Nanoscale continuous quantum light sources based on driven dipole emitter arrays
| Autor: | M. Moreno-Cardoner, Helmut Ritsch, Raphael Holzinger |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physics
Quantum Physics Photon Physics and Astronomy (miscellaneous) Atomic Physics (physics.atom-ph) Solid angle FOS: Physical sciences Applied Physics (physics.app-ph) Physics - Applied Physics 01 natural sciences Molecular physics 3. Good health 010305 fluids & plasmas Physics - Atomic Physics Delocalized electron Dipole Wavelength 0103 physical sciences Atom Quantum Physics (quant-ph) 010306 general physics Quantum Order of magnitude |
| Zdroj: | Applied Physics Letter |
| Popis: | Regular arrays of two-level emitters at distances smaller that the transition wavelength collectively scatter, absorb and emit photons. The strong inter-particle dipole coupling creates large energy shifts of the collective delocalized excitations, which generates a highly nonlinear response at the single and few photon level. This should allow to implement nanoscale non-classical light sources via weak coherent illumination. At the generic tailored examples of regular chains or polygons we show that the fields emitted perpendicular to the illumination direction exhibit a strong directional confinement with genuine quantum properties as antibunching. For short interparticle distances superradiant directional emission can enhance the radiated intensity by an order of magnitude compared to a single atom focused to a strongly confined solid angle but still keeping the anti-bunching parameter at the level of $g^{(2)}(0) \approx 10^{-2}$. 13 pages, 9 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|