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      Coating Type
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      Properties and Application
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      Antireflection
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      Single Layer MgF2
      £¨µ¥²ãMgF2)
      Applied to materials with refractive indices from 1.45 to 2.4. The most popular antireflection coating for visible. They are insensitive to change in incidence angles.
      (Ó¦ÓÃÓÚ²ÄÁÏÕÛÉäÂÊ´Ó1.45ÖÁ2.4,×îÊÜ»¶Ó­µÄÔö͸ĤΪ¿É¼û¹âÇøµÄ£¬ÔÚÕâÒ»ÇøÓòÊÜÈëÉä½Ç¶È±ä»¯Ó°Ïì½ÏС£©
      Multilayer "V"
      £¨¶à²ã¡°V"ÐÍÇúÏßÔö͸Ĥ£©
      Used to provide low reflectance with in a narrow durable wavelength band for most laser application. Minimum reflection can be less than 0.1%
      £¨¿ÉÔÚÒ»¸öÏÁÕ­µÄÄÍÓò¨³¤Æµ´øÌṩºÜµÍµÄ·´ÉäÂÊ£¬¹ã·ºÓ¦Óü¤¹âÁìÓò¡£×îС·´Éä¿ÉÒÔÉÙÓÚ0.1%£©
      Broadband Multilayer£¨¿í´ø¶à²ã¼õ·´Ä¤£© These coatings have excellent performance over a broad spectral range broadband. Coating performance is sensitive to angle of incidence.
      £¨´ËÀàÐÍĤϵ¿ÉÒÔÔÚÒ»¸ö±È½Ï¿íµÄ¹âÆ×·¶Î§´øÓÐÁ¼ºÃµÄ¼õ·´ÐÔÄÜ¡£´ËÀàÐͼõ·´Ä¤ÐÔÄÜÊÜÈëÉä½Ç±ä»¯Ó°ÏìºÜ´ó£©
      Dual Wavelength Band£¨Ë«²¨³¤¶à²ã¼õ·´Ä¤£© Offer very low reflectance at two widely spaced wavelengths, such as Nd:YAG Laser (1064) and its second harmonic (532) . Tempotec makes this a double wavelength waveplate.
      £¨ÔÚÁ½¸ö¼ä¸ôºÜ¿íµÄ²¨³¤´øÉÏ£¬Í¨¹ý¸´ºÏʹÌṩ¸ü´ó´ø¿í·¶Î§Äڷdz£µÍµÄ·´ÉäÂÊ,±ÈÈçNd:YAG¼¤¹â(1064)¼°Æä¶þ´Îг²¨(532)¡£µþ¼ÓµÃµ½Ë«²¨³¤²¨Æ¬£©

      AR coating sample curves
      µ¥²ãMgF2£¬ÔÚ²¨³¤400 ~ 700 nm£¨ÈëÉä½ÇΪ0£©£¬Æ½¾ù·´ÉäÂÊ < 2%

      µ¥²¨³¤¼õ·´Ä¤ÔÚ²¨³¤Îª1064nm£¨ÈëÉä½ÇΪ0ʱ£©£¬·´ÉäÂÊR < 0.25%

      ¿í´ø¶à²ã¼õ·´Ä¤£¬ÔÚ420nm~700nm·¶Î§ÄÚ£¨ÈëÉä½Ç¶ÈΪ0£©Æ½¾ù·´ÉäÂÊ < 1.0%

      Ë«²¨³¤¶ç³É¼õ·´Ä¤ÔÚ532nm~1064nm£¨ÈëÉä½Ç¶ÈΪ0£©Ê±Æ½¾ù·´ÉäÂÊ < 0.25%

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