| Autor: |
Lyamkina, A. A., Schraml, K., Regler, A., Schalk, M., Bakarov, A. K., Toropov, A. I., Moshchenko, S. P., Kaniber, M. |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
Optics Express 24, 28936 (2016) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1364/OE.24.028936 |
| Popis: |
Deterministically integrating semiconductor quantum emitters with plasmonic nano-devices paves the way towards chip-scale integrable, true nanoscale quantum photonics technologies. For this purpose, stable and bright semiconductor emitters are needed, which moreover allow for CMOS-compatibility and optical activity in the telecommunication band. Here, we demonstrate strongly enhanced light-matter coupling of single near-surface ($<10\,nm$) InAs quantum dots monolithically integrated into electromagnetic hot-spots of sub-wavelength sized metal nanoantennas. The antenna strongly enhances the emission intensity of single quantum dots by up to $\sim16\times$, an effect accompanied by an up to $3.4\times$ Purcell-enhanced spontaneous emission rate. Moreover, the emission is strongly polarised along the antenna axis with degrees of linear polarisation up to $\sim85\,\%$. The results unambiguously demonstrate the efficient coupling of individual quantum dots to state-of-the-art nanoantennas. Our work provides new perspectives for the realisation of quantum plasmonic sensors, step-changing photovoltaic devices, bright and ultrafast quantum light sources and efficent nano-lasers. |
| Databáze: |
arXiv |
| Externí odkaz: |
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