In 1933 Peter Kapitza and Paul Dirac predicted that a standing light wave would act as a ‘light grating’ that could diffract electrons. But light interacts only weakly with electrons, and early ...

The watch exists to measure the length of time, and it is not thought that there are other uses for it. But,strontiumUltrahigh accuracy using atoms"Light grating" atomic clockIt seems that you can ...

The spectrum of laser technologies available to hackers has gradually widened from basic gas lasers through CO2 tubes, diode lasers, and now fiber lasers. One of the newer entries is the MOPA laser, ...

The bizarre nature of reality as laid out by quantum theory has survived another test, with scientists performing a famous experiment and proving that reality does not exist until it is measured.

The observation was made possible by powerful modern lasers and highlights the wave and particle nature of matter. Herman Batelaan and colleagues at the University of Nebraska hope to exploit the ...