Theoretical physicist Farok Miwivar studied the interaction between two sets of luminescent atoms in a quantum cavity

Researchers at the Technion-Israel Institute of Technology have developed a coherently controlled spin optical laser based on a single atomic layer.This discovery was made possible by coherent spin-dependent interactions between a single atomic layer and a laterally constrained photonic spin lattice, which supports a high-Q spin valley through Rashaba-type spin splitting of photons of bound states...

Semiconductor quantum dots have the advantages of high quantum yield, narrow emission spectrum, and compatibility with solution processes. They have shown broad application prospects and enormous economic value in the field of optoelectronic materials and devices, and related research has won the Nobel Prize in Chemistry in 2023.Compared with traditional II-VI and III-V quantum dots (such as CdSe,...

In the interaction between ultra short and ultra strong lasers and matter, short pulse width and high energy electrons are generated, commonly referred to as "hot electrons". The generation and transport of hot electrons is one of the important fundamental issues in high-energy density physics of lasers. Superhot electrons can excite ultrafast electromagnetic radiation in a wide range of wavelengt...

Scientists at St. Andrews University have made significant breakthroughs in compact laser research after decades of hard work.Laser is widely used in fields such as communication, medicine, measurement, manufacturing, and measurement around the world. They are used to transmit information on the internet, for medical purposes, and even in facial scanners on mobile phones. Most of these lasers are...

AbstractDue to the width of the laser melt pool and the sintering effect on the surrounding powder, the experimental size of the selective laser melting (SLM) sample will be larger than the design size, which will greatly affect the dimensional accuracy and surface quality of the thin-walled sample. In order to obtain SLM thin-walled TC11 specimens with precise dimensions, an orthogonal experiment...