Share Email Print
cover

Proceedings Paper

Functional optical-resolution photoacoustic microscopy with ultra-short pulse delay (Conference Presentation)

Paper Abstract

Fast switch between pulses of sufficient energy but different wavelengths plays an important role in fast functional photoacoustic imaging. Commonly used Stimulated Raman scattering through a long optical fiber can produce multiple wavelengths, but longer fiber means lower energy, which would decrease image quality. Shorter optical fiber is thus more desired for fast imaging. However, it should be noted that too short pulse separation may generate photoacoustic signals that are temporally overlapped. Here, we propose an approach to solve this overlapping problem in ultrafast PA imaging using a Fourier-domain based method. The validity of this method is confirmed through simulation firstly, and then it is applied to separate overlapped PA signals. Lastly, in vivo OR-PAM mapping of mouse ear’s sO2 photoacoustic imaging is achieved.

Paper Details

Date Published: 6 March 2020
PDF
Proc. SPIE 11240, Photons Plus Ultrasound: Imaging and Sensing 2020, 1124025 (6 March 2020); doi: 10.1117/12.2545481
Show Author Affiliations
Yingying Zhou, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Siyi Liang, City Univ. of Hong Kong (Hong Kong, China)
Lidai Wang, City Univ. of Hong Kong (Hong Kong, China)
Puxiang Lai, The Hong Kong Polytechnic Univ. (Hong Kong, China)


Published in SPIE Proceedings Vol. 11240:
Photons Plus Ultrasound: Imaging and Sensing 2020
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray