808纳米和980纳米激光在牛组织样本中的穿透情况。
Penetration of laser light at 808 and 980 nm in bovine tissue samples.
作者信息
Hudson Donald E, Hudson Doreen O, Wininger James M, Richardson Brian D
机构信息
Respond Systems, Inc., Branford, CT 06405, USA.
出版信息
Photomed Laser Surg. 2013 Apr;31(4):163-8. doi: 10.1089/pho.2012.3284. Epub 2013 Feb 26.
Abstract
OBJECTIVE
The purpose of this study was to compare the penetration of 808 and 980 nm laser light through bovine tissue samples 18-95 mm thick.
BACKGROUND DATA
Low-level laser therapy (LLLT) is frequently used to treat musculoskeletal pathologies. Some of the therapeutic targets are several centimeters deep.
METHODS
Laser light at 808 and 980 nm (1 W/cm(2)) was projected through bovine tissue samples ranging in thickness from 18 to 95 mm. Power density measurements were taken for each wavelength at the various depths.
RESULTS
For 808 nm, 1 mW/cm(2) was achieved at 3.4 cm, but for 980 nm, 1 mW/cm(2) was achieved at only 2.2 cm depth of tissue.
CONCLUSIONS
It was determined that 808 nm of light penetrates as much as 54% deeper than 980 nm light in bovine tissue.
摘要
目的
本研究旨在比较808纳米和980纳米激光穿透18至95毫米厚牛组织样本的深度。
背景数据
低强度激光疗法（LLLT）常用于治疗肌肉骨骼疾病。一些治疗靶点在几厘米深处。
方法
将808纳米和980纳米（1瓦/平方厘米）的激光投射穿过厚度为18至95毫米的牛组织样本。在不同深度对每个波长进行功率密度测量。
结果
对于808纳米激光，在3.4厘米深度处达到1毫瓦/平方厘米，但对于980纳米激光，仅在2.2厘米组织深度处达到1毫瓦/平方厘米。
结论
已确定在牛组织中，808纳米激光的穿透深度比980纳米激光深54%。
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