[10p-PB3-1~12] 3.11 Photonic structures and phenomena

[10p-PB3-5] Nanowire photodetector integrated in silicon photonic crystal with transparent electrode

〇Masato Takiguchi^1,2, Satoshi Sasaki², Kouta Tateno^1,2, Edward Chen², Kengo Nozaki^1,2, Sylvain Sergent^1,2, Eiichi Kuramochi^1,2, Guoqiang Zhang^1,2, Akihiko Shinya^1,2, Masaya Notomi^1,2 (1.NTT NPC, 2.NTT BRL)

Keywords:photonic crystal, nanowaire, photodetector

Current injection nanowire for photonic circuit is important for future photonic chip. Until now, we demonstrated telecom-band nanowire lasers in silicon photonic crystal [1] and single nanowire LEDs [2]. In this study, we demonstrate hybridization of silicon photonic crystals with single nanowires to create on-chip photo-detectors with transparent electrode. We measured the photo-current with a tunable laser light through the input waveguide. This configuration was only possible due to the transparent electrode and is a critical feature for future on-chip integration. This work was supported by JSPS KAKENHI Grant Number 15H05735.
[1] M. Takiguchi, et.al., APL Photonics, 2, 046106 (2017)
[2] M. Takiguchi, et.al., Appl. Phys. Lett., 112, 251106 (2018)