| Measurement of optical penetration depth and refractive index of human tissue |
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| 作者姓名： | 谢树森 李晖 李步洪 |
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| 作者单位： | Diomecical Optics Laboratory，Institute of Laser，Fujian Normal University，Fuzhou 350007，Diomecical Optics Laboratory，Institute of Laser，Fujian Normal University，Fuzhou 350007，Diomecical Optics Laboratory，Institute of Laser，Fujian Normal University，Fuzhou 350007 |
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| 摘 要： | Experimental techniques for measurement of optical penetration depth and refractive index of humantissue are presented, respectively. Optical penetration depth can be obtained from the measurement ofthe relative fluence-depth distribution inside the target tissue. The depth of normal and carcinomatoushuman lung tissues irradiated with the wavelengths of 406.7, 632.8 and 674.4 nm in vitro are respectivelydetermined.In addition,a novel simple method based on total internal reflection for measuring therefractive index of biotissue in vivo is developed,and the refractive indices of skin from people of differentage, sex and skin color are measured.Their refractive indices are almost same and the average is 1.533.
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Measurement of optical penetration depth and refractive index of human tissue |
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| Abstract: | Experimental techniques for measurement of optical penetration depth and refractive index of human tissue are presented, respectively. Optical penetration depth can be obtained from the measurement of the relative fluence-depth distribution inside the target tissue. The depth of normal and carcinomatous human lung tissues irradiated with the wavelengths of 406.7, 632.8 and 674.4 nm in vitro are respectively determined. In addition, a novel simple method based on total internal reflection for measuring the refractive index of biotissue in vivo is developed, and the refractive indices of skin from people of different age, sex and skin color are measured. Their refractive indices are almost same and the average is 1.533. |
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