Journal
ACS PHOTONICS
Volume 3, Issue 4, Pages 558-563Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.5b00499
Keywords
photoluminescence; plasmonics; metamaterials; quantum dots; finite-different time-domain; spontaneous emission
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Funding
- U.S. Department of Energy (Basic Energy Sciences, Division of Materials Sciences and Engineering) [DE-AC02-07CH11358]
- National Natural Science Foundation of China [61101064, 51277001, 51477039, 61201122]
- NCET of China [NCET-12-0596]
- DFMEC [20123401110009]
- European Research Council under ERC Advanced Grant (PHOTOMETA) [320081]
- Anhui Provincial Natural Science Foundation [1508085JD03, 1508185QF130]
- European Research Council (ERC) [320081] Funding Source: European Research Council (ERC)
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A self-consistent approach is proposed to simulate a coupled system of quantum dots (QDs) and metallic metamaterials. Using a four-level atomic system, an artificial source is introduced to simulate the spontaneous emission process in the QDs. We numerically show that the metamaterials can lead to multifold enhancement and spectral narrowing of photoluminescence from QDs. These results are consistent with recent experimental studies. The proposed method represents an essential step for developing and understanding a metamaterial system with gain medium inclusions.
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