
We have developed spectrally encoded photoacoustic microscopy using a digital mirror device for multi-wavelength tomography, which enables fast spectral imaging of optical absorption. The optical illumination wavelengths are multiplexed at a laser pulse repetition rate of similar to 2 kHz. Liquid samples, whole blood, and blood vessels in mouse ears were imaged. Compared with internal wavelength tuning of a narrow-band laser, external wavelength tuning based on a digital mirror device improves the data acquisition speed of spectral photoacoustic microscopy. Compared with external wavelength scanning of a wide-band laser with the same pulse energy, spectral encoding improves the signal-to-noise ratio. (C) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.JBO.17.6.066020]
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