OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 20 — Sep. 27, 2010
  • pp: 20839–20844

Tailoring the dispersion behavior of silicon nanophotonic slot waveguides

Sara Mas, José Caraquitena, José V. Galán, Pablo Sanchis, and Javier Martí  »View Author Affiliations

Optics Express, Vol. 18, Issue 20, pp. 20839-20844 (2010)

View Full Text Article

Enhanced HTML    Acrobat PDF (1450 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We investigate the chromatic dispersion properties of silicon channel slot waveguides in a broad spectral region centered at ~1.5 μm. The variation of the dispersion profile as a function of the slot fill factor, i.e., the ratio between the slot and waveguide widths, is analyzed. Symmetric as well as asymmetric geometries are considered. In general, two different dispersion regimes are identified. Furthermore, our analysis shows that the zero and/or the peak dispersion wavelengths can be tailored by a careful control of the geometrical waveguide parameters including the cross-sectional area, the slot fill factor, and the slot asymmetry degree.

© 2010 OSA

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.7370) Optical devices : Waveguides
(260.2030) Physical optics : Dispersion

ToC Category:
Integrated Optics

Original Manuscript: February 23, 2010
Revised Manuscript: March 31, 2010
Manuscript Accepted: April 8, 2010
Published: September 17, 2010

Sara Mas, José Caraquitena, José V. Galán, Pablo Sanchis, and Javier Martí, "Tailoring the dispersion behavior of silicon nanophotonic slot waveguides," Opt. Express 18, 20839-20844 (2010)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. M. Lipson, “Guiding, modulating, and emitting light on silicon – Challenges and opportunities,” J. Lightwave Technol. 23(12), 4222–4238 (2005). [CrossRef]
  2. R. Soref, “The past, present, and future of silicon photonics,” IEEE J. Sel. Top. Quantum Electron. 12(6), 1678–1687 (2006). [CrossRef]
  3. B. Jalali and S. Fathpour, “Silicon photonics,” J. Lightwave Technol. 24(12), 4600–4615 (2006). [CrossRef]
  4. H. K. Tsang, C. S. Wong, T. K. Liang, I. E. Day, S. W. Roberts, A. Harpin, J. Drake, and M. Asghari, “Optical dispersion, two-photon absorption and self-phase modulation in silicon waveguides at 1.5 μm wavelength,” Appl. Phys. Lett. 80(3), 416–418 (2002). [CrossRef]
  5. L. Yin, Q. Lin, and G. P. Agrawal, “Dispersion tailoring and soliton propagation in silicon waveguides,” Opt. Lett. 31(9), 1295–1297 (2006). [CrossRef] [PubMed]
  6. E. Dulkeith, F. Xia, L. Schares, W. M. Green, and Y. A. Vlasov, “Group index and group velocity dispersion in silicon-on-insulator photonic wires,” Opt. Express 14(9), 3853–3863 (2006), http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-9-3853 . [CrossRef] [PubMed]
  7. A. C. Turner, C. Manolatou, B. S. Schmidt, M. Lipson, M. A. Foster, J. E. Sharping, and A. L. Gaeta, “Tailored anomalous group-velocity dispersion in silicon channel waveguides,” Opt. Express 14(10), 4357–4362 (2006), http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-10-4357 . [CrossRef] [PubMed]
  8. V. R. Almeida, Q. Xu, C. A. Barrios, and M. Lipson, “Guiding and confining light in void nanostructure,” Opt. Lett. 29(11), 1209–1211 (2004). [CrossRef] [PubMed]
  9. Q. Xu, V. R. Almeida, R. R. Panepucci, and M. Lipson, “Experimental demonstration of guiding and confining light in nanometer-size low-refractive-index material,” Opt. Lett. 29(14), 1626–1628 (2004). [CrossRef] [PubMed]
  10. P. Sanchis, J. Blasco, A. Martínez, and J. Martí, “Design of silicon-based slot waveguide configurations for optimum nonlinear performance,” J. Lightwave Technol. 25(5), 1298–1305 (2007). [CrossRef]
  11. Z. Zheng, M. Iqbal, and J. Liu, “Dispersion characteristics of SOI-based slot optical waveguides,” Opt. Commun. 281(20), 5151–5155 (2008). [CrossRef]
  12. R. Spano, J. V. Galán, P. Sanchis, A. Martínez, J. Martí, and L. Pavesi, “Group velocity dispersion in horizontal slot waveguides filled by Si nanocrystals,” International Conf. Group IV Photon., 314–316 (2008).
  13. L. Zhang, Y. Yue, Y. Y. Xiao-Li, R. G. Beausoleil, and A. E. Willner, “Highly dispersive slot waveguides,” Opt. Express 17(9), 7095–7101 (2009), http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-9-7095 . [CrossRef] [PubMed]
  14. P. A. Anderson, B. S. Schmidt, and M. Lipson, “High confinement in silicon slot waveguides with sharp bends,” Opt. Express 14(20), 9197–9202 (2006), http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-20-9197 . [CrossRef] [PubMed]
  15. C. Ma, Q. Zhang, and E. Van Keuren, “Analysis of symmetric and asymmetric nanoscale slab slot waveguides,” Opt. Commun. 282(2), 324–328 (2009). [CrossRef]
  16. K. Okamoto, “Beam propagation method,” in Fundamentals of Optical Waveguides (2000), Chap. 7, 273–281.
  17. B. Tatian, “Fitting refractive-index data with the Sellmeier dispersion formula,” Appl. Opt. 23(24), 4477–4485 (1984). [CrossRef] [PubMed]
  18. M. A. Foster, A. C. Turner, M. Lipson, and A. L. Gaeta, “Nonlinear optics in photonic nanowires,” Opt. Express 16(2), 1300–1320 (2008), http://www.opticsinfobase.org/abstract.cfm?URI=oe-16-2-1300 . [CrossRef] [PubMed]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2 Fig. 3
Fig. 4

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited