Solving dielectric and plasmonic waveguide dispersion relations on a pocket calculator
2009; Optica Publishing Group; Volume: 17; Issue: 26 Linguagem: Inglês
10.1364/oe.17.024112
ISSN1094-4087
AutoresRohan D. Kekatpure, Aaron C. Hryciw, Edward S. Barnard, Mark L. Brongersma,
Tópico(s)Optical Coatings and Gratings
ResumoWe present a robust iterative technique for solving complex transcendental dispersion equations routinely encountered in integrated optics.Our method especially befits the multilayer dielectric and plasmonic waveguides forming the basis structures for a host of contemporary nanophotonic devices.The solution algorithm ports seamlessly from the real to the complex domain-i.e., no extra complexity results when dealing with leaky structures or those with material/metal loss.Unlike several existing numerical approaches, our algorithm exhibits markedly-reduced sensitivity to the initial guess and allows for straightforward implementation on a pocket calculator.
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