Sentences with phrase «at precise frequencies»

In another experiment, he measured the frequency of an optical transition in cesium atoms (a change in their state that absorbs or emits light at a precise frequency) using a mode - locked laser to span the difference in frequency between two CW lasers.

As mentioned earlier, a CW laser sends out a steady stream of light at a precise frequency, and its spectrum looks like one sharp spike.

The buoys relay their positions by transmitting radio signals at a precise frequency.

Not exact matches

This way the researchers obtain data for each type of mutation as well as precise mutation frequencies at any position of the RNA.

Using a stack of about 80 alternating layers of precise thickness, Shen says, «We are able to reflect light at most of the angles, over a very broad band [of colors]: the entire visible range of frequencies.»

Satellite transmissions can synchronise older atomic clocks, which track atoms that vibrate at microwave frequencies, but are not precise enough for optical clocks that use faster, optical frequencies.

In 2005 Ye's group at JILA and Hänsch's group in Garching generated a precise frequency comb in the extreme ultraviolet (not far below x-rays in frequency).

«Optical distance measurement at record - high speed: Microresonator - based optical frequency combs enable highly - precise optical distance ranging at a rate of 100 million measurements per second - publication in Science..»

The unique topology creates a broad, yet focused and precise soundstage, with accurate frequency response and imaging at all listening positions.