Abstract

We propose a metamaterial approach to route terahertz waves that features subwavelength confinement in the transverse plane. The guiding mechanism is based on geometrically induced electromagnetic modes sustained by corrugated metallic wedges, whose characteristics resemble those of wedge plasmon polaritons at telecom and optical frequencies. Additionally, frequency selective focusing and slowing down of terahertz radiation based on the proposed wedge waveguides are presented.

© 2009 Optical Society of America

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2008

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, Nat. Photonics 2, 175 (2008).
[CrossRef]

A. I. Fernández-Domínguez, C. R. Williams, F. J. García-Vidal, L. Martín-Moreno, S. R. Andrews, and S. A. Maier, Appl. Phys. Lett. 93, 141109 (2008).
[CrossRef]

E. Moreno, S. G. Rodrigo, S. I. Bozhevolnyi, L. Martín-Moreno, and F. J. García-Vidal, Phys. Rev. Lett. 100, 023901 (2008).
[CrossRef] [PubMed]

L. Shen, X. Chen, Y. Zhong, and K. Agarwal, Phys. Rev. B 77, 075408 (2008).
[CrossRef]

L. Shen, X. Chen, and T.-J. Yang, Opt. Express 16, 3326 (2008).
[CrossRef] [PubMed]

2006

S. A. Maier, S. R. Andrews, L. Martín-Moreno, and F. J. García-Vidal, Phys. Rev. Lett. 97, 176805 (2006).
[CrossRef] [PubMed]

2005

F. J. García-Vidal, L. Martín-Moreno, and J. B. Pendry, J. Opt. A 7, S97 (2005).
[CrossRef]

A. P. Hibbins, B. R. Evans, and J. R. Sambles, Science 308, 670 (2005).
[CrossRef] [PubMed]

2004

K. Wang and D. M. Mittleman, Nature 432, 376 (2004).
[CrossRef] [PubMed]

J. B. Pendry, L. Martín-Moreno, and F. J. García-Vidal, Science 305, 847 (2004).
[CrossRef] [PubMed]

2002

B. F. Ferguson and X.-C. Zhang, Nat. Mater. 1, 26 (2002).
[CrossRef]

2001

1983

Agarwal, K.

L. Shen, X. Chen, Y. Zhong, and K. Agarwal, Phys. Rev. B 77, 075408 (2008).
[CrossRef]

Alexander, R. W.

Andrews, S. R.

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, Nat. Photonics 2, 175 (2008).
[CrossRef]

A. I. Fernández-Domínguez, C. R. Williams, F. J. García-Vidal, L. Martín-Moreno, S. R. Andrews, and S. A. Maier, Appl. Phys. Lett. 93, 141109 (2008).
[CrossRef]

S. A. Maier, S. R. Andrews, L. Martín-Moreno, and F. J. García-Vidal, Phys. Rev. Lett. 97, 176805 (2006).
[CrossRef] [PubMed]

Bell, R. J.

Bell, R. R.

Bell, S. E.

Bozhevolnyi, S. I.

E. Moreno, S. G. Rodrigo, S. I. Bozhevolnyi, L. Martín-Moreno, and F. J. García-Vidal, Phys. Rev. Lett. 100, 023901 (2008).
[CrossRef] [PubMed]

Chen, X.

L. Shen, X. Chen, Y. Zhong, and K. Agarwal, Phys. Rev. B 77, 075408 (2008).
[CrossRef]

L. Shen, X. Chen, and T.-J. Yang, Opt. Express 16, 3326 (2008).
[CrossRef] [PubMed]

Evans, B. R.

A. P. Hibbins, B. R. Evans, and J. R. Sambles, Science 308, 670 (2005).
[CrossRef] [PubMed]

Ferguson, B. F.

B. F. Ferguson and X.-C. Zhang, Nat. Mater. 1, 26 (2002).
[CrossRef]

Fernández-Domínguez, A. I.

A. I. Fernández-Domínguez, C. R. Williams, F. J. García-Vidal, L. Martín-Moreno, S. R. Andrews, and S. A. Maier, Appl. Phys. Lett. 93, 141109 (2008).
[CrossRef]

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, Nat. Photonics 2, 175 (2008).
[CrossRef]

García-Vidal, F. J.

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, Nat. Photonics 2, 175 (2008).
[CrossRef]

A. I. Fernández-Domínguez, C. R. Williams, F. J. García-Vidal, L. Martín-Moreno, S. R. Andrews, and S. A. Maier, Appl. Phys. Lett. 93, 141109 (2008).
[CrossRef]

E. Moreno, S. G. Rodrigo, S. I. Bozhevolnyi, L. Martín-Moreno, and F. J. García-Vidal, Phys. Rev. Lett. 100, 023901 (2008).
[CrossRef] [PubMed]

S. A. Maier, S. R. Andrews, L. Martín-Moreno, and F. J. García-Vidal, Phys. Rev. Lett. 97, 176805 (2006).
[CrossRef] [PubMed]

F. J. García-Vidal, L. Martín-Moreno, and J. B. Pendry, J. Opt. A 7, S97 (2005).
[CrossRef]

J. B. Pendry, L. Martín-Moreno, and F. J. García-Vidal, Science 305, 847 (2004).
[CrossRef] [PubMed]

Grischkowsky, D.

Hibbins, A. P.

A. P. Hibbins, B. R. Evans, and J. R. Sambles, Science 308, 670 (2005).
[CrossRef] [PubMed]

Long, L. L.

Maier, S. A.

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, Nat. Photonics 2, 175 (2008).
[CrossRef]

A. I. Fernández-Domínguez, C. R. Williams, F. J. García-Vidal, L. Martín-Moreno, S. R. Andrews, and S. A. Maier, Appl. Phys. Lett. 93, 141109 (2008).
[CrossRef]

S. A. Maier, S. R. Andrews, L. Martín-Moreno, and F. J. García-Vidal, Phys. Rev. Lett. 97, 176805 (2006).
[CrossRef] [PubMed]

Martín-Moreno, L.

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, Nat. Photonics 2, 175 (2008).
[CrossRef]

A. I. Fernández-Domínguez, C. R. Williams, F. J. García-Vidal, L. Martín-Moreno, S. R. Andrews, and S. A. Maier, Appl. Phys. Lett. 93, 141109 (2008).
[CrossRef]

E. Moreno, S. G. Rodrigo, S. I. Bozhevolnyi, L. Martín-Moreno, and F. J. García-Vidal, Phys. Rev. Lett. 100, 023901 (2008).
[CrossRef] [PubMed]

S. A. Maier, S. R. Andrews, L. Martín-Moreno, and F. J. García-Vidal, Phys. Rev. Lett. 97, 176805 (2006).
[CrossRef] [PubMed]

F. J. García-Vidal, L. Martín-Moreno, and J. B. Pendry, J. Opt. A 7, S97 (2005).
[CrossRef]

J. B. Pendry, L. Martín-Moreno, and F. J. García-Vidal, Science 305, 847 (2004).
[CrossRef] [PubMed]

Mendis, R.

Mittleman, D. M.

K. Wang and D. M. Mittleman, Nature 432, 376 (2004).
[CrossRef] [PubMed]

Moreno, E.

E. Moreno, S. G. Rodrigo, S. I. Bozhevolnyi, L. Martín-Moreno, and F. J. García-Vidal, Phys. Rev. Lett. 100, 023901 (2008).
[CrossRef] [PubMed]

Ordal, M. A.

Pendry, J. B.

F. J. García-Vidal, L. Martín-Moreno, and J. B. Pendry, J. Opt. A 7, S97 (2005).
[CrossRef]

J. B. Pendry, L. Martín-Moreno, and F. J. García-Vidal, Science 305, 847 (2004).
[CrossRef] [PubMed]

Rodrigo, S. G.

E. Moreno, S. G. Rodrigo, S. I. Bozhevolnyi, L. Martín-Moreno, and F. J. García-Vidal, Phys. Rev. Lett. 100, 023901 (2008).
[CrossRef] [PubMed]

Sambles, J. R.

A. P. Hibbins, B. R. Evans, and J. R. Sambles, Science 308, 670 (2005).
[CrossRef] [PubMed]

Shen, L.

L. Shen, X. Chen, Y. Zhong, and K. Agarwal, Phys. Rev. B 77, 075408 (2008).
[CrossRef]

L. Shen, X. Chen, and T.-J. Yang, Opt. Express 16, 3326 (2008).
[CrossRef] [PubMed]

Wang, K.

K. Wang and D. M. Mittleman, Nature 432, 376 (2004).
[CrossRef] [PubMed]

Ward, C. A.

Williams, C. R.

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, Nat. Photonics 2, 175 (2008).
[CrossRef]

A. I. Fernández-Domínguez, C. R. Williams, F. J. García-Vidal, L. Martín-Moreno, S. R. Andrews, and S. A. Maier, Appl. Phys. Lett. 93, 141109 (2008).
[CrossRef]

Yang, T. -J.

Zhang, X. -C.

B. F. Ferguson and X.-C. Zhang, Nat. Mater. 1, 26 (2002).
[CrossRef]

Zhong, Y.

L. Shen, X. Chen, Y. Zhong, and K. Agarwal, Phys. Rev. B 77, 075408 (2008).
[CrossRef]

Appl. Opt.

Appl. Phys. Lett.

A. I. Fernández-Domínguez, C. R. Williams, F. J. García-Vidal, L. Martín-Moreno, S. R. Andrews, and S. A. Maier, Appl. Phys. Lett. 93, 141109 (2008).
[CrossRef]

J. Opt. A

F. J. García-Vidal, L. Martín-Moreno, and J. B. Pendry, J. Opt. A 7, S97 (2005).
[CrossRef]

Nat. Mater.

B. F. Ferguson and X.-C. Zhang, Nat. Mater. 1, 26 (2002).
[CrossRef]

Nat. Photonics

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, Nat. Photonics 2, 175 (2008).
[CrossRef]

Nature

K. Wang and D. M. Mittleman, Nature 432, 376 (2004).
[CrossRef] [PubMed]

Opt. Express

Opt. Lett.

Phys. Rev. B

L. Shen, X. Chen, Y. Zhong, and K. Agarwal, Phys. Rev. B 77, 075408 (2008).
[CrossRef]

Phys. Rev. Lett.

S. A. Maier, S. R. Andrews, L. Martín-Moreno, and F. J. García-Vidal, Phys. Rev. Lett. 97, 176805 (2006).
[CrossRef] [PubMed]

E. Moreno, S. G. Rodrigo, S. I. Bozhevolnyi, L. Martín-Moreno, and F. J. García-Vidal, Phys. Rev. Lett. 100, 023901 (2008).
[CrossRef] [PubMed]

Science

J. B. Pendry, L. Martín-Moreno, and F. J. García-Vidal, Science 305, 847 (2004).
[CrossRef] [PubMed]

A. P. Hibbins, B. R. Evans, and J. R. Sambles, Science 308, 670 (2005).
[CrossRef] [PubMed]

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Figures (3)

Fig. 1
Fig. 1

Upper panel, sketch of the proposed waveguiding scheme. White arrow indicates the direction of propagation. Lower panel, two lowest spoof WPP bands for wedges with three different depths, t: 150 μ m (circles), 100 μ m (squares), and 50 μ m (diamonds). The rest of the geometric parameters are described in the text. Insets (a) and (b) show snapshots of the longitudinal component of the electric field at the edge of the two bands for the case t = 100 μ m .

Fig. 2
Fig. 2

Dispersion relation of the fundamental spoof WPP traveling along corrugated wedges for different θ. Dashed black line shows the dispersion band corresponding to the flat ( θ = 180 ° ) case. The horizontal arrows indicate the frequencies for which the propagation length is estimated (see the text). Lower insets show the electric field amplitudes at the band edge for (a) θ = 20 ° and (b) θ = 60 ° . In both insets, λ / 2 is represented by white bars.

Fig. 3
Fig. 3

(a) Left inset, corrugated PEC wedge with θ varying smoothly along the z direction from 60° to 20°. Main panel, electric field amplitude versus z along the line located 100 μ m above the structure apex. Three different frequencies are considered: 0.12 THz (solid curve), 0.16 THz (dashed curve), and 0.20 THz (dashed-dotted curve). Panels (b)–(d) depict the electric field amplitude within the x z plane located 100 μ m above the apex for these three frequencies. Dashed arrows indicate the position of the maxima of amplitude shown in panel (a).

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