[10a-N205-1~9] CS.8 Code-sharing session of 6.2&KS1

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10a-N205-4] Observation of near-infrared single color centers in diamond

〇(M1)Ryo Shiotani¹, Tetsuri Nishikawa¹, Naoya Morioka^1,2, Shigehito Miki³, Riku Kawase¹, Hiroyuki Kawashima¹, Norikazu Mizuochi^1,2 (1.Kyoto Univ., 2.CSRN Kyoto Univ., 3.NICT)

Keywords:

diamond,color-center

Color centers that emit fluorescence in the near-infrared region are suitable for quantum communication and biomedical sensing due to their low-loss emission in optical fibers and in vivo environments. However, only a limited number of such color centers have been reported in diamond, and further exploration is required. In this study, we observed color centers in diamond emitting under 730 nm laser excitation in a sample consisting of a CVD-grown film on a high-pressure high-temperature (HPHT) synthesized type Ib diamond substrate. Autocorrelation measurements and photoluminescence spectroscopy revealed that the observed color center is a single-photon emitter in the near-infrared region.