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标题: 有谁了解砷化镓(GaAS)的特性,要给它镀膜要注意些什么问题? [打印本页]

作者: jeh    时间: 2003-7-26 00:38
标题: 有谁了解砷化镓(GaAS)的特性,要给它镀膜要注意些什么问题?
有谁了解砷化镓(GaAS)的特性,要给它镀高反膜要注意些什么问题?

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作者: pitcher    时间: 2003-7-26 20:54
标题: 有谁了解砷化镓(GaAS)的特性,要给它镀膜要注意些什么问题?
What do you want to know about it? I am also looking for the high reflection coating for GaAs or GaSb based laser diode. I know GaAs well, but little about the coating. The reflective index of GaAs is around 3.8. I think that’’s critical to the film design of coating.
作者: chugqchugq    时间: 2003-7-28 05:52
标题: 有谁了解砷化镓(GaAS)的特性,要给它镀膜要注意些什么问题?
中心波长是多少?
作者: jeh    时间: 2003-7-31 21:03
标题: 有谁了解砷化镓(GaAS)的特性,要给它镀膜要注意些什么问题?
中心波长1550nm,要求R98%,我试镀过,用sio2和ta2o5,第一层为ta2o5,烘烤加热230℃,还有赫尔源辅助镀膜,但膜层不牢,脱膜!!
作者: optele    时间: 2004-4-1 04:04
标题: ??
as i know the index of GaAs is about 3.5
作者: xiao2000    时间: 2004-4-1 16:40

Refractive index n versus photon energy for a high-purity GaAs.(no~5·1013 cm-3). Solid curve is deduced from two-beam reflectance measurements at 279 K. Dark circles are obtained from refraction measurements. Light circles are calculated from Kramers-Kronig analysis

[此贴子已经被作者于2004-4-2 9:22:37编辑过]

作者: vietti    时间: 2004-4-5 16:57

对半导体激光器膜系计算,应该是从材料往空气入射吧,

即N0=3.5,Ns=1,对吗?






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