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怎样清洁红外窗片和晶体

要清理的光学元件，如KBr、CaF2、BaF2、ZnSe窗片或晶体等，一般可用棉签蘸合适的溶剂多次涂抹来清洁元件表面。在一般情况下，清洗盐类（如溴化钾，氯化钠）应避免使用水或含水的溶剂。非盐材料可以用清水清洗。一般用于清洁的有机溶剂是无水乙醇，丙酮，甲基乙基酮（MEK）。这些溶剂在使用前，应确认是无水的。蘸过溶剂的棉签应轻轻在窗片或晶体表面滑过或滚过，以免滑伤表面。另一种方法是使用超声波清洗浴缸。光学元件放置在培养皿中或软材料（如聚四氟乙烯）之上，尽量避免光学元件与其他材料接触。用适当的溶剂或清洁剂覆盖表面。约清洗0.5小时。使用低功耗等离子清洗机，也可以实现非接触式光学元件的清洗。确认窗口或ATR晶体是否清洗干净，常见的方法就是在仪器上来做一个单光束光谱，并与和以前的背景光谱作比对，不存在异常的高吸收峰，就说明清洗干净了。
    对不太严重的沾污或划伤的元件，还可以用专用清洁包来抛光处理。
To clean optical elements, most people use cotton-tipped applicators with a suitable solvent.. In general, avoid the use of water or solvents with water when cleaning salts (e.g., KBr, NaCl). Many non-salt materials can be cleaned with water. Many materials in general can be cleaned with organic solvents such as alcohol, acetone, and methyl ethyl ketone (MEK). MEK is a particularly good solvent for cleaning optical materials, because of its high volatility.
Another method of cleaning windows and ATR elements is to use an ultrasonic cleaning bath. With this equipment, cleaning is accomplished without abrasion. (Such cleaning baths are available through the major laboratory equipment suppliers.) The optical elements are placed in a tray or shallow bottle, on top of a soft material (e.g., PTFE), so that no two elements are touching. The elements are then covered with a suitable solvent and the cleaner turned on for approximately one hour. Non-contact cleaning of optical elements may also be accomplished using a low power plasma cleaner.
One common method to verify that the window or ATR element is clean is to run a single beam spectrum and look for unusual peaks that were not present in previous background spectra using the same equipment. Obviously, no amount of cleaning will restore an optical element which has been scratched, chipped, or broken. Minor defects can be corrected using the Optical Polishing Kit.

一般窗片的用无水酒精轻轻擦就可以了

原文由 oscarjxc(oscarjxc) 发表:
怎样清洁红外窗片和晶体

要清理的光学元件，如KBr、CaF2、BaF2、ZnSe窗片或晶体等，一般可用棉签蘸合适的溶剂多次涂抹来清洁元件表面。在一般情况下，清洗盐类（如溴化钾，氯化钠）应避免使用水或含水的溶剂。非盐材料可以用清水清洗。一般用于清洁的有机溶剂是无水乙醇，丙酮，甲基乙基酮（MEK）。这些溶剂在使用前，应确认是无水的。蘸过溶剂的棉签应轻轻在窗片或晶体表面滑过或滚过，以免滑伤表面。另一种方法是使用超声波清洗浴缸。光学元件放置在培养皿中或软材料（如聚四氟乙烯）之上，尽量避免光学元件与其他材料接触。用适当的溶剂或清洁剂覆盖表面。约清洗0.5小时。使用低功耗等离子清洗机，也可以实现非接触式光学元件的清洗。确认窗口或ATR晶体是否清洗干净，常见的方法就是在仪器上来做一个单光束光谱，并与和以前的背景光谱作比对，不存在异常的高吸收峰，就说明清洗干净了。
    对不太严重的沾污或划伤的元件，还可以用专用清洁包来抛光处理。
To clean optical elements, most people use cotton-tipped applicators with a suitable solvent.. In general, avoid the use of water or solvents with water when cleaning salts (e.g., KBr, NaCl). Many non-salt materials can be cleaned with water. Many materials in general can be cleaned with organic solvents such as alcohol, acetone, and methyl ethyl ketone (MEK). MEK is a particularly good solvent for cleaning optical materials, because of its high volatility.
Another method of cleaning windows and ATR elements is to use an ultrasonic cleaning bath. With this equipment, cleaning is accomplished without abrasion. (Such cleaning baths are available through the major laboratory equipment suppliers.) The optical elements are placed in a tray or shallow bottle, on top of a soft material (e.g., PTFE), so that no two elements are touching. The elements are then covered with a suitable solvent and the cleaner turned on for approximately one hour. Non-contact cleaning of optical elements may also be accomplished using a low power plasma cleaner.
One common method to verify that the window or ATR element is clean is to run a single beam spectrum and look for unusual peaks that were not present in previous background spectra using the same equipment. Obviously, no amount of cleaning will restore an optical element which has been scratched, chipped, or broken. Minor defects can be corrected using the Optical Polishing Kit.

低功耗等离子清洗机比较少见啊，效果怎么样呢？

可以，最好用Hexane ,IPA 挥发时间长，潮湿的话对晶体有伤害的

Material  PH range  Cleaning Agents 
KRS-5      5-8        methyl ethyl ketone
KBr        N/A        anhydrous solvent
ZnSe      5-9        alcohol, acetone,water 
Ge        1-14      alcohol, acetone, water

如果您有问题时发邮箱； jechoi@scinco.com

建议使用易挥发的溶液, 用湿布轻轻擦过