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Peyskens F, Subramanian AZ, Neutens P, et al. Bright and dark plasmon resonances of nanoplasmonic antennas evanescently coupled with a silicon nitride waveguide. Opt Express. 2015;23(3):3088-101doi: 10.1364/OE.23.003088.
Peyskens, F., Subramanian, A. Z., Neutens, P., Dhakal, A., Van Dorpe, P., Le Thomas, N., & Baets, R. (2015). Bright and dark plasmon resonances of nanoplasmonic antennas evanescently coupled with a silicon nitride waveguide. Optics express, 23(3), 3088-101. https://doi.org/10.1364/OE.23.003088
Peyskens, Frédéric, et al. "Bright and dark plasmon resonances of nanoplasmonic antennas evanescently coupled with a silicon nitride waveguide." Optics express vol. 23,3 (2015): 3088-101. doi: https://doi.org/10.1364/OE.23.003088
Peyskens F, Subramanian AZ, Neutens P, Dhakal A, Van Dorpe P, Le Thomas N, Baets R. Bright and dark plasmon resonances of nanoplasmonic antennas evanescently coupled with a silicon nitride waveguide. Opt Express. 2015 Feb 09;23(3):3088-101. doi: 10.1364/OE.23.003088. PMID: 25836168.
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Opt Express. 2015 Feb 09;23(3):3088-101. doi: 10.1364/OE.23.003088.

Bright and dark plasmon resonances of nanoplasmonic antennas evanescently coupled with a silicon nitride waveguide.

Optics express

Frédéric Peyskens, Ananth Z Subramanian, Pieter Neutens, Ashim Dhakal, Pol Van Dorpe, Nicolas Le Thomas, Roel Baets

PMID: 25836168 DOI: 10.1364/OE.23.003088

Abstract

In this work we investigate numerically and experimentally the resonance wavelength tuning of different nanoplasmonic antennas excited through the evanescent field of a single mode silicon nitride waveguide and study their interaction with this excitation field. Experimental interaction efficiencies up to 19% are reported and it is shown that the waveguide geometry can be tuned in order to optimize this interaction. Apart from the excitation of bright plasmon modes, an efficient coupling between the evanescent field and a dark plasmonic resonance is experimentally demonstrated and theoretically explained as a result of the propagation induced phase delay.

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