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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 20 — Oct. 2, 2006
  • pp: 9460–9466

The effects of inter-cavity separation on optical coupling in dielectric bispheres

Shashanka P. Ashili, Vasily N. Astratov, and E. Charles H. Sykes  »View Author Affiliations


Optics Express, Vol. 14, Issue 20, pp. 9460-9466 (2006)
http://dx.doi.org/10.1364/OE.14.009460


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Abstract

The optical coupling between two size-mismatched spheres was studied by using one sphere as a local source of light with whispering gallery modes (WGMs) and detecting the intensity of the light scattered by a second sphere playing the part of a receiver of electromagnetic energy. We developed techniques to control inter-cavity gap sizes between microspheres with ~30nm accuracy. We demonstrate high efficiencies (up to 0.2–0.3) of coupling between two separated cavities with strongly detuned eigenstates. At small separations (<1 µm) between the spheres, the mechanism of coupling is interpreted in terms of the Fano resonance between discrete level (true WGMs excited in a source sphere) and a continuum of “quasi”-WGMs with distorted shape which can be induced in the receiving sphere. At larger separations the spectra detected from the receiving sphere originate from scattering of the radiative modes.

© 2006 Optical Society of America

OCIS Codes
(230.5750) Optical devices : Resonators
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Optical Devices

History
Original Manuscript: June 12, 2006
Revised Manuscript: August 16, 2006
Manuscript Accepted: September 13, 2006
Published: October 2, 2006

Citation
Shashanka P. Ashili, Vasily N. Astratov, and E. Charles H. Sykes, "The effects of inter-cavity separation on optical coupling in dielectric bispheres," Opt. Express 14, 9460-9466 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-20-9460


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References

  1. B. E. Little, S. T. Chu, P. P. Absil, J. V. Hryniewicz, F. G. Johnson, F. Seiferth, D. Gill, V. Van, O. King, and M. Trakalo, "Very high-order microring resonator filters for WDM applications," IEEE Photon. Technol. Lett. 16, 2263-2265 (2004). [CrossRef]
  2. A. Yariv, Y. Xu, R. K. Lee, and A. Scherer, "Coupled-resonator optical waveguide: a proposal and analysis," Opt. Lett. 24, 711-713 (1999). [CrossRef]
  3. S. Deng, W. Cai, and V. N. Astratov, "Numerical study of light propagation via whispering gallery modes in microcylinder coupled resonator optical waveguides," Opt. Express 12, 6468-6480 (2004). [CrossRef] [PubMed]
  4. J. K. S. Poon, L. Zhu, G. A. DeRose, and A. Yariv, "Transmission and group delay of microring coupled-resonator optical waveguides," Opt. Lett. 31, 456-458 (2006). [CrossRef] [PubMed]
  5. J. E. Heebner, R. W. Boyd, and Q. H. Park, "SCISSOR solitons and other novel propagation effects in microresonator-midified waveguides," J. Opt. Soc. Am. B 19, 722-731 (2002). [CrossRef]
  6. M. Sumetsky and B. J. Eggleton, "Modeling and optimization of complex photonic resonant cavity circuits," Opt. Express 11, 381-391 (2003). [CrossRef] [PubMed]
  7. D. D. Smith, H. Chang, and K. A. Fuller, "Whispering-gallery mode splitting in coupled microresonators," J. Opt. Soc. Am. B 20, 1967-1974 (2003). [CrossRef]
  8. J. E. Heebner, P. Chak, S. Pereira, J. E. Sipe, and R. W. Boyd, "Distributed and localized feedback in microresonator sequences for linear and nonlinear optics," J. Opt. Soc. Am. B 21, 1818-1832 (2004). [CrossRef]
  9. A. B. Matsko, A. A. Savchenkov, D. Strekalov, V. S. Ilchenko, and L. Maleki, "Interference effects in lossy resonator chains," J. Mod. Opt. 51, 2515-2522 (2004). [CrossRef]
  10. J. B. Khurgin, "Expanding the bandwidth of slow-light photonic devices based on coupled resonators," Opt. Lett. 30, 513-515 (2005). [CrossRef] [PubMed]
  11. S. V. Boriskina, T. M. Benson, P. Sewell, and A. I. Nosich, "Optical modes in 2-D Imperfect Square and Triangular Microcavities," IEEE J. Quantum Electron. 41, 857-862 (2005). [CrossRef]
  12. R. G. DeVoe and R. G. Brewer, "Observation of superradiant and subradiant spontaneous emission of two trapped ions," Phys. Rev. Lett. 76, 2049-2052 (1996). [CrossRef] [PubMed]
  13. S. Mahnkopf, M. Kamp, A. Forchel, and R. März, "Tunable distributed feedback laser with photonic crystal mirrors," Appl. Phys. Lett. 82, 2942-2944 (2003). [CrossRef]
  14. Y. Liu, Z. Wang, M. Han, S. Fan and R. Dutton, "Mode-locking of monolithic laser diodes incorporating coupled-resonator optical waveguides," Opt. Express 13, 4539-4553 (2005). [CrossRef] [PubMed]
  15. T. Mukaiyama, K. Takeda, H. Miyazaki, Y. Jimba, and M. Kuwata-Gonokami, "Tight-binding photonic molecule modes of resonant bispheres," Phys. Rev. Lett. 82, 4623-4626 (1999). [CrossRef]
  16. B. M. Möller, U. Woggon, M. V. Artemyev, and R. Wannemacher, "Photonic molecules doped with semiconductor nanocrystals," Phys. Rev. B 70, 115323 (2004). [CrossRef]
  17. Y. P. Rakovich, J. F. Donegan, M. Gerlach, A. L. Bradley, T. M. Connolly, J. J. Boland, N. Gaponik, and A. Rogach, "Fine structure of coupled optical modes in photonic molecules," Phys. Rev. A 70, 051801 (2004). [CrossRef]
  18. Y. Hara, T. Mukaiyama, K. Takeda, and M. Kuwata-Gonokami, "Heavy photon states in photonic chains of resonantly coupled cavities with supermonodispersive microspheres," Phys. Rev. Lett. 94, 203905 (2005). [CrossRef] [PubMed]
  19. B. M. Möller, U. Woggon, and M. V. Artemyev, "Coupled-resonator optical waveguides doped with nanocrystals," Opt. Lett. 30, 2116-2118 (2005). [CrossRef] [PubMed]
  20. V. N. Astratov, J. P. Franchak, and S. P. Ashili, "Optical coupling and transport phenomena in chains of spherical dielectric microresonators with size disorder," Appl. Phys. Lett. 85, 5508-5510 (2004). [CrossRef]
  21. A. V. Kanaev, V. N. Astratov, and W. Cai, "Optical coupling at a distance between detuned spherical cavities," Appl. Phys. Lett. 88, 111111 (2006). [CrossRef]
  22. Z. Chen, A. Taflove, and V. Backman, "Photonic nanojet enhancement of backscattering of light by nanoparticles: a potential novel visible-light ultramicroscopy technique," Opt. Express 12,1214-1220 (2004). [CrossRef] [PubMed]
  23. Z. Chen, A. Taflove, and V. Backman, "Highly efficient optical coupling and transport phenomena in chains of dielectric microspheres," Opt. Lett. 31, 389-391 (2006). [CrossRef] [PubMed]

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