NDLI: Simulations of long-range surface plasmon polariton waveguides and devices

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Simulations of long-range surface plasmon polariton waveguides and devices

Content Provider	Semantic Scholar
Author	Hermannsson, Pétur Gordon
Copyright Year	2009
Abstract	The properties of long-range surface plasmon polariton waveguides and devices are investigated using the finite element method. In particular, the optical modes of gold stripes and nanowires embedded in a polymer cladding are analyzed as well as how the modes are affected by the waveguide geometry and the resistive heating of the waveguides by a current being passed through the metal cores. This influence of heating on the optical modes can be utilized to realize several active waveguide components, such as variable optical attenuators, adjustable multimode interferometers and directional coupler switches, which are studied in detail. The cross-sectional geometry of the stripe and nanowire waveguides are optimized with respect to coupling to standard single mode optical fibers and waveguide insertion loss. The effect of heating on propagation loss and coupling loss is investigated and transient analysis of the heat transfer is carried out in order to calculate the response times of active device components. The mechanism of attenuation in variable optical attenuators is studied and it is demonstrated how the mode interference in multimode interferometers may be altered by heating in order to realize switching. The influence of cladding geometry on the performance of nanowire waveguides is investigated as well as their tolerance to fabrication errors.
File Format	PDF HTM / HTML
DOI	10.1142/9789814355285_0007
Alternate Webpage(s)	https://skemman.is/bitstream/1946/3991/1/PGH_fixed.pdf
Alternate Webpage(s)	https://doi.org/10.1142/9789814355285_0007
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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