Latest News


A new paper about characterization of core optics in GW-detectors published

Characterization of Core Optics in Gravitational-Wave Detectors: Case Study of KAGRA Sapphire Mirrors

Eiichi Hirose, GariLynn Billingsley, Liyuan Zhang, Hiroaki Yamamoto, Laurent Pinard, Christoph Michel, Danièle Forest, Bill Reichman, and Mark Gross
Phys. Rev. Applied 14, 014021 – Published 8 July 2020

July 8, 2020


"STAR" is now on a paper

Building a setup capable of characterizing large and low-loss optics: “STAR”

 E. HiroseK. Mochizuki, and T. Kinoshita

Review of Scientific Instruments 91, 065113 (2020)

Jun 19, 2020


A setup for very-low-loss optics, "STAR" launched

STAR, a setup for high accuracy optical characterization, capable of measuring scattering, absorption, and reflection of both coating and bulk, has been launched

Nov 2, 2019


A paper about inhomogeneity-effect of sapphire substrate on GW-detector published

Influence of nonuniformity in sapphire substrates for a gravitational wave telescope

K. Somiya, E. Hirose, and Y. Michimura
Phys. Rev. D 100, 082005 – Published 30 October 2019

Oct 30, 2019