Xi-Cheng Zhang

TL;DR: The development of techniques for inspection of explosives and other hazardous materials has become more and more attractive as concerns about public security have increased considerably in the past years 1 -3 as mentioned in this paper.

TL;DR: In this paper, the authors proposed a method for modifying terahertz radiation on a device having an anti-reflection layer having an outer surface comprising a plurality of pyramid structures having about a 30 μm to a 110 μm period.

TL;DR: In this article, three T-ray (terahertz wave) tomographic imaging modalities are presented: computed tomography, diffraction tomography and tomographic image with a Fresnel binary lens.

TL;DR: The investigation of terahertz-to-infrared thermal emission that relies on the excitation of surface plasmons in metal films deposited on a substrate with randomly ordered nanoscale pore arrays finds the intensity ratio between backward and forward radiation is exponentially dependent on the nominal thickness of the porous metal films.

TL;DR: In this article, the authors experimentally investigated the THz emission from two-color ring-Airy beam induced plasma in the ambient air and found that this exotic autofocusing beam tends to form an elongated weak filamentation with a main peak at the front and a tail with certain oscillations following, which leads to a higher THz yield and a slightly narrower THz spectrum than the emission from a Gaussian beam plasma under the same circumstances.