Results 81 to 90 of about 13,377,581 (358)
Photoacoustic transients generated by laser irradiation of thin films
Photoacoustics, 2015 Irradiation of an optically thin layer immersed in a transparent fluid with pulsed laser radiation can generate photoacoustic waves through two mechanisms. The first of these is the conventional optical heating of the layer followed by thermal expansion,
Lian Xiong +2 more
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Research on Local Sound Field Control Technology Based on Acoustic Metamaterial Triode Structure
Crystals, 2020 Cell photoacoustic detection faces the problem where the strength of the sound wave signal is so weak that it easily gets interfered by other acoustic signals.
Peng Yang +3 more
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Scientific Reports, 2021 Capitalizing on the photoacoustic effect, we developed a new fingerprint sensing system that can reveal both fingerprints and underlying vascular structures at a high spatial resolution. Our system is built on a 15 MHz linear transducer array, a research
Wenhan Zheng, Diana Lee, Jun Xia
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MEMS-Based Terahertz Photoacoustic Chemical Sensing System [PDF]
, 2016 Advancements in microelectromechanical system (MEMS) technology over the last several decades has been a driving force behind miniaturizing and improving sensor designs.
Coutu, Ronald A., Jr. +3 more
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DNA‑Directed Assembly of Photonic Nanomaterials for Diagnostic and Therapeutic Applications
Advanced Materials, EarlyView.DNA‐directed assembly offers a powerful strategy for constructing structured photonic nanomaterials with precise spatial control. This review provides a comprehensive overview of recent advancements in DNA‐assembled photonic nanomaterials for diagnostics and therapeutics, highlighting key design principles, functionalization strategies, and optical ...
Longjiang Ding +5 more
wiley +1 more source
IEEE Photonics Journal, 2019 Photoacoustic tomography is a technique to reconstruct the image of light energy absorption distribution in tissues based on the detected photoacoustic signals. In recent years, this research field has been greatly developed, and its application range is
Meng Zhou +4 more
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Quantitative Photoacoustic Imaging in the Acoustic Regime using SPIM
, 2017 While in standard photoacoustic imaging the propagation of sound waves is modeled by the standard wave equation, our approach is based on a generalized wave equation with variable sound speed and material density, respectively.
Beigl, Alexander +3 more
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Harnessing Photo‐Energy Conversion in Nanomaterials for Precision Theranostics
Advanced Materials, EarlyView.Harnessing photo‐energy conversion in nanomaterials enables precision theranostics through light‐driven mechanisms such as photoluminescence, photothermal, photoelectric, photoacoustic, photo‐triggered surface‐enhanced Raman scattering (SERS), and photodynamic processes. This review explores six fundamental principles of photo‐energy conversion, recent
Jingyu Shi +4 more
wiley +1 more source
PhotonicsThis study proposes a differential wavelength measurement method based on the electromagnetic-induced photoacoustic effect. The differential method involves irradiating the sample with multiple wavelengths and utilizing differences in absorption ...
Yijie Huang +3 more
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Thermal Diffusion of a Two Layer System
, 1995 In this paper thermal conductivity and thermal diffusivity of a two layer system is examined from the theoretical point of view. We use the one dimensional heat diffusion equation with the appropriate solution in each layer and boundary conditions at the
A. M. Mansanares +17 more
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