DMD-encoded spectral photoacoustic microscopy

Yu Wang; Konstantin Maslov; Lihong V. Wang

doi:10.1117/12.910521

23 February 2012 DMD-encoded spectral photoacoustic microscopy

Yu Wang, Konstantin Maslov, Lihong V. Wang

Proceedings Volume 8223, Photons Plus Ultrasound: Imaging and Sensing 2012; 822312 (2012) https://doi.org/10.1117/12.910521
Event: SPIE BiOS, 2012, San Francisco, California, United States

Abstract

We present a spectrally encoded photoacoustic microscope based on a digital mirror device (DMD). It enables fast spatially resolved spectral measurements of optical absorption. The imaging system can quickly tune the laser illumination spectrum at the laser pulse repetition rate of 2 kHz. To demonstrate multi-wavelength absorption measurements, we imaged optically absorbing solution phantom. Compared with spectral scanning, spectral encoding recovers chromophore absorption spectra with improved accuracy by enhancing photoacoustic amplitude signal-to-noise ratio.

Citation Download Citation

Yu Wang, Konstantin Maslov, and Lihong V. Wang "DMD-encoded spectral photoacoustic microscopy", Proc. SPIE 8223, Photons Plus Ultrasound: Imaging and Sensing 2012, 822312 (23 February 2012); https://doi.org/10.1117/12.910521

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