| 초록 |
The miniaturization of color filters has received a great deal of attention for their use in displays and high-speed chips. However, most miniaturized color pixels reported up to date have been based on metal array structures implementing surface plasmon polaritions (SPPs), which suffer from degraded performance when the number of array elements decreases. Herein, we propose a pixel design that does not rely on SPPs, but rather on the resonant reduction of scattering via a metal-semiconductor-metal hybrid nanostructure array. Such hybrid nanostructure can transmit specific wavelengths of visible light even with a single array element without compromising the spectral purity. As an array, by effectively manipulating the different spatial parameters, the optical filters enable multi-spectral imaging and snapshot hyperspectral imaging at 10 folds sizes below the Nyquist limit. These functions provide additional degrees of freedom for enhanced optical information storage system. |
