Jon Kjellman

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Abstract (1)

Conference paper (2)

3 records found

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

Conference paper (2022) - Cedric Pieters , Wouter J. Westerveld , Hasan Mahmud-Ul-Hasan , Simone Severi , Jon Kjellman , Roelof Jansen , Veronique Rochus , Xavier Rottenberg

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 sen ...

Opto-Mechanical Ultrasound Sensors in Silicon Photonics (invited)

Abstract (2022) - W.J. Westerveld , Md. Mahmud-Ul-Hasan , Cedric Pieters , Jon Kjellman , Rami Shnaiderman , Vasilis Ntziachristos , Roelof Jansen , Simone Severi , Veronique Rochus , Xavier Rottenberg

We present sensitive ultrasound sensors with an innovative silicon photonic optomechanical waveguide that features a 15-nm gap between movable parts [Nature Photonics 15, 341 (2021)]. Sensors are fabricated using CMOS-compatible processing and tested for biomedical imaging.

Sensitive optomechanical ultrasound sensor in a silicon photonic chip towards single-shot photoacoustic imaging with an ultrasound sensor matrix

Conference paper (2021) - Cedric Pieters , W.J. Westerveld , Xavier Rottenberg , Md. Mahmud-Ul-Hasan , Simone Severi , Rami Shnaiderman , Vasilis Ntziachristos , Margo Billen , Jon Kjellman , Roelof Jansen , Veronique Rochus

We propose a new opto-mechanical ultrasound sensor (OMUS) enabled by an innovative silicon photonics waveguide. We present experimental results up to 30 MHz, a 10-sensor array proof-of-concept and our latest findings.