TY - JOUR
T1 - Reduced sensitivity to disorder in a coupled-resonator waveguide with disordered coupling coefficients
AU - Li, Rujiang
AU - Hadad, Yakir
N1 - Publisher Copyright:
© 2021 American Physical Society.
PY - 2021/2
Y1 - 2021/2
N2 - Disorder and structural imperfections are unavoidable and challenge wave engineering. Therefore, methods to reduce disorder and its effects are persistently sought for. Here, we theoretically explore a kind of a bulk mode that is supported by a periodic coupled resonator waveguide with odd length. Although it is a bulk mode, its eigenfrequency is unaffected by disorder, and furthermore, its corresponding eigenvector is stationary under the influence of moderate disorder. Therefore, as we prove analytically and demonstrate numerically, the resonant transmission near its eigenfrequency exhibits substantially reduced sensitivity to disorder compared to any other frequency in the passband.
AB - Disorder and structural imperfections are unavoidable and challenge wave engineering. Therefore, methods to reduce disorder and its effects are persistently sought for. Here, we theoretically explore a kind of a bulk mode that is supported by a periodic coupled resonator waveguide with odd length. Although it is a bulk mode, its eigenfrequency is unaffected by disorder, and furthermore, its corresponding eigenvector is stationary under the influence of moderate disorder. Therefore, as we prove analytically and demonstrate numerically, the resonant transmission near its eigenfrequency exhibits substantially reduced sensitivity to disorder compared to any other frequency in the passband.
UR - http://www.scopus.com/inward/record.url?scp=85100654690&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.103.023503
DO - 10.1103/PhysRevA.103.023503
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AN - SCOPUS:85100654690
SN - 2469-9926
VL - 103
JO - Physical Review A
JF - Physical Review A
IS - 2
M1 - 023503
ER -