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  * absorption: four substrates characterized, #3 meets the specs (45ppm/cm), #1 almost meets the specs (60ppm/cm), #2 and #4 don't meet the specs (110ppm/cm and 90 ppm/cm)   * absorption:     * four substrates characterized,     * #3 meets the specs (45ppm/cm), #1 almost meets the specs (60ppm/cm), #2 and #4 don't meet the specs (110ppm/cm and 90 ppm/cm)
  * birefringence:
   * explanation of improved calibration system
   * aztec #3 characterization results: dn = (2+/-1)*1e-6, theta = 4deg

MIR Meeting on 2022/07/06 15:00 - 16:00

Participants: Matteo, Haoyu, Marc, Abe, Tomaru, June Gyu, Dan Chen

Next meeting

2022 Aug 3, 15:00 - 16:00

Minutes

  1. Sapphire substrate sent to LMA from KYamamoto to do a first attempt for Ti:GeO2 deposition

  2. Report on Aztec substrates characterization from Marc
    • absorption:
      • four substrates characterized,
      • #3 meets the specs (45ppm/cm), #1 almost meets the specs (60ppm/cm), #2 and #4 don't meet the specs (110ppm/cm and 90 ppm/cm)
    • birefringence:
      • explanation of improved calibration system
      • aztec #3 characterization results: dn = (2+/-1)*1e-6, theta = 4deg

Agenda

  • Aztec sample characterization

  • sapphire coated with Ti:GeO2 (tentative)

  • SIM update

KAGRA/Subgroups/MIR/Meetings/Minutes20220706 (last edited 2022-07-06 17:08:08 by matteo.leonardi)