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Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
Published on: October 13, 2017
Resonance fluorescence from a coherently driven semiconductor quantum dot in a cavity
A Muller1, E B Flagg, P Bianucci
1Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA.
Physical Review Letters
|November 13, 2007
Summary
Semiconductor quantum dots can achieve resonance fluorescence, emitting light like a coherently driven two-level system. This was confirmed by observing a Mollow triplet and nonclassical light emission, demonstrating quantum properties.
Area of Science:
- Quantum optics
- Solid-state physics
- Nanophotonics
Background:
- Resonance fluorescence is the resonant emission from a coherently driven two-level system.
- Semiconductor quantum dots are promising candidates for quantum optical applications.
Purpose of the Study:
- To demonstrate resonance fluorescence in a semiconductor quantum dot.
- To characterize the fluorescence properties under strong excitation regimes.
Main Methods:
- Embedding a quantum dot in a planar optical microcavity.
- Exciting the quantum dot using a waveguide mode to minimize laser scattering.
- Measuring the first-order correlation function g(tau) via interferometry.
- Performing second-order correlation measurements.
Main Results:
- Observed the transition from weak to strong excitation regimes.
- Detected oscillations in the first-order correlation function g(tau).
- Measured a Mollow triplet with a Rabi splitting up to 13.3 microeV.
- Confirmed nonclassical light emission through second-order correlation measurements.
Conclusions:
- Resonance fluorescence is achievable in semiconductor quantum dots.
- The observed Mollow triplet and nonclassical emission highlight the quantum nature of the system.
- This work paves the way for quantum information processing applications using quantum dots.
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