Donor and acceptor modes in photonic band structure

E. Yablonovitch, T. J. Gmitter, R. D. Meade, A. M. Rappe, K. D. Brommer, and J. D. Joannopoulos
Phys. Rev. Lett. 67, 3380 – Published 9 December 1991
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Abstract

Three-dimensionally periodic dielectric structures, photonic crystals, possessing a forbidden gap for electromagnetic wave propagation, a photonic band gap, are now known. If the perfect 3D periodicity is broken by a local defect, local electromagnetic modes can occur within the forbidden band gap. Addition of extra dielectric material locally, inside the photonic crystal, produces ‘‘donor’’ modes. Conversely, local removal of dielectric material from the crystal produces ‘‘acceptor’’ modes. It is now possible to make high-Q electromagnetic cavities of ∼1 cubic wavelength, for short wavelengths at which metallic cavities are useless. These new dielectric cavities can cover the range from mm waves to UV wavelengths.

  • Received 11 March 1991

DOI:https://doi.org/10.1103/PhysRevLett.67.3380

©1991 American Physical Society

Authors & Affiliations

E. Yablonovitch and T. J. Gmitter

  • Navesink Research Center, Bell Communications Research, Red Bank, New Jersey 07701-7040

R. D. Meade, A. M. Rappe, K. D. Brommer, and J. D. Joannopoulos

  • Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

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Vol. 67, Iss. 24 — 9 December 1991

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