Purcell-Enhanced Single-Photon Emission from Nitrogen-Vacancy Centers Coupled to a Tunable Microcavity
| Autor: | Helmut Fedder, Philip Haeusser, Hanno Kaupp, Benedikt Schlederer, Huan-Cheng Chang, Matthias Mader, Theodor W. Hänsch, Julia Benedikter, David Hunger, Thomas Hümmer |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
FOS: Physical sciences General Physics and Astronomy Physics::Optics 02 engineering and technology Purcell effect 01 natural sciences Vacancy defect Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences ddc:530 Emission spectrum 010306 general physics Spin (physics) Quantum Mode volume Quantum Physics Condensed Matter - Mesoscale and Nanoscale Physics business.industry Physics 021001 nanoscience & nanotechnology Fluorescence Nanocrystal Optoelectronics Physics::Accelerator Physics Quantum Physics (quant-ph) 0210 nano-technology business Optics (physics.optics) Physics - Optics |
| Zdroj: | Physical Review Applied Physical review applied, 6, 054010 |
| ISSN: | 2331-7019 |
| Popis: | Optical microcavities are a powerful tool to enhance spontaneous emission of individual quantum emitters. However, the broad emission spectra encountered in the solid state at room temperature limit the influence of a cavity, and call for ultra-small mode volume. We demonstrate Purcell-enhanced single photon emission from nitrogen-vacancy (NV) centers in nanodiamonds coupled to a tunable fiber-based microcavity with a mode volume down to $1.0\,\lambda^{3}$. We record cavity-enhanced fluorescence images and study several single emitters with one cavity. The Purcell effect is evidenced by enhanced fluorescence collection, as well as tunable fluorescence lifetime modification, and we infer an effective Purcell factor of up to 2.0. With numerical simulations, we furthermore show that a novel regime for light confinement can be achieved, where a Fabry-Perot mode is combined with additional mode confinement by the nanocrystal itself. In this regime, effective Purcell factors of up to 11 for NV centers and 63 for silicon vacancy centers are feasible, holding promise for bright single photon sources and efficient spin readout under ambient conditions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|