Subwavelength broadband splitters and switches for femtosecond plasmonic signals
Source: Opt. Express 18, 11810 (2010); doi:10.1364/OE.18.011810
Issue Date: August 2010
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Research ToolkitPACS
- 42.79.Ta
Optical computers, logic elements, interconnects, switches; neural networks - 07.05.Kf
Physics data analysis and management - 42.79.Gn
Optical waveguides and couplers - 42.82.Et
Optical waveguides, couplers, and arrays (integrated optics) - 78.68.+m
Optical properties of surfaces - 73.20.Mf
Collective excitations (surface/interface states) - 42.82.Gw
Other integrated-optical elements and systems - 71.45.Gm
Exchange, correlation, dielectric and magnetic response functions, plasmons - 85.60.-q
Optoelectronic devices - 42.65.Re
Ultrafast processes; optical pulse generation and pulse compression - 42.79.Sz
Optical communication systems, multiplexers, and demultiplexers - YEAR: 2010
PUBLICATION DATA
1553-9601 (online)
OSA
Numerical simulations and an analytic approach based on transmission line theory are used to design splitters for nano-plasmonic signal processing that allow to arbitrarily adjust the ratio of transmission from an input into two different output arms. By adjusting the geometrical parameters of the structure, either a high bandwidth or a sharp transmission resonance is obtained. Switching between the two arms can be achieved by modulating the effective refractive index of the waveguide. Employing the instantaneous Kerr effect, switching rates in the THz regime are potentially feasible. The suggested devices are of interest for future applications in nanoplasmonic information processing.
©2010 Optical Society of America
(As supplied by publisher.)
| Permalink: | http://dx.doi.org/10.1364/OE.18.011810 |
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