Three‐dimensional frequency‐domain optical anisotropy imaging of biological tissues with near‐infrared light

2019 ◽  
Vol 46 (9) ◽  
pp. 4057-4069 ◽  
Author(s):  
Ahmad Addoum ◽  
Sylvain Contassot‐Vivier ◽  
Fatmir Asllanaj
Keyword(s):  
Frequency Domain ◽  
Optical Anisotropy ◽  
Near Infrared ◽  
Three Dimensional ◽  
Biological Tissues ◽  
Infrared Light ◽  
Near Infrared Light

scholarly journals Generalized Beer–Lambert model for near-infrared light propagation in thick biological tissues

2016 ◽  
Vol 21 (7) ◽  
pp. 076012 ◽  
Author(s):  
Manish Bhatt ◽  
Kalyan R. Ayyalasomayajula ◽  
Phaneendra K. Yalavarthy
Keyword(s):  
Light Propagation ◽  
Near Infrared ◽  
Biological Tissues ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Lambert Model

scholarly journals Growth of quantum three-dimensional structure of InGaAs emitting at ~1 µm applicable for a broadband near-infrared light source

2017 ◽  
Vol 477 ◽  
pp. 230-234 ◽  
Author(s):  
Nobuhiko Ozaki ◽  
Shingo Kanehira ◽  
Yuma Hayashi ◽  
Shunsuke Ohkouchi ◽  
Naoki Ikeda ◽  
...  
Keyword(s):  
Light Source ◽  
Near Infrared ◽  
Three Dimensional ◽  
Infrared Light ◽  
Dimensional Structure ◽  
Near Infrared Light ◽  
Three Dimensional Structure

Interface coassembly of mesoporous MoS2 based-frameworks for enhanced near-infrared light driven photocatalysis

2016 ◽  
Vol 52 (38) ◽  
pp. 6431-6434 ◽  
Author(s):  
Lihua Zhi ◽  
Haoli Zhang ◽  
Zhengyin Yang ◽  
Weisheng Liu ◽  
Baodui Wang
Keyword(s):  
Photocatalytic Activity ◽  
Room Temperature ◽  
Near Infrared ◽  
Three Dimensional ◽  
Infrared Light ◽  
Direct Arylation ◽  
Near Infrared Light ◽  
Nir Light ◽  
Hybrid Framework ◽  
First Time

The three-dimensional porous Fe3O4@Cu2−xS–MoS2 framework is reported for the first time. Such a hybrid framework exhibits excellent NIR-light photocatalytic activity and stable cycling for the direct arylation of heteroaromatics at room temperature.

scholarly journals High circular polarization of near-infrared light induced by micron-sized dust grains

2020 ◽  
Vol 496 (3) ◽  
pp. 2762-2767
Author(s):  
Hajime Fukushima ◽  
Hidenobu Yajima ◽  
Masayuki Umemura
Keyword(s):  
Circular Polarization ◽  
Near Infrared ◽  
Three Dimensional ◽  
Stokes Parameters ◽  
Young Stellar Objects ◽  
Infrared Light ◽  
Dusty Gas ◽  
Dust Grains ◽  
Near Infrared Light ◽  
Star Forming

ABSTRACT We explore the induction of circular polarization (CP) of near-infrared light in star-forming regions using three-dimensional radiative transfer calculations. The simulations trace the change of Stokes parameters at each scattering/absorption process in a dusty gas slab composed of aligned grains. We find that the CP degree enlarges significantly according as the size of dust grains increases and exceeds ∼20 per cent for micron-sized grains. Therefore, if micron-sized grains are dominant in a dusty gas slab, the high CP observed around luminous young stellar objects can be accounted for. The distributions of CP show the asymmetric quadrupole patterns regardless of the grain sizes. Also, we find that the CP degree depends on the relative position of a dusty gas slab. If a dusty gas slab is located behind a star-forming region, the CP reaches ∼60 per cent in the case of 1.0 µm dust grains. Hence, we suggest that the observed variety of CP maps can be explained by different size distributions of dust grains and the configuration of aligned grains.

Modeling the Near Infrared Light Propagation in Biological Tissues

2015 ◽  
Vol 713-715 ◽  
pp. 686-689
Author(s):  
Yu Xiang Wu ◽  
Min Fang Huang ◽  
Tao Song ◽  
Guo Dong Xu
Keyword(s):  
Biological Tissue ◽  
Light Propagation ◽  
Near Infrared ◽  
Structural Characteristics ◽  
Biological Tissues ◽  
Infrared Light ◽  
Optical Parameters ◽  
Near Infrared Light ◽  
Photon Propagation ◽  
Transmission And Distribution

The model of photon energy distribution in biological tissue has a very important significance in the diagnosis and treatment of biomedical area. The history and development of optical transmission and distribution in the biological tissue is outlined. The structural characteristics and optical properties of biological tissue are explained and discussed. To demonstrate the model of photon propagation in biological tissue, several methods about laser and biological tissue interaction of transmission theory are summarized and the physical meaning of the tissue optical parameters on is considered. On this basis, we simulated near infrared light distribution of the biological tissue with Monte Carlo methods and obtained meaningful results.

scholarly journals Spectral tomography with diffuse near-infrared light: inclusion of broadband frequency domain spectral data

2008 ◽  
Vol 13 (4) ◽  
pp. 041305 ◽  
Author(s):  
Jia Wang ◽  
Scott C. Davis ◽  
Subhadra Srinivasan ◽  
Shudong Jiang ◽  
Brian W. Pogue ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Spectral Data ◽  
Near Infrared ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Spectral Tomography ◽  
Broadband Frequency
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