Chemical and physical systems undergoing change display spectral signatures from the
radio frequency to the X-ray region of the electromagnetic spectrum. This has led to the …

During the past two decades, terahertz (THz) science and technology have rapidly
expanded in all fundamental and applied aspects of physical, chemical, and biological …

Recently, the technology of terahertz (THz) waves, which have been called undeveloped
electromagnetic waves, has been making remarkable progress. In addition to the …

Terahertz (THz) radiation has been observed from multiferroic BiFeO 3 thin films via ultrafast
modulation of spontaneous polarization upon carrier excitation with illumination of …

The THz-radiation power from bulk InAs irradiated with femtosecond optical pulses is
significantly enhanced and reaches 650 μW in a 1.7-T magnetic field with 1.5-W excitation …

Coherent tunable terahertz waves were generated successfully using a terahertz-wave
parametric oscillator (TPO) based on laser light scattering from the A/sub 1/-symmetry …

We report on the observation of terahertz (THz) radiation emitted from antiferromagnetic
(AFM) single-crystal nickel oxide irradiated with femtosecond laser pulses. Periodic …

We report our femtosecond time-resolved measurements on the photoresponse of an
epitaxial YBa 2 Cu 3 O 7− x (YBCO) thin-film photodetector, patterned into a microbridge …

We derive simple formulas to explain terahertz (THz) emission from semiconductor surfaces
excited by a femtosecond (fs) laser. Femtosecond optical pulses with energies larger than …

We present experimental results on continuous-wave generation of THz radiation by
strained Ge and a theoretical model for population inversion of carriers giving rise to the …