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Cooperative Resonances in Light Scattering from Two-Dimensional Atomic Arrays
Ephraim Shahmoon1, Dominik S Wild1, Mikhail D Lukin1
1Department of Physics, Harvard University, Cambridge Massachusetts 02138, USA.
Physical Review Letters
|April 4, 2017
Summary
We show how 2D dipolar arrays, with lattice constants near the incident wavelength, act as nearly perfect mirrors. These arrays can also collimate light emission from quantum emitters, enabling novel optical devices.
Area of Science:
- Optics and Photonics
- Condensed Matter Physics
- Quantum Optics
Background:
- Light scattering phenomena are crucial for understanding light-matter interactions.
- Two-dimensional (2D) arrays offer unique platforms for manipulating light propagation.
- Cooperative effects in arrays can lead to novel optical properties.
Purpose of the Study:
- To investigate light scattering from 2D dipolar arrays.
- To demonstrate the potential of these arrays as tunable optical elements.
- To explore applications in advanced optical devices and quantum technologies.
Main Methods:
- Theoretical analysis of light scattering from a 2D dipolar array.
- Investigating the role of lattice constant relative to the incident wavelength.
- Exploring cooperative resonances of surface modes.
Main Results:
- 2D dipolar arrays can function as nearly perfect mirrors across wide angle and frequency ranges.
- Collimated beam formation from individual quantum emitters is achievable.
- Results are explained by cooperative resonances of array surface modes.
Conclusions:
- Tailoring 2D dipolar arrays offers precise control over light scattering.
- These arrays have potential applications in atomically thin metasurfaces and nonlinear optics.
- Experimental realizations with ultracold atoms and 2D semiconductors are feasible.