Results 161 to 170 of about 1,847 (202)
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2016
The optical imaging techniques available for clinical skin imaging are fundamentally limited in their depth scope to a few hundred microns and face difficulties in their functional and molecular imaging capabilities. Furthermore, histopathological analysis is still the only method of choice to accurately diagnose several skin diseases.
Schwarz, M. +3 more
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The optical imaging techniques available for clinical skin imaging are fundamentally limited in their depth scope to a few hundred microns and face difficulties in their functional and molecular imaging capabilities. Furthermore, histopathological analysis is still the only method of choice to accurately diagnose several skin diseases.
Schwarz, M. +3 more
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Laser Optoacoustic Spectroscopy
Optica Acta: International Journal of Optics, 1986(1986). Laser Optoacoustic Spectroscopy. Optica Acta: International Journal of Optics: Vol. 33, No. 11, pp. 1338-1338.
Vladimir P. Zharov, Vladilen S. Letokhov
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Contemporary Physics, 1979
Abstract The generation of acoustic signals following optical absorption in gases and solids is described. Important parameters in the design of cells and their relationships to detection sensitivity and limiting noise signals are discussed. Examples are given of important applications of the optoacoustic effect in pollution monitoring, the measurement
M. J. Colles +2 more
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Abstract The generation of acoustic signals following optical absorption in gases and solids is described. Important parameters in the design of cells and their relationships to detection sensitivity and limiting noise signals are discussed. Examples are given of important applications of the optoacoustic effect in pollution monitoring, the measurement
M. J. Colles +2 more
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Der Radiologe, 2016
Imaging modalities play an increasing role in today's medical diagnostics. Among them, ultrasound (US) is one the most widespread techniques although it has relatively poor soft tissue contrast. Furthermore, US is poorly suited as a modality for molecular imaging (MI).Methods such as Doppler and contrast-enhanced US (CEUS) allow functional imaging of ...
M, Fournelle, S, Tretbar
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Imaging modalities play an increasing role in today's medical diagnostics. Among them, ultrasound (US) is one the most widespread techniques although it has relatively poor soft tissue contrast. Furthermore, US is poorly suited as a modality for molecular imaging (MI).Methods such as Doppler and contrast-enhanced US (CEUS) allow functional imaging of ...
M, Fournelle, S, Tretbar
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Optimal optoacoustic detector design
Applied Optics, 1975Optoacoustic detectors are used to measure pressure changes occurring in enclosed gases, liquids, or solids being excited by intensity or frequency modulated electromagnetic radiation. Radiation absorption spectra, collisional relaxation rates, substance compositions, and reactions can be determined from the time behavior of these pressure changes ...
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Pulsed optoacoustic spectroscopy of NADH
Analytical Biochemistry, 1981Abstract Optoacoustic spectroscopy is a potentially powerful tool for the determination of trace and ultratrace components of biochemical interest. We derive here an abbreviated theory of pulsed optoacoustic spectroscopy, describe the experimental apparatus, and report on the performance in the determination of NADH.
M R, Fisher, N S, Nogar, S M, Schuster
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Annual Meeting Optical Society of America, 1985
If a spectrophone containing an infrared active gas is placed near a cold surface and the path between the two is interrupted, the periodic flow of radiation from the spectrophone causes a sound wave to be produced. Experiments were done with a 3.4- × 1.7-cm diam acoustic cell that was fitted with thallium bromoiodide windows.
G. J. Diebold +2 more
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If a spectrophone containing an infrared active gas is placed near a cold surface and the path between the two is interrupted, the periodic flow of radiation from the spectrophone causes a sound wave to be produced. Experiments were done with a 3.4- × 1.7-cm diam acoustic cell that was fitted with thallium bromoiodide windows.
G. J. Diebold +2 more
openaire +1 more source
Blood Optoacoustic Stimulation (BOAS)
Optica Biophotonics Congress 2025Photoacoustic is a precise non-genetic neural stimulation method. To avoid surgery and exogenous implants, we show blood as an effective endogenous absorber for PA stimulation in vivo. This study marks the first PA brain stimulation using endogenous absorbers.
Guo Chen +3 more
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Laser Optoacoustic Microspectroscopy
1986Spectra of microscopic objects play an important role, for instance, in material, science and the technology of optical and electronic devices. Here, OAS complements the potentials of conventional methods of microscopy (optical acoustic, electronic, etc.) and in some cases it enables us to obtain quite new information about the microstructure of ...
Vladimir P. Zharov, Vladilen S. Letokhov
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Photons Plus Ultrasound: Imaging and Sensing 2018, 2018
Ian J. Bolding +8 more
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Ian J. Bolding +8 more
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