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Cavity-Enhanced Raman Emission from a Single Color Center in a Solid
Shuo Sun1, Jingyuan Linda Zhang1, Kevin A Fischer1
1E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA.
Physical Review Letters
|September 8, 2018
Summary
We achieved enhanced Raman emission from a single silicon-vacancy center in diamond using a photonic crystal cavity. This method improves Raman photon generation efficiency by tuning emission and suppressing unwanted light.
Area of Science:
- Solid-state quantum optics
- Nanophotonics
- Quantum information science
Background:
- Single atomic defects in solids are promising quantum emitters.
- Photonic crystal cavities can enhance light-matter interactions.
- Raman emission is a key process for generating photons from quantum emitters.
Purpose of the Study:
- To demonstrate cavity-enhanced Raman emission from a single atomic defect.
- To investigate the role of a monolithic diamond photonic crystal cavity in controlling Raman emission.
- To explore applications in photon-mediated quantum interactions.
Main Methods:
- Coupling a single silicon-vacancy center in diamond to a monolithic diamond photonic crystal cavity.
- Utilizing the cavity for frequency tuning of Raman emission.
- Analyzing the suppression of phonon-induced spontaneous emission.
Main Results:
- Achieved cavity-enhanced Raman emission from a single silicon-vacancy center.
- Demonstrated a 100 GHz tuning range for Raman emission, exceeding spectral inhomogeneity.
- Showed selective suppression of phonon-induced spontaneous emission, improving efficiency.
Conclusions:
- Cavity enhancement significantly improves Raman emission from solid-state quantum emitters.
- This platform enables precise control over quantum emitter properties.
- The results pave the way for photon-mediated many-body interactions in nanophotonic systems.
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