Probing Electric and Magnetic Vacuum Fluctuations with Quantum Dots
| Autor: | Søren Stobbe, Anders S. Sørensen, Petru Tighineanu, Peter Lodahl, Mads Lykke Andersen |
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| Rok vydání: | 2014 |
| Předmět: |
Physics
Quantum Physics Condensed Matter - Mesoscale and Nanoscale Physics Atomic Physics (physics.atom-ph) business.industry FOS: Physical sciences General Physics and Astronomy Physics - Atomic Physics Photonic metamaterial Magnetic field Quantum dot Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Electro-absorption modulator Quasiparticle Optoelectronics Spontaneous emission Photonics Quantum Physics (quant-ph) business Quantum fluctuation Optics (physics.optics) Physics - Optics |
| Zdroj: | Physical Review Letters. 113 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.113.043601 |
| Popis: | The electromagnetic-vacuum-field fluctuations are intimately linked to the process of spontaneous emission of light. Atomic emitters cannot probe electric- and magnetic-field fluctuations simultaneously because electric and magnetic transitions correspond to different selection rules. In this paper we show that semiconductor quantum dots are fundamentally different and are capable of mediating electric-dipole, magnetic-dipole, and electric-quadrupole transitions on a single electronic resonance. As a consequence, quantum dots can probe electric and magnetic fields simultaneously and can thus be applied for sensing the electromagnetic environment of complex photonic nanostructures. Our study opens the prospect of interfacing quantum dots with optical metamaterials for tailoring the electric and magnetic light-matter interaction at the single-emitter level. 6 pages, 4 figures |
| Databáze: | OpenAIRE |
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