Participants
Y. Aso, M. Eisenmann, S. Lee, B. Park, S. Singh, K. Takeshita
New ITMs preparation
Polishing
* Crystals sent to Nikon and inspection on-going * pre fine-polishing planned to remove scratches will be paid by Okamoto * Meeting planned with Nikon mid-May to report about scratch removal and final schedule
Coating
- Meeting with LMA after the meeting with Nikon
- Especially we need to know if they can do TWE+birefringence measurement next year
- Possibility for KAGRA MIR people to go there and collaborate on these activities
Absorption measurement
- KASI/NAOJ collaboration planned on KASI's PCI developmnent
- at KASI, 1064nm laser too noisy so now focusing on 1550nm (up to 10W)
- useful measurement to understand 1064nm absorption together with 2um absorption measurement at Adelaide University and spectroscopy at NAOJ