Charles Townes played a crucial role in the invention and realization of the first masers and lasers, for which he shared the 1964 Nobel Prize in Physics. Nature Materials speaks to him about his ...
The basic element of the early masers was gaseous ammonia; the latest models make use of crystals It is a quantum-mechanical device which amplifies very short radio waves with extraordinary fidelity.
1933), a German-born radio astronomer, joined Bell Labs in 1958. He had done his PhD on using masers (microwave amplification by stimulated emission of radiation) to amplify and measure radio ...
Since the appearance of the first edition almost exactly three years ago, the first optical masers (lasers) have been developed. By means of these devices very intense and highly coherent light beams ...
Time standards and frequency standards can include cesium or rubidium atomic clocks, quartz oscillators, hydrogen masers and other master clocks. Time reference sources are used in networks & ...
In the late 90s and early 2000s, his pioneering studies utilizing high spatial resolution observations from the first generation large-format mid-infrared detectors led to a fundamental understanding ...
Lasers, LEDs and light sources are devices that create light. LEDs (light emitting diodes) convert an electrical current into light using spontaneous emission in optically active semiconductors ...
1933), a German-born radio astronomer, joined Bell Labs in 1958. He had done his PhD on using masers (microwave amplification by stimulated emission of radiation) to amplify and measure radio ...
In some 20% of cases, extremely luminous maser emission in radio frequency lines of the hydroxyl (OH) molecule is also observed. As they are often found in gas-rich mergers, it has been suggested that ...
REGAL Legends and Fisherman Masters emerged the respective winners of the Legends Over-50 and Masers Over-40 feature four-team, one-day softball feature ...