TY - GEN
T1 - Guided-wave resonance transmission in one-dimensional metallic gratings with surface impedances on its walls of slits
AU - Hwang, Ruey-Bing
PY - 2010/11/19
Y1 - 2010/11/19
N2 - The resonances coupling between the incident light and surface plasmons as well as guided-wave resonance were pointed out to be the two major physical processes causing the extraordinary transmission of one-dimensionally lamellar gratings with sub-wavelength slits. To pinpoint the dominant one between the two major physical processes, we consider here the scattering of TE-polarized plane wave (with its electric field along the groove direction) by a 1D grating made of perfect metal, but with surface impedance on the side walls of the sub-wavelength slits. It is shown that a frequency-selective transmission can take place even at long wavelengths, and such a phenomenon can be related to the dispersion characteristic of the slit channel with surface-impedance walls where a surface-wave mode exists without cutoff frequency. By examining the phase angle of the surface-wave mode propagating in the slit channel, the frequency-selective transmission is verified to be mainly attributed to the Fabry-Perot resonance of the surface-wave mode.
AB - The resonances coupling between the incident light and surface plasmons as well as guided-wave resonance were pointed out to be the two major physical processes causing the extraordinary transmission of one-dimensionally lamellar gratings with sub-wavelength slits. To pinpoint the dominant one between the two major physical processes, we consider here the scattering of TE-polarized plane wave (with its electric field along the groove direction) by a 1D grating made of perfect metal, but with surface impedance on the side walls of the sub-wavelength slits. It is shown that a frequency-selective transmission can take place even at long wavelengths, and such a phenomenon can be related to the dispersion characteristic of the slit channel with surface-impedance walls where a surface-wave mode exists without cutoff frequency. By examining the phase angle of the surface-wave mode propagating in the slit channel, the frequency-selective transmission is verified to be mainly attributed to the Fabry-Perot resonance of the surface-wave mode.
UR - http://www.scopus.com/inward/record.url?scp=78249246822&partnerID=8YFLogxK
U2 - 10.1109/ICCCAS.2010.5581892
DO - 10.1109/ICCCAS.2010.5581892
M3 - Conference contribution
AN - SCOPUS:78249246822
SN - 9781424482238
T3 - 2010 International Conference on Communications, Circuits and Systems, ICCCAS 2010 - Proceedings
SP - 642
EP - 646
BT - 2010 International Conference on Communications, Circuits and Systems, ICCCAS 2010 - Proceedings
T2 - 2010 International Conference on Communications, Circuits and Systems, ICCCAS 2010
Y2 - 28 July 2010 through 30 July 2010
ER -