Abstract
This paper presents a three-dimensional concave lens constructed from a metallic slit array. The effective refractive index is estimated to be \(0<n<1\). The actual lens requires spacers in the slits. A lens using a low loss dielectric material for the terahertz frequency band is designed. The fast wave effect is enhanced in order to mitigate the slow wave effect of the dielectric material. Full wave analysis results are obtained by ANSYS HFSS and the focusing effect of the three-dimensional concave lens is confirmed in the terahertz frequency band.
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References
W.E. Kock, Bell Syst. Tech. J. 27(1), 58–82 (1948)
S.S.D. Jones, J. Brown, Nature 163, 324–325 (1949)
J. Brown, The design of metallic delay dielectrics. Proc. Inst. Electr. Eng., Part 3, Radio Commun. Eng. 97(45), 45–48 (1950)
S.B. Cohn, Proc. IRE 41(9), 1177–1183 (1953)
J. Brown, W. Jackson, The relative permittivity of tetragonal arrays of perfectly conducting thin discs. Proc. Inst. Electr. Eng., Part 3, Radio Commun. Eng. 102(1), 37–42 (1955)
W.E. Kock, Proc. Inst. Radio Eng. 34(11), 828–836 (1946)
N.I. Landy, S. Sajuyigbe, J.J. Mock, D.R. Smith, W.J. Padilla, Phys. Rev. Lett. 100, 207402 (2008)
H. Tao, N.I. Landy, C.M. Bingham, X. Zhang, R.D. Averitt, W.J. Padilla, Opt. Express 16(10), 7181–7188 (2008)
H. Tao, C.M. Bingham, A.C. Strikwerda, D. Pilon, D. Shrekenhamer, N.I. Landy, K. Fan, X. Zhang, W.J. Padilla, R.D. Averitt, Phys. Rev. B 78, 241103 (2008)
N.I. Landy, C.M. Bingham, T. Tyler, N. Jokerst, D.R. Smith, W.J. Padilla, Phys. Rev. B 79, 125104 (2009)
H.-T. Chen, J. Zhou, J.F. O’Hara, F. Chen, A.K. Azad, A.J. Taylor, Phys. Rev. Lett. 105, 073901 (2010)
M. Choi, S.H. Lee, Y. Kim, S.B. Kang, J. Shin, M.H. Kwak, K.-Y. Kang, Y.-H. Lee, N. Park, B. Min, Nature 470, 369–374 (2011)
F. Miyamaru, M.W. Takeda, K. Taima, Appl. Phys. Express 2, 042001 (2009)
F. Miyamaru, S. Kubota, K. Taima, K. Takano, M. Hangyo, M.W. Takeda, Appl. Phys. Lett. 96, 081105 (2010)
T. Konno, T. Suzuki, J.C. Young, M. Saigusa, K. Takano, H. Kitahara, M. Hangyo, T. Suzuki, Appl. Phys. A 109(4), 1103–1108 (2012)
R. Menndis, D. Mittleman, Microwave Theory Tech. 58(7), 1993–1998 (2010)
H. Yonamine, Y. Kishi, T. Konno, K. Takano, M. Hangyo, T. Suzuki, in The 73th Autum Meeting (The Japan Society of Applied Physics and Related Societies, 2012), 11p–B1-6, 04–164 (in Japanese)
L. Josefsson, IEEE Trans. Antennas Propag. 41(7), 845–850 (1993)
C.A. Balanis, Antenna Theory: Analysis and Design, 3rd edn. (Wiley, New York, 2005) (Sect. 4.7.1)
Acknowledgments
The authors would like to thank Mr. Yudai Kishi, Mr. Yuki Takebayashi and Mr. Katsunari Irie for their kind support to complete this paper. This research was partially supported by a Grant-in-Aid for Scientific Research on Innovative Areas “Electromagnetic Metamaterial” (No. 23109505) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan, the Strategic Information and Communications R&D Promotion Programme (SCOPE) (No. 122103011) from the Ministry of Internal Affairs and Communications, Accelerating Utilization of University IP Program (No. 439) from Japan Science and Technology Agency (JST), Program for Revitalization Promotion (No. 241FT0462) from Japan Science and Technology Agency (JST), the Takayanagi Memorial Foundation, the Yazaki Memorial Foundation for Science and Technology, the Iketani Science and Technology Foundation, and Futaba Electronics Memorial Foundation.
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Suzuki, T., Yonamine, H., Konno, T. et al. Analysis and design of concave lens with metallic slit array for terahertz wave band. Appl. Phys. A 115, 495–500 (2014). https://doi.org/10.1007/s00339-013-8072-x
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DOI: https://doi.org/10.1007/s00339-013-8072-x