Practical uses for the new source of light, which scientists christened laser (for light amplification by stimulated emission of radiation), proved to be both scarce and elusive.

Albert Einstein's stimulated emission theory has been validated by large amounts of light, but never before by individual photons—until now. Scientists Finally Manipulate Quantum Light ...

The word itself, originally an acronym, reflects this function: “light amplification by stimulated emission of radiation.” Send in a photon of the right frequency, and the laser makes copies ...

Hence, only a few particles need to be excited before stimulated emission can take place. Maiman’s only moment of real doubt came when a scientist he had personally trained, Irwin Wieder, published a ...

The first source of electromagnetic radiation operating at ammonia molecule junctions emitted a 1.25-centimeter light wave. The device was called a maser, an acronym for "microwave amplification by ...

Let’s start with the basics. The word laser stands for Light Amplification by Stimulated Emission of Radiation. A laser is made of light all with roughly the same frequency (or, in other words ...

The term 'laser' stands for light amplification by stimulated emission of radiation. It is a sophisticated tool that emits a narrow, focused beam of light energy, which, when directed toward the ...

New results published in the journal Physical Review Letters detail how a specially designed metamaterial was able to tip the ...

Scientists at Northumbria University have made a breakthrough in developing a new type of ‘microwave amplification by stimulated emission of ...