title: Silicon photonic crystal filter with ultrawide passband characteristics.
abstract: We report on what is believed to be the first example of an ultrawide, bandpass filter, based on a high-contrast multicomponent one-dimensional Si photonic crystal (PC). The effect of the disappearance of a limited number of flat stopbands and their replacement with extended passbands is demonstrated over a wide IR range. The passbands obtained exhibit a high transmission of 92% to 96% and a substantial bandwidth of 1800 nm, which is spectrally flat within the passband. The multicomponent PC model suggested can be applied to the design of any micro- or nanostructured semiconductor or dielectric material for application across a wide spectral range.
authors: Department of Electronic and Electrical Engineering, Trinity College Dublin, Dublin 2, Ireland.
authors: Anna
authors: A
authors: Baldycheva
authors: Vladimir A
authors: VA
authors: Tolmachev
authors: Tatiana S
authors: TS
authors: Perova
authors: Yulia A
authors: YA
authors: Zharova
authors: Ekaterina V
authors: EV
authors: Astrova
authors: Kevin
authors: K
authors: Berwick