Photoacoustic raster scan imaging using an optomechanical ultrasound sensor in silicon photonics

Cedric Pieters*, Wouter J. Westerveld, Hasan Mahmud-Ul-Hasan, Simone Severi, Jon Kjellman, Roelof Jansen, Veronique Rochus, Xavier Rottenberg

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Photoacoustic tomography defines new challenges for ultrasound detection compared to ultrasonography. To address these challenges, a sensitive, small, scalable, and broadband optomechanical ultrasound sensor (OMUS) has been developed. The OMUS is an on-chip optical ultrasound sensor, using optical interferometric ultrasound detection. It consists of an acoustic membrane on top of an optical ring resonator that modulates the optical ring resonance with high efficiency enabled by an innovative optomechanical waveguide. Raster scanning photoacoustic tomography has been demonstrated with a single-element OMUS. Based on performance and form factor, the OMUS combined with passive optical multiplexing may enable new applications in photoacoustic imaging.

Original languageEnglish
Title of host publicationPhotons Plus Ultrasound
Subtitle of host publicationImaging and Sensing 2022
EditorsAlexander A. Oraevsky, Lihong V. Wang
Number of pages11
ISBN (Electronic)9781510647916
Publication statusPublished - 2022
EventPhotons Plus Ultrasound: Imaging and Sensing 2022 - Virtual, Online
Duration: 20 Feb 202224 Feb 2022

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


ConferencePhotons Plus Ultrasound: Imaging and Sensing 2022
CityVirtual, Online


  • micro ring resonators
  • OMUS
  • optical sensors
  • optomechanical sensor
  • photoacoustic imaging
  • raster scanning tomography
  • silicon photonics
  • ultrasound detection


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