R
Roger J. Zemp
Researcher at University of Alberta
Publications - 248
Citations - 4040
Roger J. Zemp is an academic researcher from University of Alberta. The author has contributed to research in topics: Capacitive micromachined ultrasonic transducers & Microscopy. The author has an hindex of 32, co-authored 223 publications receiving 3451 citations. Previous affiliations of Roger J. Zemp include University of California, Davis & Washington University in St. Louis.
Papers
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Journal ArticleDOI
Sparsity-based reconstruction for super-resolved limited-view photoacoustic computed tomography deep in a scattering medium.
TL;DR: Enhanced resolution images of wires at a depth of 8.5 mm in a tissue mimicking scattering medium are obtained using a 21 MHz transducer and the sparsity-based technique generated a cleaner image with a background signal level much lower than the roughly -18 dB background signallevel of DSB.
Journal ArticleDOI
Combined photoacoustic and oblique-incidence diffuse reflectance system for quantitative photoacoustic imaging in turbid media
TL;DR: An integrated OIR and photoacoustic imaging system is reported on and improved ability to quantitatively estimate optical properties of a turbid medium is demonstrated.
Journal ArticleDOI
Fabrication of Linear Array and Top-Orthogonal-to-Bottom Electrode CMUT Arrays With a Sacrificial Release Process
Benjamin Greenlay,Roger J. Zemp +1 more
TL;DR: The microfabrication processes for sacrificial-release-based capacitive micromachined ultrasound transducer arrays are provided with an emphasis on top-orthogonal-to-bottom electrode 2-D arrays with significant promise for high-quality 3-D imaging with reduced wiring complexity compared with fully wired arrays.
Proceedings ArticleDOI
Multi-frequency CMUT arrays for imaging-therapy applications
Abhijeet Kshirsagar,Ryan Chee,Alexander Sampaleanu,Alexander Forbrich,Deepak Rishi,Walied A. Moussa,Roger J. Zemp +6 more
TL;DR: In this paper, a multi-frequency Capacitive Micromachined Ultrasound Transducer (CMUT) array with interlaced low and high-frequency elements is investigated for novel imaging-therapy applications.
Journal ArticleDOI
Label-free lipid contrast imaging using non-contact near-infrared photoacoustic remote sensing microscopy
Pradyumna Kedarisetti,Nathaniel J. M. Haven,Brendon S. Restall,Matthew T. Martell,Roger J. Zemp +4 more
TL;DR: NIR-PARS offers a promising approach to image lipid-rich samples with a simplified workflow to achieve imaging contrast from lipids without the need for exogenous stains or labels.