Abstract

We present a design for a subwavelength C-shaped optical waveguide with a 90° junction that efficiently transports light while maintaining tight confinement with an exit spot size of λ7. Finite-difference time-domain simulations of perfect electric conductors and Au C-aperture waveguides are performed for optical frequencies. A design resonant near 780nm is presented, with a spot size of 107nm×107nm and an energy density enhancement factor of 10 for a bent waveguide of total length 1.4μm.

© 2007 Optical Society of America

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  1. L. Sun and L. Hesselink, Opt. Lett. 31, 3606 (2006).
    [CrossRef] [PubMed]
  2. J. Seidel, F. I. Baida, L. Bischoff, B. Guizal, S. Grafstrom, D. Van Labeke, and L. M. Eng, Phys. Rev. B 69, 121405 (2004).
    [CrossRef]
  3. F. J. Garcia de Abajo, J. J. Saenz, I. Campillo, and J. S. Dolado, Opt. Express 7, 7 (2006).
    [CrossRef]
  4. F. J. Garcia-Vidal, S. Moreno, J. A. Porto, and L. Martin-Moreno, Phys. Rev. Lett. 95, 103901 (2005).
    [CrossRef] [PubMed]
  5. Y. Takakura, Phys. Rev. Lett. 86, 5601 (2001).
    [CrossRef] [PubMed]
  6. S. Bozhevolnyi, V. S. Volkov, E. Devaux, J-Y. Laluet, and T. W. Ebbesen, Nature Lett. 440, 508 (2006).
    [CrossRef]
  7. X. Shi and L. Hesselink, J. Appl. Phys. 41, 1632 (2002).
    [CrossRef]
  8. X. Shi, R. Thornton, and L. Hesselink, Opt. Lett. 28, 1320 (2003).
    [CrossRef] [PubMed]
  9. L. Sun, R. Batra, X. Shi, and L. Hesselink, in Proceedings of IEEE Visualization (IEEE, 2004), p. 337.
  10. X. Shi and L. Hesselink, J. Opt. Soc. Am. B 21, 1305 (2004).
    [CrossRef]

2006 (3)

F. J. Garcia de Abajo, J. J. Saenz, I. Campillo, and J. S. Dolado, Opt. Express 7, 7 (2006).
[CrossRef]

S. Bozhevolnyi, V. S. Volkov, E. Devaux, J-Y. Laluet, and T. W. Ebbesen, Nature Lett. 440, 508 (2006).
[CrossRef]

L. Sun and L. Hesselink, Opt. Lett. 31, 3606 (2006).
[CrossRef] [PubMed]

2005 (1)

F. J. Garcia-Vidal, S. Moreno, J. A. Porto, and L. Martin-Moreno, Phys. Rev. Lett. 95, 103901 (2005).
[CrossRef] [PubMed]

2004 (2)

X. Shi and L. Hesselink, J. Opt. Soc. Am. B 21, 1305 (2004).
[CrossRef]

J. Seidel, F. I. Baida, L. Bischoff, B. Guizal, S. Grafstrom, D. Van Labeke, and L. M. Eng, Phys. Rev. B 69, 121405 (2004).
[CrossRef]

2003 (1)

2002 (1)

X. Shi and L. Hesselink, J. Appl. Phys. 41, 1632 (2002).
[CrossRef]

2001 (1)

Y. Takakura, Phys. Rev. Lett. 86, 5601 (2001).
[CrossRef] [PubMed]

Baida, F. I.

J. Seidel, F. I. Baida, L. Bischoff, B. Guizal, S. Grafstrom, D. Van Labeke, and L. M. Eng, Phys. Rev. B 69, 121405 (2004).
[CrossRef]

Batra, R.

L. Sun, R. Batra, X. Shi, and L. Hesselink, in Proceedings of IEEE Visualization (IEEE, 2004), p. 337.

Bischoff, L.

J. Seidel, F. I. Baida, L. Bischoff, B. Guizal, S. Grafstrom, D. Van Labeke, and L. M. Eng, Phys. Rev. B 69, 121405 (2004).
[CrossRef]

Bozhevolnyi, S.

S. Bozhevolnyi, V. S. Volkov, E. Devaux, J-Y. Laluet, and T. W. Ebbesen, Nature Lett. 440, 508 (2006).
[CrossRef]

Campillo, I.

F. J. Garcia de Abajo, J. J. Saenz, I. Campillo, and J. S. Dolado, Opt. Express 7, 7 (2006).
[CrossRef]

Devaux, E.

S. Bozhevolnyi, V. S. Volkov, E. Devaux, J-Y. Laluet, and T. W. Ebbesen, Nature Lett. 440, 508 (2006).
[CrossRef]

Dolado, J. S.

F. J. Garcia de Abajo, J. J. Saenz, I. Campillo, and J. S. Dolado, Opt. Express 7, 7 (2006).
[CrossRef]

Ebbesen, T. W.

S. Bozhevolnyi, V. S. Volkov, E. Devaux, J-Y. Laluet, and T. W. Ebbesen, Nature Lett. 440, 508 (2006).
[CrossRef]

Eng, L. M.

J. Seidel, F. I. Baida, L. Bischoff, B. Guizal, S. Grafstrom, D. Van Labeke, and L. M. Eng, Phys. Rev. B 69, 121405 (2004).
[CrossRef]

Garcia de Abajo, F. J.

F. J. Garcia de Abajo, J. J. Saenz, I. Campillo, and J. S. Dolado, Opt. Express 7, 7 (2006).
[CrossRef]

Garcia-Vidal, F. J.

F. J. Garcia-Vidal, S. Moreno, J. A. Porto, and L. Martin-Moreno, Phys. Rev. Lett. 95, 103901 (2005).
[CrossRef] [PubMed]

Grafstrom, S.

J. Seidel, F. I. Baida, L. Bischoff, B. Guizal, S. Grafstrom, D. Van Labeke, and L. M. Eng, Phys. Rev. B 69, 121405 (2004).
[CrossRef]

Guizal, B.

J. Seidel, F. I. Baida, L. Bischoff, B. Guizal, S. Grafstrom, D. Van Labeke, and L. M. Eng, Phys. Rev. B 69, 121405 (2004).
[CrossRef]

Hesselink, L.

L. Sun and L. Hesselink, Opt. Lett. 31, 3606 (2006).
[CrossRef] [PubMed]

X. Shi and L. Hesselink, J. Opt. Soc. Am. B 21, 1305 (2004).
[CrossRef]

X. Shi, R. Thornton, and L. Hesselink, Opt. Lett. 28, 1320 (2003).
[CrossRef] [PubMed]

X. Shi and L. Hesselink, J. Appl. Phys. 41, 1632 (2002).
[CrossRef]

L. Sun, R. Batra, X. Shi, and L. Hesselink, in Proceedings of IEEE Visualization (IEEE, 2004), p. 337.

Laluet, J-Y.

S. Bozhevolnyi, V. S. Volkov, E. Devaux, J-Y. Laluet, and T. W. Ebbesen, Nature Lett. 440, 508 (2006).
[CrossRef]

Martin-Moreno, L.

F. J. Garcia-Vidal, S. Moreno, J. A. Porto, and L. Martin-Moreno, Phys. Rev. Lett. 95, 103901 (2005).
[CrossRef] [PubMed]

Moreno, S.

F. J. Garcia-Vidal, S. Moreno, J. A. Porto, and L. Martin-Moreno, Phys. Rev. Lett. 95, 103901 (2005).
[CrossRef] [PubMed]

Porto, J. A.

F. J. Garcia-Vidal, S. Moreno, J. A. Porto, and L. Martin-Moreno, Phys. Rev. Lett. 95, 103901 (2005).
[CrossRef] [PubMed]

Saenz, J. J.

F. J. Garcia de Abajo, J. J. Saenz, I. Campillo, and J. S. Dolado, Opt. Express 7, 7 (2006).
[CrossRef]

Seidel, J.

J. Seidel, F. I. Baida, L. Bischoff, B. Guizal, S. Grafstrom, D. Van Labeke, and L. M. Eng, Phys. Rev. B 69, 121405 (2004).
[CrossRef]

Shi, X.

X. Shi and L. Hesselink, J. Opt. Soc. Am. B 21, 1305 (2004).
[CrossRef]

X. Shi, R. Thornton, and L. Hesselink, Opt. Lett. 28, 1320 (2003).
[CrossRef] [PubMed]

X. Shi and L. Hesselink, J. Appl. Phys. 41, 1632 (2002).
[CrossRef]

L. Sun, R. Batra, X. Shi, and L. Hesselink, in Proceedings of IEEE Visualization (IEEE, 2004), p. 337.

Sun, L.

L. Sun and L. Hesselink, Opt. Lett. 31, 3606 (2006).
[CrossRef] [PubMed]

L. Sun, R. Batra, X. Shi, and L. Hesselink, in Proceedings of IEEE Visualization (IEEE, 2004), p. 337.

Takakura, Y.

Y. Takakura, Phys. Rev. Lett. 86, 5601 (2001).
[CrossRef] [PubMed]

Thornton, R.

Van Labeke, D.

J. Seidel, F. I. Baida, L. Bischoff, B. Guizal, S. Grafstrom, D. Van Labeke, and L. M. Eng, Phys. Rev. B 69, 121405 (2004).
[CrossRef]

Volkov, V. S.

S. Bozhevolnyi, V. S. Volkov, E. Devaux, J-Y. Laluet, and T. W. Ebbesen, Nature Lett. 440, 508 (2006).
[CrossRef]

J. Appl. Phys. (1)

X. Shi and L. Hesselink, J. Appl. Phys. 41, 1632 (2002).
[CrossRef]

J. Opt. Soc. Am. B (1)

Nature Lett. (1)

S. Bozhevolnyi, V. S. Volkov, E. Devaux, J-Y. Laluet, and T. W. Ebbesen, Nature Lett. 440, 508 (2006).
[CrossRef]

Opt. Express (1)

F. J. Garcia de Abajo, J. J. Saenz, I. Campillo, and J. S. Dolado, Opt. Express 7, 7 (2006).
[CrossRef]

Opt. Lett. (2)

Phys. Rev. B (1)

J. Seidel, F. I. Baida, L. Bischoff, B. Guizal, S. Grafstrom, D. Van Labeke, and L. M. Eng, Phys. Rev. B 69, 121405 (2004).
[CrossRef]

Phys. Rev. Lett. (2)

F. J. Garcia-Vidal, S. Moreno, J. A. Porto, and L. Martin-Moreno, Phys. Rev. Lett. 95, 103901 (2005).
[CrossRef] [PubMed]

Y. Takakura, Phys. Rev. Lett. 86, 5601 (2001).
[CrossRef] [PubMed]

Other (1)

L. Sun, R. Batra, X. Shi, and L. Hesselink, in Proceedings of IEEE Visualization (IEEE, 2004), p. 337.

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Figures (4)

Fig. 1
Fig. 1

Waveguide simulation schematic showing the possible orientations for a 90 ° bend in a C-aperture waveguide, as well as the cross-sectional dimensions of the simulated structures.

Fig. 2
Fig. 2

Enhancement factor, straight PEC waveguide; spot intensity and FWHM (inset). Measurement was taken three cells ( 25.8 nm ) from the exit. Spot size was measured for a 1800 nm waveguide.

Fig. 3
Fig. 3

Enhancement factor, bent PEC Waveguide: upward, rightward and leftward (inset, same intensity scale). Measurement was taken three cells ( 25.8 nm ) from the exit.

Fig. 4
Fig. 4

Enhancement factor, upward bent gold waveguide; spot intensity and FWHM (inset). Measurement was taken three cells ( 17.85 nm ) from the exit. Spot size was measured for a 2140 nm waveguide.

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