scholarly journals FETD COMPUTATION OF THE TEMPERATURE DISTRIBUTION INDUCED INTO A HUMAN EYE BY A PULSED LASER

2011 ◽  
Vol 120 ◽  
pp. 403-421 ◽  
Author(s):  
Mario Cvetković ◽  
Dragan Poljak ◽  
Andres Peratta
Keyword(s):  
Temperature Distribution ◽  
Pulsed Laser ◽  
Human Eye

Effect of tissue and atmosphere's parameters on human eye temperature distribution

2015 ◽  
Vol 47 ◽  
pp. 51-58 ◽  
Author(s):  
Mohammad Sadegh Firoozan ◽  
Soheil Porkhial ◽  
Ali Salmani Nejad
Keyword(s):  
Temperature Distribution ◽  
Human Eye ◽  
Eye Temperature

Specific Absorption Rate and Temperature Increase in Human Eye Subjected to Electromagnetic Fields at 900 MHz

2012 ◽  
Vol 134 (9) ◽  
Author(s):  
Teerapot Wessapan ◽  
Phadungsak Rattanadecho
Keyword(s):  
Heat Transfer ◽  
Temperature Distribution ◽  
Electromagnetic Fields ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Heat Transfer Model ◽  
Transfer Model ◽  
Specific Absorption ◽  
Eye Model ◽  
Human Eye

Human eye is one of the most sensitive parts of the entire human body when exposed to electromagnetic fields. These electromagnetic fields interact with the human eye and may lead to cause a variety of ocular effects from high intensity radiation. However, the resulting thermo-physiologic response of the human eye to electromagnetic fields is not well understood. In order to gain insight into the phenomena occurring within the human eye with temperature distribution induced by electromagnetic fields, a detailed knowledge of absorbed power distribution as well as temperature distribution is necessary. This study presents a numerical analysis of specific absorption rate (SAR) and heat transfer in the heterogeneous human eye model exposed to electromagnetic fields. In the heterogeneous human eye model, the effect of power density on specific absorption rate and temperature distribution within the human eye is systematically investigated. In particular, the results calculated from a developed heat transfer model, considered natural convection and porous media theory, are compared with the results obtained from a conventional heat transfer model (based on conduction heat transfer). In all cases, the temperatures obtained from the developed heat transfer model have a lower temperature gradient than that of the conventional heat transfer model. The specific absorption rate and the temperature distribution in various parts of the human eye during exposure to electromagnetic fields at 900 MHz, obtained by numerical solution of electromagnetic wave propagation and heat transfer equation, are also presented. The results show that the developed heat transfer model, which is the more accurate way to determine the temperature increase in the human eye due to electromagnetic energy absorption from electromagnetic field exposure.

Temperature distribution during heating using a high repetition rate pulsed laser

1991 ◽  
Vol 69 (5) ◽  
pp. 2871-2876 ◽  
Author(s):  
Belgacem Haba ◽  
Brian W. Hussey ◽  
Arunava Gupta
Keyword(s):  
Temperature Distribution ◽  
Repetition Rate ◽  
Pulsed Laser ◽  
High Repetition Rate ◽  
High Repetition

Temperature distribution and thermal-induced defects in photorefractive barium titanate crystals illuminated with intense cw or pulsed laser irradiations

2000 ◽  
Vol 71 (4) ◽  
pp. 523-531 ◽  
Author(s):  
P. Mathey ◽  
S. Latour ◽  
P. Lompré ◽  
P. Jullien ◽  
D. Rytz ◽  
...  
Keyword(s):  
Temperature Distribution ◽  
Barium Titanate ◽  
Pulsed Laser ◽  
Induced Defects
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