Nano-Scale Vee Yagi-UDA Antenna Based Nano Shell-Silver Coated Silica for Tunable Solid –State Laser Applications

Taha A. Elwi; Yahiea Alnaiemy

doi:10.24237/djes.2019.12101

Authors

Taha A. Elwi
taelwi82@gmail.com
Department of Communication, Al-Mammon University College, Iraq
Yahiea Alnaiemy Department of Computer, College of Science, University of Diyala, Iraq

Keywords:

Antenna, laser, Silica

Abstract

A numerical study on the performance of the nano-scale antenna based on VeeYagi-Uda geometry that is constructed from Nano Shell-Silver Coated Silica (NSSCS) chains is investigated for tunable solid-state laser applications. In this study, a Finite Integral Technique (FIT) based on the formulations of Computer Simulator Technology-MicroWave Studio (CST MWS) software package is invoked to evaluate the antenna parameters such as: Reflection coefficient (S₁₁), gain/ directivity, and directivity. Before conducting the simulation study, the refractive index properties of the NSSCS are evaluated according to Lorentz distribution function of a hetero-structure junction. The proposed antenna shows three resonance modes at 75 THz, and 175 THz, and 266 THz. It is found the best antenna matching, S₁₁<-10dB, at 75 THz and 175 THz about -23 dB and -15 dB, respectively. However, at 266 THz, it is found -3 dB in max. The antenna shows acceptable gain values at the three considered frequencies about 2.5 dBi, 3.5 dBi, and 2 dBi, consistently. Therefore, the antenna exhibits a high directivity at 175 THz and 266 THz in comparison to the first mode at 75 THz. Next, a matching circuit is coupled to a nano-circuitry to tune antenna around 175 THz. The maximum emitted electric field is found to be around 175 THz. Finally, it is found that the introduction of the matching circuit has a significant tuning ability on the second mode at 175 THz; however, at the other two modes the tuning does not show a significant change

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References

.U. Kreibig, G. Bour, A. Hilger, and M. Gartz, Optical properties of cluster-matter: influences of interfaces, Phys. Status Solidi (a), 175, issue 1, Sep (1999), pp. 351–366.

.T. A. Elwi and H. M. Al-Rizzo, Electromagnetic wave interactions with 2-D arrays of single wall carbon nanotubes, Journal of Nanomaterials, volume 2011, Sep. (2011), article ID 709263, pp. 1-8.

.P. Bharadwaj, P. Anger, and L. Novotny, Nanoplasmonic enhancement of single-molecule fluorescence, Nanotechnology, 18 (4), Dec. (2006), pp 1-10.

.T. A. Elwi, A Novel Approach for Modeling the Geometry and Constitutive Parameters of an Armchair Single-Wall Carbon Nanotube Antenna Operating in the NIR Regime, Al-Ma'mon College Journal, issue 24, December (2014), pp. 261-285.

.A. Bouhelier, M. Beversluis, A. Hartschuh, and L. Novotny, Near-field second-harmonic generation induced by local field enhancement, Phys. Rev. Lett. 90, issue 1, Jan. (2003), pp. 1-4.

.M. R. Beversluis, A. Bouhelier, and L. Novotny, Continuum generation from single gold nanostructures through near-field mediated intraband transitions, Phys. Rev. B, 68, issue 11, (Sep. 2003), pp. 1-10.

.M. Danckwerts and L. Novotny, Optical frequency mixing at coupled gold nanoparticles, Phys. Rev. Lett., 98, issue 2, (Jan. 2007), pp. 1-4.

.A. Bouhelier and G. P. Wiederrecht, Excitation of broadband surface plasmonpolaritons: plasmonic continuum spectroscopy, Phys. Rev. B, 71, issue 19, Aug. (2005), pp. 1-7.

.S. K. Ghosh and T. Pal, Interparticle coupling effect on the surface plasmon resonance of gold nanoparticles: from theory to applications, Chem. Rev., 107, Nov. (2007), 4797-4862.

.P. Olk, J. Renger, M. T. Wenzel, and L. M. Eng, Distance dependent spectral tuning of two coupled metal nanoparticles, Nano Lett., 8, issue 4, Mar. (2008), pp. 1174–1178.

.T. A. Elwi and H. M. Al-Rizzo, Fresnel lenses based on nano shell-silver coated silica array for solar cells applications, Progress In Electromagnetics Research B, 32, (June 2011), pp. 263-282.

.T. A. Elwi, H. M. Al-Rizzo, D. G. Rucker, E. Dervishi, Z. Li, and A. S. Biris, Multi-walled carbon nanotube-based RF antennas, Institute of Physics 2010 Nanotechnology, 21,(4), Jane 2010, pp. 1-10.

.J. B. Lassiter, J. Aizpurua, L. I. Hernandez, D. W. Brandl, I. Romero, S. Lal, J. H. Hafner, P. Nordlander, and N. J. Halas, Close encounters between two nanoshells, Nano Lett., 8, issue12, Mar. 2008, pp. 1212–1218.

.C. E. Talley, J. B. Jackson, C. Oubre, N. K. Grady, C. W. Hollars, S. M. Lane, T. R. Huser, P. Nordlander, and N. J. Halas, Surface-enhanced raman scattering from individual Au nanoparticles and nanoparticle dimer substrates, Nano Lett., 5, issue 15, (Jan. 2005), pp. 1569–1574,

.Computer Simulation Technology presentation entitled, Plasmonic Nano Antennas Simulation with CST, which is given by http://www.cst.com.

.C. E. Webb and J. D. C. Jones, Handbook of Laser Technology and Applications: Laser design and laser systems, IOP Publishing Ltd., pp. 574, South Independence Mall West, Philadelphia, PA 19106, USA, Aug. 2004.

.Computer Simulation Technology/ Microwave Studio CST MWS. 2010, http://www.cst.com.