An ultra-wideband terahertz absorber is presented with dielectric hemi-ellipsoid on a monolayer graphene layer. The absorber…
An Ultra-sensitive THz metamaterial sensor with asymmetric duble-F-shaped metal resonators (ADFSMR) is proposed. Perfect narrow-band absorption…
A concept of non-uniform optical frequency comb (OFC) is proposed. The discrete spectral lines are generated…
We report on tip-gap interaction which causes a non-resonant field enhancement in THz s-SNOM. We find…
The effect of the electron beam misalignment on the operating frequency, the frequency-tunable range and the…
We study the excitation of the acoustic plasmons in graphene-based structure by free electrons. The acoustic…