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Localized and delocalized modes in coupled optical micropillar cavities.
Optics Express
|June 24, 2009
Summary
Researchers created coupled optical micropillar Bragg cavities. These structures allow control over quantum dot coupling through localized or delocalized resonator modes, paving the way for advanced photonic devices.
Area of Science:
- Photonics and Optical Engineering
- Quantum Information Science
Background:
- Coupled microcavities are crucial for controlling light-matter interactions.
- Previous designs lacked precise control over mode localization and delocalization.
Purpose of the Study:
- To experimentally realize and simulate coupled optical micropillar Bragg cavities.
- To investigate the behavior of resonator modes within these coupled structures.
- To explore the potential for controlling quantum dot coupling.
Main Methods:
- Fabrication of coupled micropillar Bragg cavities using a focused ion beam system.
- Experimental characterization of resonator modes.
- Two-dimensional simulations to predict resonant wavelengths and optical modes.
Main Results:
- Successful realization of coupled optical micropillar Bragg cavities with varying diameters.
- Observation of both localized and delocalized resonator modes.
- Demonstrated potential for controlling coupling between spatially separated quantum dots.
Conclusions:
- Coupled micropillar Bragg cavities offer a platform for tunable quantum dot interactions.
- The ability to control mode localization/delocalization is key for quantum information applications.
- This work provides a foundation for designing advanced photonic devices for quantum control.
