Optical Absorption, Depolarization, and Scatter of Epitaxial Single-Crystal Chemical-Vapor-Deposited Diamond at 1.064 μm
Optical Absorption, Depolarization, and Scatter of Epitaxial Single-Crystal Chemical-Vapor-Deposited Diamond at 1.064 μm
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1.064 μm 外延单晶化学气相沉积金刚石的光吸收、去偏振和散射
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发表时间：
2007
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影响因子：
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通讯作者：
C. Stickley
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作者：
G. Turri;Ying Chen;M. Bass;D. Orchard;J. Butler;S. Magana;T. Feygelson;D. Thiel;K. Fourspring;R. Dewees;J. Bennett;Joni M. Pentony;S. Hawkins;M. Baronowski;A. Guenthner;M. Seltzer;D. C. Harris;C. Stickley
具有（100）晶体方向的外延单晶化学蒸气式钻石是从元素六（Ascot，英国）和阿波罗钻石（波士顿，马萨诸塞州）获得的。 1.74 mm。 1.064μm的正方形为0.003 cm -1，来自Apollo的正方形，一个Apollo标本的吸收系数在元素六个材料的吸收系数附近。每个平方样本可以在产生1.064μm激光束的极化的方向之间旋转钻石。最小损失在0到11％（平均= 5％），最大损失为8至27％（平均= 17％）。在磁盘的旋转角度，在1.064μm处的0.04至0.6％的整体光散射可以归因于表面粗糙度。
Epitaxial single-crystal chemical-vapor-deposited diamond with (100) crystal orientation is obtained from Element Six (Ascot, United Kingdom) and Apollo Diamond (Boston, Massachusetts). Both companies supply 5×5-mm squares with thicknesses of 0.35 to 1.74 mm. Element Six also provides disks with a state of the art diameter of 10 to 11 mm and a thickness of 1.0 mm. The absorption coefficient measured by laser calorimetry at 1.064 μm is 0.003 cm -1 for squares from Element Six and 0.07 cm -1 for squares from Apollo. One Apollo specimen has an absorption coefficient near those of the Element Six material. Absorption coefficients of Element Six disks are 0.008 to 0.03 cm -1 . Each square specimen can be rotated between orientations that produce minimum or maximum loss of polarization of a 1.064-μm laser beam transmitted through the diamond. Minimum loss is in the range 0 to 11% (mean=5%) and maximum loss is 8 to 27% (mean=17%). Element Six disks produce a loss of polarization in the range 0 to 4%, depending on the angle of rotation of the disk. Part of the 0.04 to 0.6% total integrated optical scatter in the forward hemisphere at 1.064 μm can be attributed to surface roughness.