News tagged with optical frequencies

Atomic clock comparison via data highways

(Phys.org) -- Optical atomic clocks measure time with unprecedented accuracy. However, it is the ability to compare clocks with one another that makes them applicable for high-precision tests in fundamental ...

Apr 27, 2012
not rated yet 3 | with audio podcast

The tick-tock of the optical clock

(PhysOrg.com) -- UK's National Physical Laboratory time scientists have made an accurate measurement of the highly forbidden octupole transition frequency in an ytterbium ion, which could be used as the basis ...

Mar 29, 2012
3.9 / 5 (11) 3 | with audio podcast

UN sets stage for blazing fast new mobile devices

(AP) -- A United Nations telecom meeting has approved the next generation of mobile technology, which experts say will make devices 500 times faster than 3G smartphones and eliminate the wait time between the tap of a finger ...

Jan 19, 2012
3 / 5 (2) 1

New light at the end of the tunnel

(PhysOrg.com) -- An international team of scientists successfully concentrated the energy of infrared laser pulses using a nano funnel enabling them to generate extreme ultraviolet light pulses, which repeated ...

Oct 17, 2011
5 / 5 (3) 7 | with audio podcast

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 | with audio podcast