Photonic Crystal Cavity with a Thin Low-Index Layer for Silicon-Compatible Nanolight Source
- Authors
- Kim, Youngsoo; Lee, Young Jin; Hong, Seokhyeon; Moon, Kihwan; Kwon, Soon-Hong
- Issue Date
- Sep-2018
- Publisher
- MDPI
- Keywords
- photonic crystals; cavity; Purcell factor; slot mode
- Citation
- APPLIED SCIENCES-BASEL, v.8, no.9
- Journal Title
- APPLIED SCIENCES-BASEL
- Volume
- 8
- Number
- 9
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/873
- DOI
- 10.3390/app8091552
- ISSN
- 2076-3417
2076-3417
- Abstract
- The development of an efficient silicon-based nanolight source is an important step for silicon-based photonic integrated circuits. We propose a high quality factor photonic crystal nanocavity consisting of silicon and silica, which can be used as a silicon-compatible nanolight source. We show that this cavity can effectively confine lights in a low-index silica layer with a high confinement factor of 0.25, in which rare-earth dopants can be embedded as gain materials. The cavity is optimized to have a high quality factor of 15,000 and a mode volume of 0.01 m(3), while the resonance has a wavelength of 1537 nm. We expect that the high confinement factor in the thin silica layer and the high quality factor of the proposed cavity enable the cavity to be a good candidate for silicon-compatible nanolight sources for use in nanolasers or light-emitting diodes in the telecommunication wavelength region.
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Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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