To address the challenge of porosity suppression in laser-arc hybrid welding of high-nitrogen steel, a weakly coupled laser-arc welding method suitable for high-nitrogen steel is proposed. A test ...

In an experiment packed with scientific firsts, researchers have demonstrated that a laser pulse can accelerate an electron beam and couple it to a second laser plasma accelerator, where another laser ...

Highly efficient photovoltaic (PV) cells and batteries are increasingly important as energy demands increase and nanocrystal (NC) films have the potential to alleviate such demands. When nanocrystals ...

A team of researchers has developed a novel method for using cholesteric liquid crystals in optical microcavities. The platform created by the researchers enables the formation and dynamic tuning of ...

A technical paper titled “Unlocking the monolithic integration scenario: optical coupling between GaSb diode lasers epitaxially grown on patterned Si substrates and passive SiN waveguides” was ...

Launching high power laser light into a pure silica core optical fiber can sometimes damage the input face of the fiber, causing failure in fiber coupling. The coupling failure occurs more commonly ...

Electron and phonon are two fundamental particles (quasi-particles) of condensed matter and their interplay in single crystals can create many interesting physical phenomena, such as polariton, charge ...