Results 51 to 60 of about 4,077 (269)
Photoacoustic-Based Gas Sensing: A Review
Sensors, 2020 The use of the photoacoustic effect to gauge the concentration of gases is an attractive alternative in the realm of optical detection methods. Even though the effect has been applied for gas sensing for almost a century, its potential for ultra ...
Stefan Palzer
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Application of the Photoacoustic Approach in the Characterization of Nanostructured Materials
Nanomaterials, 2022 A new generation of sensors can be engineered based on the sensing of several markers to satisfy the conditions of the multimodal detection principle. From this point of view, photoacoustic-based sensing approaches are essential. The photoacoustic effect
Mykola Isaiev +7 more
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, 2023 Time-resolved optical pump-probe experiments enable the study of complex light-matter interactions on ultrafast timescales, provided that they reach sufficient sensitivity.
Sudera, P. +3 more
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Advanced Healthcare Materials, EarlyView.This study presents an implantable, wireless, battery‐free oximeter that can continuously monitor physiologically consistent regional tissue oxygenation under dynamic changes of blood volume. This is achieved through multiwavelength photoplethysmography and validated both via Monte Carlo simulations and in vivo rat studies. Different stress events were
Anat Usatinsky +12 more
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A multi-aperture encoding scheme for increased SNR in photoacoustic Imaging
PhotoacousticsPhotoacoustic imaging creates light-induced ultrasonic signals to provide valuable information on internal body structures and tissue morphology non-invasively.
Amir Gholampour +5 more
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Optoacoustic Imaging in Inflammation
Biomedicines, 2021 Optoacoustic or photoacoustic imaging (OAI/PAI) is a technology which enables non-invasive visualization of laser-illuminated tissue by the detection of acoustic signals. The combination of “light in” and “sound out” offers unprecedented scalability with
Adrian P. Regensburger +4 more
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Noise-equivalent sensitivity of photoacoustics [PDF]
, 2013 The fundamental limitations of photoacoustic microscopy for detecting optically absorbing molecules are investigated both theoretically and experimentally.
Winkler, Amy M. +2 more
core
Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond
Advanced Materials, EarlyView.Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang +4 more
wiley +1 more source
Shape Optimization of an Open Photoacoustic Resonator
Applied Sciences, 2021 Photoacoustic (PA) measurements with open resonators usually provide poor detection sensitivity due to signal leakage at the resonator opening. We have recently demonstrated three different approaches for modelling the photoacoustic signal of open ...
Said El-Busaidy +3 more
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Inverse problem solving in semiconductor photoacoustics by neural networks
, 2021 We developed a method of inverse problem solving in semiconductor photoacoustics based on neural networks application. Simple structured neural networks, trained on a large set of data obtained by the well–known theoretical models in the 20 Hz–20 kHz ...
Markushev, Dragan D. +3 more
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