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Investigation of cavity modes and direct observation of Purcell enhancement in 2D photonic crystal defect microcavities
- Source :
- Physica E: Low-dimensional Systems and Nanostructures. 26:351-355
- Publication Year :
- 2005
- Publisher :
- Elsevier BV, 2005.
-
Abstract
- We demonstrate our ability to control and manipulate the optical modes in 2D Photonic Crystal Defect cavities and investigate their coupling to InGaAs self-assembled quantum dots. Our results enable us to probe the nature of individual cavity modes and directly investigate cavity QED phenomena. For the lowest mode volume cavities investigated, consisting of a single missing air hole within a hexagonal lattice, we have measured a clear Purcell enhancement of the light-matter interaction in the weak coupling regime. For QDs on-resonance with localized cavity modes this translates to a shortening of the quantum dot spontaneous emission lifetime by a factor ∼2 when compared to off-resonance dots.
- Subjects :
- Coupling
Mode volume
Materials science
business.industry
Direct observation
Physics::Optics
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Condensed Matter Physics
Optical microcavity
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
law.invention
law
Quantum dot
Physics::Accelerator Physics
Optoelectronics
ddc:530
Hexagonal lattice
Spontaneous emission
business
Photonic crystal
Subjects
Details
- ISSN :
- 13869477
- Volume :
- 26
- Database :
- OpenAIRE
- Journal :
- Physica E: Low-dimensional Systems and Nanostructures
- Accession number :
- edsair.doi.dedup.....29b4ba26b2517265d805a3a7c11d1c48