Terahertz (THz) science and technology have greatly progressed over the past two decades
to a point where the THz region of the electromagnetic spectrum is now a mature research …

Many exciting terahertz imaging applications, such as non-destructive evaluation,
biomedical diagnosis, and security screening, have been historically limited in practical …

Terahertz and millimeter waves penetrate various dielectric materials, including plastics,
ceramics, crystals, and concrete, allowing terahertz transmission and reflection images to be …

As the volume of composite parts continues to rise, quality and performance specifications
are becoming more and more demanding. In this context, robust and reliable nondestructive …

Vortex beams, carrying orbital angular momentum (OAM), have plenty of applications
ranging from particle manipulation to high‐capacity data transmissions. In particular, the …

Various ultrathin planar optical elements, including cylindrical lens, spherical lens, and
phase holograms, are designed based on the interface phase modulation of antenna …

Terahertz (THz) science will profoundly impact biotechnology. It has tremendous potential
for applications in imaging, medical diagnosis, health monitoring, environmental control and …

By introduction of an optical gating beam on a semiconductor wafer, near-field terahertz
(THz) imaging with a dynamic aperture has been realized. The spatial resolution is …

The National Institute of Information and Communications Technology (NICT, Japan) started
the Terahertz Project in April 2006. Its fundamental purpose in the next five years is to …

We report on a method to obtain a subwavelength resolution in terahertz time-domain
imaging. In our method, a sharp copper tip is used to locally distort and concentrate the THz …