Flat mirrors, also known as flat parabolic surfaces, for millimeter-wave and terahertz imaging systems are demonstrated.......

We present an improved compressive sensing algorithm with negative transformation and piecewise-nonlinear transformation......

Optical frequency combs, which are generated by the cascade of a phase modulator and a Mach–Zehnder intensity modulator......

A real-time reflection imaging employing a terahertz (THz) camera as the imager and a 3.9 THz quantum-cascade laser (QCL......

Contrast enhancement is particularly important for imaging of weakly absorbing materials. We demonstrate the inherent co......

A new data-acquisition method based on the less movement of the time-delay stage is designed. The method can clearly red......