[Tu-P1-C] Nanomaterials and applications for photonics

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[Tu-P1-C-01] Integrated InP/InAs Nanowire WGM Cavities for Efficient Second-Harmonic Generation in SiN Waveguides

〇Masato Takiguchi^1,2, Guoqiang Zhang^1,2, Siyu Chen², Takuma Aihara³, Xuejun Xu², Hideki Gotoh⁴, Haruki Sanada², Hisashi Sumikura^1,2, Masaya Notomi^1,2,5 (1. NTT Nanophotonics Center (Japan), 2. NTT Basic Research Laboratories (Japan), 3. NTT Device Technology Laboratories (Japan), 4. Hiroshima University (Japan), 5. Institute of Science Tokyo (Japan))

We integrated a compound semiconductor nanowire on a silicon nitride waveguide and observed second-harmonic generation (SHG) via its whispering gallery mode (WGM). The resonant field enhancement and surface-localized excitation led to ~200× stronger SHG than in an InP nanowire.