Authors:
Hassan Falah Fakhruldeen,Tahreer Safa’a Mansour,DOI NO:
https://doi.org/10.26782/jmcms.2020.02.00015Keywords:
Surface plasmon (SP),Insulator-Metal-Insulator (IMI),all-optical NOT gates,all-optical signal processing,Abstract
Abstract In this work, the all-optical plasmonic NOT logic gate was proposed using Insulator-Metal-Insulator (IMI) plasmonic waveguides Technology. The proposed all-optical NOT gate is simulated and realized using COMSOL Multiphysics 5.3a software. Recently, plasmonic technology has attracted high attention due to its wide applications in all-optical signal processing. Due to its high localization to metallic surfaces, surface plasmon (SP) may have huge applications in sub-wavelength to guide the optical signal in the waveguides which result in overcoming the diffraction limit problem in conventional optics. The proposed IMI structure is consists of dielectric waveguides plus metallic claddings, which guide the incident light strongly in the insulator region. Our design consists of symmetric nano-rings structures with two straight waveguides which based on IMI structure. The operation of all-optical NOT gate is realized by employing the constructive and destructive interface between the straight waveguides and the nano-rings structured waveguides. There are three ports in the proposed design, input, control and output ports. The activation of the control port is always ON. By changing the structure dimensions, the materials, the phase of the applied optical signal to the input and control ports, the optical transmission at the output port is changed. In our proposed structure, the insulator dielectric material is glass and the metal material is silver. The calculated contrast ratio between (ON and OFF) output states is 3.16 (dB).Refference:
I. B. Wang and G. P. Wang, “Surface plasmon polariton propagation in nanoscale metal gap waveguides,” Optics Letters, vol. 29, pp. 1992-1994, 2004.
II. C. Min, P. Wang, X. Jiao, Y. Deng, and H. Ming, “Beam focusing by metallic nano-slit array containing nonlinear material,” Applied Physics B, vol. 90, pp. 97-99, 2008.
III. Dolatabady and N. Granpayeh, “All-optical logic gates in plasmonic metal-insulator-metal nanowaveguide with slot cavity resonator,” Journal of Nanophotonics, vol. 11, p. 026001, 2017.
IV. H. J. Lezec, A. Degiron, E. Devaux, R. Linke, L. Martin-Moreno, F. Garcia-Vidal, et al., “Beaming light from a subwavelength aperture,” Science, vol. 297, pp. 820-822, 2002.
V. H. Raether, “Surface plasmons on smooth surfaces,” in Surface plasmons on smooth and rough surfaces and on gratings, ed: Springer, 1988, pp. 4-39.
VI. M. Ota, A. Sumimura, M. Fukuhara, Y. Ishii, and M. Fukuda, “Plasmonic-multimode-interference-based logic circuit with simple phase adjustment,” Scientific reports, vol. 6, p. 24546, 2016.
VII. N. Nozhat, H. Alikomak, and M. Khodadadi, “All-optical XOR and NAND logic gates based on plasmonic nanoparticles,” Optics Communications, vol. 392, pp. 208-213, 2017.
VIII. T. Birr, U. Zywietz, P. Chhantyal, B. N. Chichkov, and C. Reinhardt, “Ultrafast surface plasmon-polariton logic gates and half-adder,” Optics Express, vol. 23, pp. 31755-31765, 2015.
IX. T. Nikolajsen, K. Leosson, and S. I. Bozhevolnyi, “Surface plasmon polariton based modulators and switches operating at telecom wavelengths,” Applied Physics Letters, vol. 85, pp. 5833-5835, 2004.
X. T. S. M. Hassan Falah Fakhruldeen, “All-optical NoT Gate Based on Nanoring Silver-Air Plasmonic Waveguide ” International Journal of Engineering & Technology, vol. vol. 7, pp. pp. 2818-2821, 2018.
XI. T. S. M. Hassan Falah Fakhruldeen, Yousif I. Hammadi, “All-Optical Logic Gates Based on Graphene Interferometric Waveguide,” JOURNAL OF MECHANICS OF CONTINUA AND MATHEMATICAL SCIENCES, vol. Vol.-14, pp. 98-110, 2019.
XII. X.-S. Lin and X.-G. Huang, “Tooth-shaped plasmonic waveguide filters with nanometric sizes,” Optics Letters, vol. 33, pp. 2874-2876, 2008.
XIII. Y.-D. Wu, Y.-T. Hsueh, and T.-T. Shih, “Novel All-optical Logic Gates Based on Microring Metal-insulator-metal Plasmonic Waveguides,” in PIERS Proceedings, 2013.