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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 3 — Feb. 1, 2006
  • pp: 389–391

Highly efficient optical coupling and transport phenomena in chains of dielectric microspheres

Zhigang Chen, Allen Taflove, and Vadim Backman  »View Author Affiliations


Optics Letters, Vol. 31, Issue 3, pp. 389-391 (2006)
http://dx.doi.org/10.1364/OL.31.000389


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Abstract

Using the generalized multiparticle Mie theory, we investigate optical coupling and transport through chains of dielectric microspheres. We identify two distinct coupling mechanisms of optical transport in terms of the coupling efficiency between neighboring microspheres, namely, evanescent coupling and nanojet coupling. We demonstrate that perfect whispering gallery mode propagation through a chain of evanescently coupled microspheres can be achieved. However, optical coupling and transport through a chain of nanojet-inducing microspheres is less efficient due to the radiative nature of photonic nanojets. Understanding these two optical coupling mechanisms is critical for selecting appropriate microspheres to build coupled resonator optical waveguides and other photon-manipulation devices for effective and low-loss guiding of photons.

© 2006 Optical Society of America

OCIS Codes
(230.3990) Optical devices : Micro-optical devices
(230.5750) Optical devices : Resonators
(230.7370) Optical devices : Waveguides
(290.4020) Scattering : Mie theory
(290.4210) Scattering : Multiple scattering

ToC Category:
Optical Devices

History
Original Manuscript: September 6, 2005
Revised Manuscript: October 9, 2005
Manuscript Accepted: October 11, 2005

Citation
Zhigang Chen, Allen Taflove, and Vadim Backman, "Highly efficient optical coupling and transport phenomena in chains of dielectric microspheres," Opt. Lett. 31, 389-391 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-3-389

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