Nonresonant enhancement of spontaneous emission in metal-dielectric-metal plasmon waveguide structures
Journal Article
·
· Physical Review B
OSTI ID:973058
We theoretically investigate the spontaneous emission process of an optical, dipolar emitter in metal-dielectric-metal slab and slot waveguide structures. We find that both structures exhibit strong emission enhancements at nonresonant conditions, due to the tight confinement of modes between two metallic plates. The large enhancement of surface plasmon-polariton excitation enables dipole emission to be preferentially coupled into plasmon waveguide modes. These structures find applications in creating nanoscale local light sources or in generating guided single plasmons in integrated optical circuits.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 973058
- Report Number(s):
- SLAC-REPRINT-2010-050
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 15 Vol. 78; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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