[23p-A202-1~11] 17.3 Layered materials

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[23p-A202-5] Optical response of 2D NbOI2

〇Arata Mitsuzuka¹, Isamu Yasuda¹, Masashi Kawaguchi¹, Satoru Morito², Keiji Ueno², Masamitsu Hayashi¹ (1.The Univ. of Tokyo, 2.Saitama Univ.)

Keywords:

2D material,harmonic generation,Nonlinear optical effects

The two-dimensional material NbOI₂ exhibits large nonlinear optical effects and is expected to be a highly efficient and compact second harmonic generator and entangled light source. We have evaluated the optical response of NbOI₂. When linearly polarized light was incident on NbOI₂, the intensity of the harmonics was found to be the highest when the polarization direction coincided with the specific axis of the crystal. We also measured that the intensity of the harmonic wave varies greatly with the intensity of the incident light. In this presentation, we will also present the results of Raman spectroscopy measurements and the response of a sample heterojunctioned with WS₂.