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首页> 外文期刊>Applied optics >Temperature alterations of infrared light absorption by cartilage and cornea under free-electron laser radiation
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Temperature alterations of infrared light absorption by cartilage and cornea under free-electron laser radiation

机译：自由电子激光辐射下软骨和角膜吸收红外光的温度变化

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摘要

Like pure water, the water incorporated into cartilage and cornea tissue shows a pronounced dependence of the absorption coefficient on temperature. Alteration of the temperature by radiation with an IR free-electron laser was studied by use of a pulsed photothermal radiometric technique. A computation algorithm was modified to take into account the real IR absorption spectra of the tissue and the spectral sensitivity of the IR detector used. The absorption coefficients for several wavelengths within the 2.9- and 6.1-mum water absorption bands have been determined for various laser pulse energies. It is shown that the absorption coefficient for cartilage decreases at temperatures higher than 50 degreesC owing to thermal alterations of water-water and water-biopolymer interactions. (C) 2003 Optical Society of America. [References: 23]
机译：像纯净水一样，掺入软骨和角膜组织中的水也表现出吸收系数对温度的明显依赖性。通过使用脉冲光热辐射技术研究了利用红外自由电子激光辐射引起的温度变化。修改了计算算法，以考虑到组织的实际IR吸收光谱和所用IR检测器的光谱灵敏度。对于各种激光脉冲能量，已经确定了在2.9和6.1微米吸水带内几个波长的吸收系数。结果表明，由于水-水和水-生物聚合物相互作用的热变化，在高于50摄氏度的温度下，软骨的吸收系数降低。 （C）2003年美国眼镜学会。 [参考：23]

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