Results 171 to 180 of about 6,206 (208)
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Optoacoustic imaging and potential applications of raster-scan optoacoustic mesoscopy in dermatology
Clinics in Dermatology, 2022Optoacoustic imaging (OAI) is a hybrid imaging modality that integrates the benefits of optical contrast and ultrasound detection. Raster-scan optoacoustic mesoscopy (RSOM) is an emerging OAI method that provides information about several dermatological conditions' structural, functional, and molecular features.
Tassahil, Messas +2 more
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Journal of Applied Physics, 1980
By laser beam scanning the optoacoustic signal as a function of the sample coordinates is obtained. Examples for surface and subsurface imaging and for image contrasting are presented.
G. Busse, A. Ograbeck
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By laser beam scanning the optoacoustic signal as a function of the sample coordinates is obtained. Examples for surface and subsurface imaging and for image contrasting are presented.
G. Busse, A. Ograbeck
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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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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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Optoacoustic monitoring of bilirubin photodegradation
Journal of Biophotonics, 2023AbstractHematomas resulted from trauma are very common, and the efficacy of existing treatment techniques is limited. Phototherapy can be used to expedite healing and improve the appearance of the damaged tissue. Efficient phototherapy requires determination of chromophore composition in hematoma, which can be provided by the optoacoustic (OA ...
Sergei Perkov +6 more
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2014
Optoacoustic imaging is emerging as a powerful modality for in vivo imaging of small animals and humans that can simultaneously provide anatomical, functional, and molecular contrast, overcoming a variety of long-standing limitations imposed by light scattering in deep tissues.
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Optoacoustic imaging is emerging as a powerful modality for in vivo imaging of small animals and humans that can simultaneously provide anatomical, functional, and molecular contrast, overcoming a variety of long-standing limitations imposed by light scattering in deep tissues.
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Doppler-free optoacoustic spectroscopy
Optics Communications, 1979The first observation of Doppler-free optoacoustic spectroscopy is reported. As a first example the P (193) line of the 11-0 band of the B←X transition of 127I2 is used. The output of cw single mode dye laser is split into two equal intensity beams chopped at frequencies ω1 and ω2. The nonlinear compoment of the optoacoustic signal at the frequency (ω1
E. E. Marinero, M. Stuke
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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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Hybrid multiphoton and optoacoustic microscope
Optics Letters, 2014We present a hybrid microscope combining multiphoton microscopy incorporating second-harmonic generation contrast and optical-resolution optoacoustic (photoacoustic) microscopy. We study the relative performance of the two systems and investigate the complementarity of contrast by demonstrating the label-free imaging capabilities of the hybrid ...
George J. Tserevelakis +3 more
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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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