Abstract: A novel semiconductor laser which can achieve mode-hop-free tuning is proposed. The device consists of an etched diffraction grating (EDG) as a dispersive element to provide the mode ...

It may sound like an oxymoron, but this massive nanoparticle made up of 7,000 sodium atoms is the largest to exhibit such ...

Physics is the search for and application of rules that can help us understand and predict the world around us. Central to physics are ideas such as energy, mass, particles and waves. Physics attempts ...

The Maharashtra HSC Board successfully conducted the Class 12 Physics examination for the 2025-2026 academic session on the scheduled date February 16, 2026. Lakhs of students appeared for the paper, ...

Quantum physics is the study of matter and energy at its most fundamental level. A central tenet of quantum physics is that energy comes in indivisible packets called quanta. Quanta behave very ...

Attosecond pulses enable sub-femtosecond studies of ultrafast electron dynamics. Since 2001, pulse durations have shortened ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this story: Many philosophers and scientists ...

Introduction:Attosecond pulses capture ultrafast electron and light–matter dynamics on the shortest timescales accessible to controlled experiments ...