Organic π‐conjugated crystals with second‐order optical nonlinearity are considerably
attractive materials for diverse terahertz (THz) wave photonics. An overview of the research …

Ultrashort terahertz pulses derived from femtosecond table-top sources have become a
valuable tool for time-resolved spectroscopy during the last two decades. Until recently, the …

In this paper, we will review both past and recent progresses in the generation, detection
and application of intense terahertz (THz) radiation. We will restrict the review to laser based …

Polarization conveys valuable information for electromagnetic signal processing exhibiting
tremendous potential in developing application driven photonic devices. Manipulation of …

Electrons ionized from an atom or molecule by circularly or elliptically polarized
femtosecond ω and 2 ω pulses exhibit different trajectory orientations as the relative phase …

Terahertz wave sensing and imaging have received a great deal of attention because of
their significant scientific and technological potential in multidisciplinary fields 1, 2, 3 …

We demonstrate plasma-THz generation in ambient air with two-color (ω-2ω) optical
excitation using input pulses with a bandwidth supporting sub-20-fs duration, yielding a …

Ultrabroadband, intense terahertz (THz) waves can be generated and detected using
gaseous media as both the THz wave emitter and sensor, with a bandwidth covering the …

Matters are generally classified within four states: solid, liquid, gas, and plasma. Three of the
four states of matter (solid, gas, and plasma) have been used for THz wave generation with …

We investigate for the first time, both experimentally and theoretically, low-frequency
terahertz (THz) emission from the ambient air ionized by a two-color femtosecond laser …