MIR Meeting on 2023/11/22 16:00 - 17:00

Participants: Aso, Haoyu, Shalika, Sungho, Tomaru, KYamamoto, Marc, Matteo

Next meeting

2023 December ??, 16:00 - 17:00

Minutes

  1. review on final polishing spec document (Aso)

    • Marc: add spec on level of polarization linearity? -> Aso: linearity of the polishers have already been checked and they are compliant with the measurements at NAOJ so no need to add this spec

    • Haoyu: spec on birefringence? -> Aso: no since polishers cannot change birefringence, but can add additional characterization about birefringence

    • Sungho: measurement condition should be specified, same as we use the TM. Any double check by third party measurement? -> Aso + Matteo: mounting horizontally or vertically both have problems but sapphire do not deform under gravity as much as fused silica so there should be no issues. About the cross check it depends on the timing of the coating but it should be done either at NAOJ or at Caltech.

    • Matteo: add request not to damage the not processed surfaces. -> Aso: ok.

Agenda