Recently, terahertz spectroscopy has received a lot of attention because of its unique
properties such as biosafety, fingerprint spectrum, and good penetration. In this review, we …

One dimensional sub-wavelength gratings, also known as metagratings have attracted
enormous attention due to the relatively simpler design configurations with versatile …

The birth of terahertz imaging approximately coincides with the birth of the journal Optics
Express. The 20^ th anniversary of the journal is therefore an opportune moment to consider …

Terahertz (THz) imaging can see through otherwise opaque materials. However, because of
the long wavelengths of THz radiation (λ= 400 μm at 0.75 THz), far-field THz imaging …

Tumors, irregularities, and malignancies of the brain are deemed lethal. If brain cancer
detection techniques are executed appropriately, precious lives might be saved. They …

We demonstrate a form of near-field terahertz (THz) imaging that is compatible with
compressed sensing algorithms. By spatially photomodulating THz pulses using a set of …

Terahertz (THz) imaging is increasingly used in the cultural heritage field. In particular,
continuous wave (CW) and low frequency THz is attracting more attention. The first …

A review on Terahertz end-to-end systems with an emphasis on integrated approaches is
presented. Four major catalogs of THz integrated systems, including THz communication …

Hyperspectral imaging is a spectroscopic imaging technique that allows for the creation of
images with pixels containing information from multiple spectral bands. At terahertz …

The past two decades have witnessed an ever-growing number of emerging applications
that utilize terahertz (THz) waves, ranging from advanced biomedical imaging, through novel …