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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 24 — Dec. 15, 2013
  • pp: 5311–5314

Dielectric bow-tie nanocavity

Qijing Lu, Fang-Jie Shu, and Chang-Ling Zou  »View Author Affiliations

Optics Letters, Vol. 38, Issue 24, pp. 5311-5314 (2013)

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We propose a novel dielectric bow-tie (DBT) nanocavity consisting of two opposing tip-to-tip triangle semiconductor nanowires, whose end faces are coated by silver nanofilms. Based on the advantages of the dielectric slot and tip structures, and the high reflectivity of the silver mirror, light can be confined in this nanocavity with low loss. We demonstrate that at 4.5 K (300 K) around the resonance wavelength of 1550 nm, the mode excited in this nanocavity has a deep subwavelength mode volume of 2.8×104μm3 and a high quality factor of 4.9×104 (401.3), corresponding to an ultrahigh Purcell factor of 1.6×107 (1.36×105). This DBT nanocavity may find applications for integrated nanophotonic circuits, such as high-efficiency single photon sources, thresholdless nanolasers, and strong coupling in cavity quantum electrodynamics experiments.

© 2013 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.5750) Optical devices : Resonators

ToC Category:
Integrated Optics

Original Manuscript: August 23, 2013
Revised Manuscript: November 13, 2013
Manuscript Accepted: November 13, 2013
Published: December 5, 2013

Qijing Lu, Fang-Jie Shu, and Chang-Ling Zou, "Dielectric bow-tie nanocavity," Opt. Lett. 38, 5311-5314 (2013)

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  1. K. J. Vahala, Nature 424, 839 (2003). [CrossRef]
  2. S. M. Spillane, T. J. Kippenberg, and K. J. Vahala, Nature 415, 621 (2002). [CrossRef]
  3. F. Vollmer and S. Arnold, Nat. Methods 5, 591 (2008). [CrossRef]
  4. V. Ilchenko, A. Savchenkov, A. Matsko, and L. Maleki, Phys. Rev. Lett. 92, 043903 (2004). [CrossRef]
  5. T. Aoki, B. Dayan, E. Wilcut, W. P. Bowen, A. S. Parkins, T. J. Kippenberg, K. J. Vahala, and H. J. Kimble, Nature 443, 671 (2006). [CrossRef]
  6. T. J. Kippenberg and K. J. Vahala, Science 321, 1172 (2008). [CrossRef]
  7. M.-K. Seo, S.-H. Kwon, H.-S. Ee, and H.-G. Park, Nano Lett. 9, 4078 (2009). [CrossRef]
  8. K. J. Russell, T. L. Liu, S. Cui, and E. L. Hu, Nat. Photonics 6, 459 (2012). [CrossRef]
  9. X. Xiong, C.-L. Zou, X.-F. Ren, A.-P. Liu, Y.-X. Ye, F.-W. Sun, and G.-C. Guo, Laser Photon. Rev. 7, 901 (2013). [CrossRef]
  10. R. F. Oulton, V. J. Sorger, T. Zentgraf, R.-M. Ma, C. Gladden, L. Dai, G. Bartal, and X. Zhang, Nature 461, 629 (2009). [CrossRef]
  11. M. T. Hill, Y. S. Oei, B. Smalbrugge, Y. Zhu, T. De Vries, P. J. Van Veldhoven, F. W. M. Van Otten, T. J. Eijkemans, J. P. Turkiewicz, H. De Waardt, E. J. Geluk, S. H. Kwon, Y. H. Lee, R. Notzel, and M. K. Smit, Nat. Photonics 1, 589 (2007). [CrossRef]
  12. M. Khajavikhan, A. Simic, M. Katz, J. H. Lee, B. Slutsky, A. Mizrahi, V. Lomakin, and Y. Fainman, Nature 482, 204 (2012). [CrossRef]
  13. J. Yao, X. Yang, X. Yin, G. Bartal, and X. Zhang, Proc. Natl. Acad. Sci. U.S.A. 108, 11327 (2011). [CrossRef]
  14. V. R. Almeida, Q. Xu, C. A. Barrios, R. R. Panepucci, and M. Lipson, Opt. Lett. 29, 1209 (2004). [CrossRef]
  15. S. Noda, M. Fujita, and T. Asano, Nat. Photonics 1, 449 (2007). [CrossRef]
  16. R. Kirchain and L. C. Kimerling, Nat. Photonics 1, 303 (2007). [CrossRef]
  17. P. B. Johnson and R. W. Christy, Phys. Rev. B 6, 4370 (1972). [CrossRef]
  18. L. Dobrzynski and A. A. Maradudin, Phys. Rev. B 6, 3810 (1972). [CrossRef]
  19. Q. J. Lu, C.-L. Zou, D. R. Chen, P. Zhou, and G. Z. Wu, “Extreme light confinement and low loss in hybrid plasmonic waveguide,” Opt. Commun. (submitted).
  20. S.-W. Chang, C.-Y. A. Ni, and S.-L. Chuang, Opt. Express 16, 10580 (2008). [CrossRef]
  21. J.-S. G. Bouillard, W. Dickson, D. P. O’Connor, G. A. Wurtz, and A. V. Zayats, Nano Lett. 12, 1561 (2012). [CrossRef]
  22. C.-L. Zou, F.-W. Sun, C.-H. Dong, X.-F. Ren, J.-M. Cui, X.-D. Chen, Z.-F. Han, and G.-C. Guo, Opt. Lett. 36, 3630 (2011). [CrossRef]
  23. R. A. Matula, J. Phys. Chem. Ref. Data 8, 1147 (1979). [CrossRef]

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