文献类型：期刊文献

英文题名：Recent progress in improving low-temperature stability of infrared thin-film interference filters

作者：Li, B.[1]; Zhang, S.Y.[1]; Jiang, J.C.[2]; Liu, D.Q.[1]; Zhang, F.S.[1]

机构：[1]Chinese Acad Sci, Shanghai Inst Tech Phys, Shanghai 200083, Peoples R China;[2]E China Univ Sci & Technol, Sch Chem & Pharmaceut, Shanghai 200237, Peoples R China

年份：2005

卷号：13

期号：17

起止页码：6376

外文期刊名：OPTICS EXPRESS

收录：;EI(收录号：2005369351390);WOS:【SCI-EXPANDED(收录号:WOS:000231375000006)】；

语种：英文

外文关键词：Composition - Infrared radiation - Lead alloys - Light interference - Low temperature effects - Thin films

摘要：The degeneration of performance of an optical thin-film interference filter associated with the change of temperature is not acceptable. In this letter, we report a new progress in improving low-temperature performance of infrared narrow-band filters by using Pb-1-xGexTe initial bulk alloy with appropriate Ge concentration x. It can be found that there exists a critical temperature for the investigated narrowband filter, at which the temperature coefficient of filter is exactly zero. Therefore, by means of controlling the composition in (Pb1-xGex)(1-y)Te-y layers, the temperature coefficient of filter can be tunable at the designated low-temperature. In our present investigation, when temperature varies from 300 to 85 K, a shift of peak wavelength of 0.05935 nm. K-1 has been achieved. (c) 2005 Optical Society of America.