Results 1 to 10 of about 4,077 (269)

Photoacoustics with coherent light [PDF]

Photoacoustics, 2016
Since its introduction in the mid-nineties, photoacoustic imaging of biological tissue has been one of the fastest growing biomedical imaging modality, and its basic principles are now considered as well established.
Emmanuel Bossy, Sylvain Gigan
doaj   +2 more sources

Monolithic Double Resonator for Quartz Enhanced Photoacoustic Spectroscopy

Applied Sciences, 2021
A new approach for Quartz Enhanced Photoacoustic Spectroscopy is presented, based on an acoustic excitation from the outside of the prongs of a quartz tuning fork, to increase the sensitivity of the sensor.
Roman Rousseau, Diba Ayache, Nicolas Maurin, Wioletta Trzpil, Michael Bahriz, Aurore Vicet   +5 more
doaj   +1 more source

48th Winter School on Wave and Quantum Acoustics XLVIIth Winter School on Environmental Acoustics and Vibroacoustics Szczyrk, Poland, 25.02–01.03.2019

Archives of Acoustics, 2019
48th Winter School on Wave and Quantum Acoustics constituted platforms for sharing the results and achievements obtained in different branches of physical acoustics (e.g.
Winter Schools on Acoustics
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Image Quality Improvement Techniques and Assessment Adequacy in Clinical Optoacoustic Imaging: A Systematic Review

Biosensors, 2022
Optoacoustic imaging relies on the detection of optically induced acoustic waves to offer new possibilities in morphological and functional imaging. As the modality matures towards clinical application, research efforts aim to address multifactorial ...
Ioannis Dimaridis, Patmaa Sridharan, Vasilis Ntziachristos, Angelos Karlas, Leontios Hadjileontiadis   +4 more
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Phase Optimized Photoacoustic Sensing of Gas Mixtures

Applied Sciences, 2020
In this paper, we report on the progress of the auto-triggered quartz-enhanced photoacoustic spectroscopy (QEPAS) technique which operates without external frequency generators and ensures permanent locking to the current resonance frequency of the ...
Mario Mordmueller, Simon Edelmann, Markus Knestel, Wolfgang Schade, Ulrike Willer   +4 more
doaj   +1 more source

Waveform Selection Based on Discrete Prolate Spheroidal Sequences for Near-Optimal SNRs for Photoacoustic Applications

Photonics, 2023
Waveform engineering is an important topic in imaging and detection systems. Waveform design for the optimal Signal-to-Noise Ratio (SNR) under energy and duration constraints can be modelled as an eigenproblem of a Fredholm integral equation of the ...
Zuwen Sun, Natalie Baddour
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An Annular CMUT Array and Acquisition Strategy for Continuous Monitoring

Sensors
In many monitoring scenarios, repeated and operator-independent assessments are needed. Wearable ultrasound technology has the potential to continuously provide the vital information traditionally obtained from conventional ultrasound scanners, such as ...
María José Almario Escorcia, Amir Gholampour, Rob van Schaijk, Willem-Jan de Wijs, Andre Immink, Vincent Henneken, Richard Lopata, Hans-Martin Schwab   +7 more
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Realistic Ultrasound Simulations of Healthy and Osteoarthritic Cartilage

Journal of Imaging
Osteoarthritis (OA) causes irreversible cartilage damage, highlighting the need for early and sensitive assessment. Current imaging modalities are limited in detecting early-stage changes.
Roby Weeteling, Yuexin Qi, Rob P. A. Janssen, Keita Ito, Corrinus C. van Donkelaar, Richard G. P. Lopata, Min Wu   +6 more
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Exploiting Bacterial Pigmentation for Non-Destructive Detection of Seed-Borne Pathogens by Using Photoacoustic Techniques

Sensors
Seed-borne pathogens pose a significant threat to global food security. This study focuses on Curtobacterium flaccumfaciens pv. flaccumfaciens (Cff), a quarantine plant pathogen causing bacterial wilt of common beans.
Lucia Cavigli, Dario Gaudioso, Cecilia Faraloni, Giovanni Agati, Stefania Tegli   +4 more
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Adipocyte Size Evaluation Based on Photoacoustic Spectral Analysis Combined with Deep Learning Method

Applied Sciences, 2018
Adipocyte size, i.e., the cell area of adipose tissue, is correlated directly with metabolic disease risk in obese humans. This study proposes an approach of processing the photoacoustic (PA) signal power spectrum using a deep learning method to evaluate
Xiang Ma, Meng Cao, Qinghong Shen, Jie Yuan, Ting Feng, Qian Cheng, Xueding Wang, Alexandra R. Washabaugh, Nicki A. Baker, Carey N. Lumeng, Robert W. O’Rourke   +10 more
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