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Entry  Mon Apr 8 17:44:20 2013, Evan, Notes, PMC, About PMCs 
    Reply  Tue Apr 9 15:39:16 2013, tara, Notes, PMC, About PMCs 
       Reply  Mon Apr 15 10:59:35 2013, tara, Notes, PMC, Debra matrix for PMC design laser_rin.jpglaser_rin.jpg
          Reply  Tue Apr 16 13:24:46 2013, Evan, Notes, PMC, Debra matrix for PMC design 
          Reply  Wed May 1 01:45:55 2013, tara, Notes, PMC, Debra matrix for PMC design 
             Reply  Wed May 1 11:57:02 2013, Zach, Notes, PMC, Debra matrix for PMC design 
                Reply  Wed May 1 15:28:06 2013, not Zach, Notes, PMC, Debra matrix for PMC design 
Message ID: 1146     Entry time: Tue Apr 9 15:39:16 2013     In reply to: 1145     Reply to this: 1149
Author: tara 
Type: Notes 
Category: PMC 
Subject: About PMCs 

Considerations for PMC design:

  1. Stiffness(Acoustic susceptibility) & heavy material: With heavier material, the pmc motion on the support becomes smaller.(RXA: please quantify with a formula)
  2. Filtering factor (Finesse/FSR/Cavity pole), g-factor: Filter out intensity noise around 10 MHz (RXA: please quantify with a formula)
  3. Design for thermal expansion cancellation between the spacer and the end cap: So that the PMC is less sensitive to ambient temperature
  4.  3 or 4 mirrors?  3 is polarization selective. For general lab use with power less than 1 W,  3 mirror design should be good. (RXA: I don't follow this logic at all)

RXA: In general, all of these considerations need some sort of quantitative detail. Make a DeBra Matrix so that we can evaluate. 

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