Journal ArticleDOI
A review of the optical properties of biological tissues
TLDR
The known optical properties (absorption, scattering, total attenuation, effective attenuation and/or anisotropy coefficients) of various biological tissues at a variety of wavelengths are reviewed in this article.Abstract:
The known optical properties (absorption, scattering, total attenuation, effective attenuation, and/or anisotropy coefficients) of various biological tissues at a variety of wavelengths are reviewed. The theoretical foundations for most experimental approaches are outlined. Relations between Kubelka-Munk parameters and transport coefficients are listed. The optical properties of aorta, liver, and muscle at 633 nm are discussed in detail. An extensive bibliography is provided. >read more
Citations
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Journal ArticleDOI
Efficient monte carlo simulation of confocal microscopy in biological tissue
Joseph M. Schmitt,K. Ben-Letaief +1 more
TL;DR: The most important finding is that operation of a confocal microscope in the true confocal mode enables much more effective rejection of undesired scattered light than operation in the partially coherent mode, but the maximum probing depths of microscopes operated in either mode are similar in practice because of sensitivity limitations.
Journal ArticleDOI
Encoded multisite two-photon microscopy
Mathieu Ducros,Mathieu Ducros,Yannick Goulam Houssen,Yannick Goulam Houssen,Jonathan Bradley,Vincent de Sars,Vincent de Sars,Serge Charpak,Serge Charpak +8 more
TL;DR: It is demonstrated that eMS2PM can be used to image spike-like voltage transients in cultured cells and fluorescence transients (calcium signals in neurons and red blood cells in capillaries from the cortex) in depth in vivo and is established as a unique method for simultaneous acquisition of neuronal network activity.
Journal ArticleDOI
A Photovoltaic-Driven and Energy-Autonomous CMOS Implantable Sensor
TL;DR: In this paper, an energy-autonomous, photovoltaic (PV)-driven and MRI-compatible CMOS implantable sensor is presented, where on-chip P+/N-well diode arrays are used as CMOS-compatible PV cells to harvest μW's of power from the light that penetrates into the tissue.
Patent
Low coherence interferometry utilizing phase
TL;DR: In this article, the authors proposed a method for determining a characteristic of an analyte in a biological sample, the method comprising: directing broadband light by means of a sensing light path at the biological sample at a target depth defined by the sensing lightpath and a reference light path.
Journal ArticleDOI
Detector concept for OPET-a combined PET and optical imaging system
TL;DR: The physical principles behind the operation of the OPET imaging system are described and an initial prototype detector module for simultaneous detection and imaging of annihilation radiation and single optical photons emanating from separate sources are demonstrated.
References
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Journal ArticleDOI
The Optics of Human Skin
R. Rox Anderson,John A. Parrish +1 more
TL;DR: An integrated review of the transfer of optical radiation into human skin is presented, aimed at developing useful models for photomedicine.
Journal ArticleDOI
New contributions to the optics of intensely light-scattering materials.
TL;DR: In this paper, the Gurevic and Judd formulas were derived from the Kubelka-Munk differential equations, and they are exact under the same conditions as in this paper, that is, when the material is perfectly dull and when the light, is perfectly diffused or if it is parallel and hits the specimen under an angle of 60° from normal.
Journal ArticleDOI
Time resolved reflectance and transmittance for the non-invasive measurement of tissue optical properties.
TL;DR: A simple model is developed, based on the diffusion approximation to radiative transfer theory, which yields analytic expressions for the pulse shape in terms of the interaction coefficients of a homogeneous slab.
Journal ArticleDOI
The delta-Eddington approximation for radiative flux transfer
TL;DR: In this paper, the delta-Eddington approximation was used to calculate monochromatic radiative fluxes in an absorbing-scattering atmosphere, by combining a Dirac delta function and a two-term approximation, which overcomes the poor accuracy of the Eddington approximation for highly asymmetric phase functions.