News tagged with optical frequencies

An octave spanning chip-based optical ruler

More than a decade ago, the frequency comb technique was developed at the Max Planck In-stitute of Quantum Optics by Professor Theodor W. Hänsch. The new tool has stimulated fun-damental research as well ...

Aug 08, 2011
4.8 / 5 (4) 1

Tiny rulers to measure nanoscale structures

With the advent of nanometer-sized machines, there is considerable demand for stable, precise tools to measure absolute distances and distance changes. One way to do this is with a plasmon ruler. In physics ...

Aug 31, 2010
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Quantum leap for phonon lasers

Physicists have taken major step forward in the development of practical phonon lasers, which emit sound in much the same way that optical lasers emit light. The development should lead to new, high-resolution ...

Feb 22, 2010
4.6 / 5 (30) 13