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Fano-like spectral profile in TE wave scattering by nanowire of dissipative and dispersive materials
Azwar A.a,b, Soehianie A.a, Iskandar A.A.a, Tjia M.-O.a
a Physics of Magnetism and Photonics Research Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, 40132, Indonesia
b Department of Physics, Faculty of Mathematics and Natural Sciences, Tanjungpura University, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2016 World Scientific Publishing Company.We report the result of extending the study of Fano phenomena in the scattering of TE electromagnetic wave by nanowire having complex and dispersive permittivities, ϵ1(ω) = ϵ”1′(ω) + iϵ1(ω), on the basis of exact Mie formulation. It is shown that the spectral profiles of scattering coefficients are sensitively affected by imaginary part of the permittivity and its overall frequency dependent properties. The cascaded resonance profile reported previously for real and positive permittivity is suppressed by a large ϵ”1 while the spectral profile is broadened by the dispersive nature of ϵ1(ω) as to increase the asymmetry of the profile. The negative sign of the real part of the permittivity, except for ϵ1′ =-1, is generally found to eliminate the resonace profile. Further, the size (radius) of the nanowire is also shown to affect the resonance profile. Specific scattering coefficients calculated for silicon (Si) and silver (Ag) nanowire using experimental data of corresponding ϵ1(ω) are demonstrated to exhibit the spectral profile for certain wire sizes with nicely fitted Fano profile.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Dispersive materials,Fano profile,Fano resonances,Frequency dependent,Imaginary parts,Line shape,Scattering co-efficient,Spectral profile[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]asymmetric lineshape,Fano resonance,light scattering,nanowire,surface plasmon[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1142/S0218863516500053[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]