Single layer narrow bandwidth angle-insensitive guided-mode resonance bandstop filters

Abstract

Ultra-narrow linewidth, angle insensitive guide-mode resonance filter (GMRF) has been designed. The aimed performance on the behavior of the filter with respect to the angular divergence of the incident beam was considered. Results show that high reflection (more than 99.9%) can be obtained at the resonance wavelength, the full-width at half maximum (FWHM ) of TE-polarized light is only 1.1×10 -3 μm, and its sideband reflectance from 0.565 to 0.625 μm is less than 1%. In contrast to the ordinary GMRF, where the location of the resonances is incident angle dependent, it is demonstrated that the maximum peaks of the reflected spectrum gradually decreases with respect to the incident angle, but the reflectance peak position does not change.

Polarization Insensitivity Research of the Three-layer Silicon-based Symmetric Cascade Optical Sensor

“…GMR is more likely to occur in subwavelength grating structures [6][7][8], where the grating period is significantly smaller than the incident light wavelength. Such structures exhibit high diffraction efficiency and narrow bandwidth properties, making them suitable for designing narrow-band filters [9][10][11][12][13], optical modulators [14][15][16][17][18], and sensors [19][20][21][22].…”

Guided-mode Resonance Filter with Ultra-narrow Bandwidth over the Visible Frequencies for Label-free Optical Biosensor

“…GMR lters might have many useful characteristics which include narrow band, high peak eciency, exible structures [2], [711], etc. Therefore, they have been widely studied for lter applications with practical demands such as narrow band, total reection, and the others [12,13].…”

Realisation of one‐dimensional (Si/SiO 2 ) N PC filter in visible light band

“…Tunable PC filters can be achieved by applying an external voltage to the defect mode [16]. PC filters can also be applied to the directional waveguide coupler in photonic integrated circuits [17], PC Bragg reflector [18] and the PC band stop filter [19]. Owing to the difficulties in preparation, some of the above applications were just limited to theory simulations.…”