Title :
Germanium photonic crystal nanobeam cavity with Q > 1,300
Author :
Kuroki, Michihiro ; Kako, Satoshi ; Ishida, Satomi ; Oda, Katsuya ; Ido, Tatemi ; Iwamoto, Satoshi ; Arakawa, Yasuhiko
Author_Institution :
Inst. of Ind. Sci. & Inst. for Nano Quantum Inf. Electron., Univ. of Tokyo, Tokyo, Japan
Abstract :
We fabricate germanium-based photonic crystal nanobeam cavities and observe a large enhancement (-170 times) of room-temperature photoluminescence signal at a cavity resonance of -1,700 nm. A cavity quality factor as high as 1,350 is achieved.
Keywords :
elemental semiconductors; germanium; nanophotonics; optical resonators; photoluminescence; photonic crystals; Ge; cavity quality factor; cavity resonance; germanium photonic crystal nanobeam cavity; photoluminescence signal; temperature 293 K to 298 K;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
