A Highly-Efficient and Compact Surface Plasmon Polaritons-based Long-Wavelength Cut-off Filter at Telecom Wavelengths

Abstract

This paper describes numerical results of an ultra-compact and efficient plasmonic cutoff filter based on a MIM waveguide. Simulation results confirm that by adjusting structural parameters, the desired spectral response can be easily obtained.

An Ultracompact and Efficient Long-Wavelength Plasmonic Cut-Off Filter based on Asymmetric E-Shaped Resonator

“…The sizes of the different segments of the E-shaped resonator are as follows; l=k= 90 nm, as the length and width of the resonator, respectively, d=t= 10 nm, define the distance between the upper and middle tooth and the depth of the tooth, a= 20 nm, shows the length of the tooth, and b= 60 nm, as the width of the middle arm. The cut-off wavelength, defined as where the transmission reaches 1% [10], is revealed to be 928.6 nm. It worth to mention that the ultra-wide cut-off occurs from the near-infrared (NIR) to the wavelength of 2 μm.…”

“…Numerical results confirm that tunability of the transmission profile can be realized through controlling the length of the resonator. Compared to recent studies [9][10][11][12], the new device offers smaller footprint and/or higher efficiency, which makes it an attractive candidate in high-density on-chip integration.…”

An Extremely Miniaturized and Highly-Efficient High-Pass Wavelength Plasmonic Filter at Near-Infrared

“…In summary, we have proposed an extremely compact and efficient high-pass wavelength filter at near-infrared (NIR) range. The plasmonic filter is significantly smaller and more efficient than recent research works [8,9], and may find applications in high density photonic integrated circuits and facilitate the development of miniaturized and compact optical circuits for on-chip applications.…”