Physics
Scientific paper
Aug 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010njph...12h3024r&link_type=abstract
New Journal of Physics, Volume 12, Issue 8, pp. 083024 (2010).
Physics
4
Scientific paper
Complex band structures and multiple scattering theory have been used in this paper to analyze the overlapping of the evanescent waves localized in point defects in sonic crystals (SCs). The extended plane wave expansion (EPWE) with supercell approximation gives the imaginary part of the Bloch vectors that produces the decay of the localized modes inside the periodic system. Double cavities can present a coupling between the evanescent modes localized in the defect, showing a symmetric or antisymmetric mode. When point defects are close, the complex band structures reveal a splitting of the frequencies of the localized modes. Both the real part and the imaginary values of k of the localized modes in the cavities present different values for each localized mode, which gives different properties for each mode. The novel measurements, in very good agreement with analytical data, show experimental evidence of the symmetric and antisymmetric localized modes for a double-point defect in SCs. The investigation of the localization phenomena and the coupling between defects in periodic systems has fundamental importance in both pure and applied physics.
García-Raffi L. M.
Romero-Garcia V.
Sánchez-Pérez J. V.
No associations
LandOfFree
Propagating and evanescent properties of double-point defects in sonic crystals does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Propagating and evanescent properties of double-point defects in sonic crystals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Propagating and evanescent properties of double-point defects in sonic crystals will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1123083