Abstract
Terahertz spoof plasmon propagation in a vacuum region sandwiched by a planar and corrugated parallel metal plate has been analytically and numerically investigated. Metallic corrugations in the form of long rectangular grooves in transverse direction support confined surface plasma wave propagation in the THz regime. The parallel metal surface in close proximity ensures the propagation of spoof plasmons in a highly confined manner. A theoretical dispersion relation is obtained corresponding to the waveguide design using the effective medium approximation method which confirms plasmonic behavior. Further, the technique of finite difference time domain method is used to study the terahertz mode propagation along the waveguide. The attenuation coefficient and propagation length are calculated to understand the guided wave capability of the waveguide configuration. This study is helpful to analytically understand the role of corrugations in parallel plate configuration in guiding the terahertz modes and hence can be significant in designing plasmonic devices for terahertz photonics
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References
M. Islam, M.E. Barbhuyan, Slow-light application using dielectrics in a metallic terahertz plasmonic waveguide. JOSA A 37(6), 1053–1059 (2020)
M. Islam, B.K. Bhowmik, K. Dhriti, D. Mohan, A. Ahmad, G. Kumar et al., Thin film sensing in a planar terahertz meta-waveguide. J. Opt. 24(6), 064016 (2022)
A. Munir, A. Setiawan, Transmission loss reduction of circular terahertz waveguide using dielectric-lined method. Int. J. Electr. Eng. Inform. 5(3), 377–385 (2013)
Y. Zhang, Y. Zhang, D. Lu, D. Wang, M. Liu, S. Wang, P. Zhao, Z. Zhang, J. Yao, Propagation characteristics of thz radiation in hollow rectangle metal waveguide. J. Phys.: Conf. Series 276, 012229 (2011)
R. Mendis, D.M. Mittleman, Comparison of the lowest-order transverse-electric \((te_1)\) and transverse-magnetic \((tem)\) modes of the parallel-plate waveguide for terahertz pulse applications. Opt. Express 17(17), 14839–14850 (2009)
T. Hidaka, H. Minamide, H. Ito, S.-I. Maeta, T. Akiyama, Ferroelectric pvdf cladding terahertz waveguide. In: Optical Information, Data Processing and Storage, and Laser Communication Technologies, vol. 5135, pp. 70–77. SPIE (2003)
H. Han, H. Park, M. Cho, J. Kim, Terahertz pulse propagation in a plastic photonic crystal fiber. Appl. Phys. Lett. 80(15), 2634–2636 (2002)
C.R. Williams, S.R. Andrews, S. Maier, A. Fernández-Domínguez, L. Martín-Moreno, F. García-Vidal, Highly confined guiding of terahertz surface plasmon polaritons on structured metal surfaces. Nat. Photon. 2(3), 175–179 (2008)
G. Kumar, S. Pandey, A. Cui, A. Nahata, Planar plasmonic terahertz waveguides based on periodically corrugated metal films. New J. Phys. 13(3), 033024 (2011)
E.S. Lee, J.S. Jang, S.H. Kim, Y.B. Ji, T.-I. Jeon, Propagation of single-mode and multi-mode terahertz radiation through a parallel-plate waveguide. J. Korean Phys. Soc. 53(4), 1891–1896 (2008)
R. Mendis, D.M. Mittleman, An investigation of the lowest-order transverse-electric (te1) mode of the parallel-plate waveguide for thz pulse propagation. J. Opt. Soc. Am. B 26(9), 6–13 (2009)
A. Vosoogh, A.U. Zaman, V. Vassilev, J. Yang, Zero-gap waveguide: a parallel plate waveguide with flexible mechanical assembly for mm-wave antenna applications. IEEE Trans. Comp. Packag. Manuf. Technol. 8(12), 2052–2059 (2018)
P. Navaeipour, I. Al-Naib, M.M. Dignam, Third-harmonic terahertz generation from graphene in a parallel-plate waveguide. Phys. Rev. A 97, 013847 (2018)
R. Mendis, D. Grischkowsky, Thz interconnect with low-loss and low-group velocity dispersion. IEEE Microw. Wirel. Comp. Lett. 11(11), 444–446 (2001)
X. Zhang, Q. Xu, L. Xia, Y. Li, J. Gu, Z. Tian, C. Ouyang, J. Han, W. Zhang, Terahertz surface plasmonic waves: a review. Adv. Photon. 2(1), 014001–014001 (2020)
R.S. Anwar, H. Ning, L. Mao, Recent advancements in surface plasmon polaritons-plasmonics in subwavelength structures in microwave and terahertz regimes. Digit. Commun. Netw. 4(4), 244–257 (2018)
J. Pendry, L. Martin-Moreno, F. Garcia-Vidal, Mimicking surface plasmons with structured surfaces. Science 305(5685), 847–848 (2004)
S. Li, M.M. Jadidi, T.E. Murphy, G. Kumar, Terahertz surface plasmon polaritons on a semiconductor surface structured with periodic v-grooves. Opt. Express 21(6), 7041–7049 (2013)
M. Islam, G. Kumar, Terahertz surface plasmons propagation through periodically tilted pillars and control on directional properties. J. Phys. D: Appl. Phys. 49, 435104 (2016)
M. Born, E. Wolf, Principles of Optics: Electromagnetic Theory of Propagation, Interference and Diffraction of Light, Amsterdam] (2013)
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The author, GK would like to acknowledge the financial support from Science and Engineering Research Board (CRG/2019/002807).
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Kaur, R., Islam, M., Agarwal, P.C. et al. Highly confined terahertz spoof plasmon propagation in a parallel plate corrugated waveguide. J Opt (2023). https://doi.org/10.1007/s12596-023-01529-8
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DOI: https://doi.org/10.1007/s12596-023-01529-8