УДК: 543.429, 681.785

Broad comparison between Au nanospheres, nanorods and nanorings as an S-bend plasmon waveguide at optical C-band spectrum

Ahmadivand, Arash, Golmohammadi, Saeed, Rostami, Ali

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Arash Ahmadivand, Saeed Golmohammadi, Ali Rostami Broad comparison between Au nanospheres, nanorods and nanorings as an S-bend plasmon waveguide at optical C-band spectrum (Сравнение Au наносфер, нанотрубок и наноколец, используемых в качестве плазмонных волноводов S-формы в оптическом C-band спектральном диапазоне) [на англ. яз.] // Оптический журнал. 2013. Т. 80. № 2. С. 15–23.

Arash Ahmadivand, Saeed Golmohammadi, Ali Rostami Broad comparison between Au nanospheres, nanorods and nanorings as an S-bend plasmon waveguide at optical C-band spectrum (Сравнение Au наносфер, нанотрубок и наноколец, используемых в качестве плазмонных волноводов S-формы в оптическом C-band спектральном диапазоне) [in English] // Opticheskii Zhurnal. 2013. V. 80. № 2. P. 15–23.

For citation (Journal of Optical Technology):

Arash Ahmadivand, Saeed Golmohammadi, and Ali Rostami, "Broad comparison between Au nanospheres, nanorods and nanorings as an S-bend plasmon waveguide at optical C-band spectrum," Journal of Optical Technology. 80(2), 80-87 (2013). https://doi.org/10.1364/JOT.80.000080

Abstract:

The integration of optical devices demands the fabrication of waveguides for electromagnetic energy below the diffraction limit of light. In this work, we have investigated the possibility of utilizing specific chains of closely spaced noble metal nanoparticles for waveguides beyond diffraction limit. Accordingly, we have employed Au and Ag nanorings in order to transport the optical energy through the plasmon waveguide at optical C-band spectrum (λ≈1550 nm). In proposed waveguides, we try to select the best structure via comparison between their transmission losses and group velocities of propagated energy. Three-dimensional simulations based on finite-difference time-domain algorithm (FDTD) are used to determine the related geometrical values. It is shown that nanoring’s geometrical tunability and extra degree of freedom (DoFs) in its geometry can cause the optical energy to transport at 1550 nm with higher efficiency and lower losses in comparison with those of the other shapes of nanoparticles such as nanospheres and nanorods.

Keywords:

S-bend, transmitted power, transmission loss, nanoparticle, optical energy, optical communication band

OCIS codes: 130.3130, 190.3970, 300.6490

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