MIR Meeting on 2022/07/06 15:00 - 16:00
Participants: Matteo, Haoyu, Marc, Abe, Tomaru, June Gyu, Dan Chen
Next meeting
2022 Aug 4, 15:00 - 16:00
Minutes
Sapphire substrate sent to LMA from KYamamoto to do a first attempt for Ti:GeO2 deposition
- 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
- losses below 1% due to birefringence
- scattering:
- IR camera installation ongoing to measure scattering on PCI setup
- IR and red measurement planned to distinguish between Rayleigh and Mie scattering
- absorption:
- Report of scattering measurement from Abe
- 10% - 30% losses on green
Agenda
- Aztec sample characterization
sapphire coated with Ti:GeO2 (tentative)
- SIM update