Peculiarities of mode spectrum in two-dimensional Bragg structures

Ginzburg, N.S. and Peskov, N.Y. and Sergeev, A.S. and Phelps, A.D.R. and Cross, A.W. (2005) Peculiarities of mode spectrum in two-dimensional Bragg structures. Optics Communications, 250 (4-6). pp. 309-315. ISSN 0030-4018 (https://doi.org/10.1016/j.optcom.2005.02.059)

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Abstract

The fundamental difference in the eigenmode spectrum for traditional one-dimensional (1D) periodical Bragg structures and novel two-dimensional (2D) periodical Bragg structures of planar and coaxial geometry is discussed. In the case of 1D Bragg structures, the eigenmode frequencies are located outside the Bragg reflection zone while for 2D Bragg structures the highest Q-factor modes are located just near to the frequency of Bragg resonance and the mechanism for the formation of these modes is related to the coupling of the longitudinal and transverse propagating wave fluxes. The main eigenmode possesses a Q-factor which substantially exceeds the Q-factor of the other modes even in the case when the system transverse size is much greater than the wavelength that encourage the use of 2D Bragg structures for mode selection in powerful oscillators with oversized microwave systems.

ORCID iDs

Ginzburg, N.S., Peskov, N.Y., Sergeev, A.S., Phelps, A.D.R. ORCID logoORCID: https://orcid.org/0000-0002-1100-1012 and Cross, A.W. ORCID logoORCID: https://orcid.org/0000-0001-7672-1283;
  • Item type:Article
    ID code:31260
    Dates:
    Date
    Event
    15 June 2005
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:13 Jul 2011 08:56
    Last modified:11 Nov 2024 09:45
    URI:https://strathprints.strath.ac.uk/id/eprint/31260
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