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

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.

Large area light propagation in quasi-zero average refractive index materials

2009 ◽  
Vol 1182 ◽  
Author(s):  
Principia Dardano ◽  
Vito Mocella ◽  
Stefano Cabrini ◽  
Allan S. Chang ◽  
Luigi Moretti ◽  
...  
Keyword(s):  
Refractive Index ◽  
Photonic Crystals ◽  
Effective Refractive Index ◽  
Light Propagation ◽  
Near Infrared ◽  
Experimental Results ◽  
Infrared Light ◽  
Large Area ◽  
Near Infrared Light ◽  
Average Refractive Index

AbstractIn this paper the experimental results show near-infrared light collimation through large area (2 x 2 mm) nanopatterned material with refractive index quasi-zero on the average. This quasi-zero refractive index is obtained alternating photonic crystals strips with effective refractive index neff = –1 and air strips (n = 1). Layers optically annihilate each other, verifying the optical antimatter concept theoretically proposed by Pendry et al [J. Phys.: Condens. Matter 15, 6345 (2003)].

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