[5p-C14-1~14] 3.5 Laser system and materials

△ [5p-C14-9] Precision measurement of group refractive index and dispersion property of optical material by dual-comb spectroscopy

〇(M2)Kenichi Kondo^1,2, Akifumi Asahara^1,2, Yue Wang^1,2, Ichiro Shoji³, Kaoru Minoshima^1,2 (1.Univ. of Electro-Communications, 2.JST, ERATO MINOSHIMA Intelligent Optical Synthesizer (IOS), 3.Chuo University)

Keywords:Optical Frequency Comb, Dual-Comb Spectroscopy

It is important to precisely evaluate refractive index and dispersion properties of optical materials in various applications. We have previously reported the development of dual-comb spectroscopy for characterizing the properties of optical materials and refractive index of anisotropic materials. In this study, we applied DCS for characterization of group refractive index and group velocity dispersion (GVD), and we demonstrated the applicability.