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Gate controlled resonant widths in double-bend waveguides: bound states in the continuum

Описание

Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1088/0953-8984/27/29/295303

Ключевые слова: double-bent waveguide, effective non-Hermittian Hamiltonian, bound states in the continuum, Hamiltonians, Bend waveguide, Bent waveguides, Bound state, Gate potentials, Non-Hermitian Hamiltonians, Quantum transmission, Waveguides

Аннотация: We consider quantum transmission through double-bend Pi- and Z-shaped waveguides controlled by the finger gate potential. Using the effective non-Hermitian Hamiltonian approach we explain the resonances in transmission. We show a difference in transmission in the short waveguides that is the result of different chirality in Z and PПоказать полностьюi waveguides. We demonstrate that the potential selectively affects the resonant widths resulting in the occurrence of bound states in the continuum.

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Издание

Журнал: JOURNAL OF PHYSICS-CONDENSED MATTER

Выпуск журнала: Vol. 27, Is. 29

ISSN журнала: 09538984

Место издания: BRISTOL

Издатель: IOP PUBLISHING LTD

Персоны

  • Sadreev A.F. (Kirensky Institute of Physics Siberian Branch of Russian Academy of Sciences)
  • Maksimov D.N. (Kirensky Institute of Physics Siberian Branch of Russian Academy of Sciences)
  • Pilipchuk A.S. (Siberian Federal University)

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