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Metal-coated semiconductor nanostructures and simulation of photon extraction and coupling to optical fibers for a solid-state single-photon source
| Title: | Metal-coated semiconductor nanostructures and simulation of photon extraction and coupling to optical fibers for a solid-state single-photon source |
| Authors: | Suemune, Ikuo Browse this author →KAKEN DB | | Nakajima, Hideaki Browse this author | | Liu, Xiangming Browse this author | | Odashima, Satoru Browse this author | | Asano, Tomoya Browse this author | | Iijima, Hitoshi Browse this author | | Huh, Jae-Hoon Browse this author | | Idutsu, Yasuhiro Browse this author | | Sasakura, Hirotaka Browse this author →KAKEN DB | | Kumano, Hidekazu Browse this author →KAKEN DB |
| Issue Date: | 15-Nov-2013 |
| Publisher: | IOP Publishing |
| Journal Title: | Nanotechnology |
| Volume: | 24 |
| Issue: | 45 |
| Start Page: | (455205)1 |
| End Page: | (455205)9 |
| Publisher DOI: | 10.1088/0957-4484/24/45/455205 |
| PMID: | 24141080 |
| Abstract: | We have realized metal-coated semiconductor nanostructures for a stable and efficient single-photon source (SPS) and demonstrated improved single-photon extraction efficiency by the selection of metals and nanostructures. We demonstrate with finite-difference time-domain (FDTD) simulations that inclination of a pillar sidewall, which changes the structure to a nanocone, is effective in improving the photon extraction efficiency. We demonstrate how such nanocone structures with inclined sidewalls are fabricated with reactive ion etching. With the optimized design, a photon extraction efficiency to outer airside as high as similar to 97% generated from a quantum dot in a nanocone structure is simulated, which is the important step in realizing SPS on-demand operations. We have also examined the direct contact of such a metal-embedded nanocone structure with a single-mode fiber facet as a simple and practical method for preparing fiber-coupled SPS and demonstrated practical coupling efficiencies of similar to 16% with FDTD simulation. |
| Rights: | © 2013 IOP Publishing Ltd |
| Relation: | http://iopscience.iop.org/0957-4484/24/45/455205/ |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/57451 |
| Appears in Collections: | 電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 末宗 幾夫
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