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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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