Noise-reduced optical ultrasound sensor via signal duplication for photoacoustic microscopy

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

7 Scopus Citations
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Author(s)

  • Yizhi Liang
  • Jin-Wei Liu
  • Lidai Wang
  • Long Jin
  • Bai-Ou Guan

Detail(s)

Original languageEnglish
Pages (from-to)2665-2668
Journal / PublicationOptics Letters
Volume44
Issue number11
Online published17 May 2019
Publication statusPublished - 1 Jun 2019

Abstract

Fiber-laser-based ultrasound sensors have attracted great interest because of their applications in compact and endoscopic imaging modalities. The noises of such an ultrasound sensor may originate from its light source, optical amplifier, photodetector, and data acquisition card. Here we present an optical signal duplication technique that can increase the signal-to-noise ratio by 1.6–2.4 times. Furthermore, this technique does not require multiple signal excitations in a single voxel and, thus, allows for a high imaging speed in most applications. We demonstrate the optical signal duplication technique in all-optical laser-scanning photoacoustic microscopy. In vivo mi-crovascular imaging shows that the noise-reduced sensor can enhance the contrast-to-noise ratio by 3.5 dB.

Citation Format(s)

Noise-reduced optical ultrasound sensor via signal duplication for photoacoustic microscopy. / Liang, Yizhi; Liu, Jin-Wei; Wang, Lidai et al.
In: Optics Letters, Vol. 44, No. 11, 01.06.2019, p. 2665-2668.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review