When light hits the surface of some materials, namely those exhibiting a property known as photoresistance, it can induce changes in their electrical conductivity. Graphene is among these materials, ...

Owing to its broadband nature, unique spectral fingerprint, safety, and penetration capabilities, terahertz (THz) waveband (0.1 to 10 THz) holds promise for diverse applications, including biomedical ...

The propagation of charged particles in a medium at a speed exceeding the phase speed of light in this medium (this speed also called superluminal) leads to the generation of radiation. The diagram of ...

In a world increasingly driven by high-speed communication and low-power electronics, a team of researchers from the National University of Singapore (NUS) and Singapore University of Technology and ...

Amplified spontaneous emission is a physical phenomenon that entails the amplification of the light spontaneously emitted by ...

Scientists have successfully developed a pocket-sized particle accelerator capable of projecting ultra-short electron beams with laser light at more than 99.99% of the speed of light. To achieve this ...

A simple tweak to the usual setup is all that is needed to enhance a spectroscopy technique that uses terahertz wavelengths to probe samples, physicists at RIKEN University, Wakō, Japan, have ...

Scientists address decades-long problem in the field of single-molecule fluorescence resonance energy transfer, paving the way for more accurate experiments. Scientists at St. Jude Children's Research ...