40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  PSL  Not logged in ELOG logo
Entry  Sun Jul 27 19:46:16 2014, Evan, DailyProgress, optic, BRDF of AlGaAs mirror 137B1 ccdImage.pdf137brdf.pdf
    Reply  Tue Jul 29 11:40:09 2014, Evan, DailyProgress, optic, BRDF of AlGaAs mirror 143 143brdf.pdf
       Reply  Wed Jul 30 17:47:56 2014, tara, DailyProgress, optic, BRDF of AlGaAs mirror 143 
Message ID: 1461     Entry time: Tue Jul 29 11:40:09 2014     In reply to: 1460     Reply to this: 1462
Author: Evan 
Type: DailyProgress 
Category: optic 
Subject: BRDF of AlGaAs mirror 143 

[Tara, Evan]

Yesterday we took a scatter measurement of AlGaAs mirror #143. Instead of one bright scattering center, we saw 3.

The procedure is identical to the procedure used for mirror #137, although the exposure settings and choice of angles are a bit different (see the attached plot). Also, we used 20 mW of incident power instead of 10 mW.

Total integrated scatter from 14° to 82° is 80(8) ppm.

Data, images, and plot-generating code are on the SVN at CTNlab/measurements/2014_07_28.

Attachment 1: 143brdf.pdf  772 kB  | Hide | Hide all
143brdf.pdf
ELOG V3.1.3-