نتایج جستجو برای: symmetric and asymmetric modes

تعداد نتایج: 16868619  

Journal: :Journal of Number Theory 1996

Journal: :Glasgow Mathematical Journal 1974

Journal: :Journal of Mathematical Analysis and Applications 1998

Journal: :ACM Computing Surveys 1979

Journal: :Optics express 2009
X M Bendaña F J García de Abajo

We find the conditions for the existence of trapped modes in planar periodic particle arrays. Confined excitations of TE and TM symmetry are observed in symmetric environments, originating in lattice resonances that are signalled by the onset of new diffraction beams. This mechanism of mode formation is shown to be inhibited by the presence of a dielectric interface in an asymmetric configurati...

Journal: :Journal of High Energy Physics 2017

Journal: :Journal of Mathematical Economics 2011

Journal: :basic and clinical cancer research 0
narges jooladi tehran university of medical sciences, tehran, iran seyed rabee mahdavi iran university of medical sciences, tehran, iran hasanali nedaei shahid beheshti university of medical sciences, tehran, iran hasan nosrati shahid beheshti university of medical sciences, tehran, iran mansour naderi tehran university of medical sciences, tehran, iran mahbod esfehani tehran university of medical sciences, tehran, iran

background : this study was set to determine the optimal technique of breast cancer with supraclavicular fossa irradiation. methods : three techniques was compared in this study. techniques were two point symmetric (2p-sym), two point asymmetric (2p-asym) and single point (sp). in 2p-sym all of beams were symmetric, in 2p-asym tangential beams were symmetric and supra was asymmetric, in sp all ...

Journal: :Physical review 2021

Loss compensation via inserting gain is of fundamental importance in different branches photonics, nanoplasmonics, and metamaterial science. This effect has found an impressive implementation the parity-time symmetric (PT-symmetric) structures possessing balanced distribution loss gain. In this work, we generalize phenomenon to asymmetric systems demonstrating coupled multi-mode loss-gain diele...

2000
S. A. Malinovskaya L. S. Cederbaum

The resonant photon emission following the excitation of a highly symmetric system to core-excited electronic states is discussed within a time-dependent formulation. Two types of vibrational modes—localizing modes and symmetry breaking but nonlocalizing modes—are considered, named according to their impact on dynamical symmetry breaking and localization accompanying the process. The decay rate...

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