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Entry  Wed Feb 6 20:19:52 2013, Manasa, Update, Optics, G&H and LaserOptik mirrors 
    Reply  Thu Feb 7 14:10:25 2013, Manasa, Update, Optics, LaserOptik - AR Reflectivity - Bad data SN6_R.pngSN6_R.png
       Reply  Fri Feb 8 21:14:52 2013, Manasa, Update, Optics, G&H - AR Reflectivity  pr2.png27_1044419003.bmp
          Reply  Fri Feb 8 22:49:31 2013, Koji, Update, Optics, G&H - AR Reflectivity  
             Reply  Fri Feb 8 23:04:40 2013, Manasa, Update, Optics, G&H - AR Reflectivity  
          Reply  Sat Feb 9 19:34:34 2013, rana, Update, Optics, G&H - AR Reflectivity  
          Reply  Mon Feb 11 19:55:47 2013, Manasa, Update, Optics, G&H - AR Reflectivity  
             Reply  Wed Feb 13 09:28:56 2013, Steve, Update, Optics, G&H - HR plots 
Message ID: 8051     Entry time: Sat Feb 9 19:34:34 2013     In reply to: 8045
Author: rana 
Type: Update 
Category: Optics 
Subject: G&H - AR Reflectivity  

 

 Use the trick I suggested:

Focus the beam so that the beam size at the detector is smaller than the beam separation. Use math to calculate the beam size and choose the lens size and position. You should be able to achieve a waist size of < 0.1 mm for the reflected beam.

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