Tables 1, thus confirms our assertion above that there is an increase in the frequency of light
when the source or emitter is further away from the body than the receiver.
The second is a temporal phase modulator, which modifies the optical frequency of light
depending on when the wave passes through the device.
The scientists measured the frequency of light
emitted as the electrons returned to a lower energy state.
That's better than a wristwatch but about a hundred millionth as precise as today's best atomic clocks, which count the frequency of light
emissions from an atom as its electrons release small bursts of energy.
The distance between the mirrors in this "optical cavity" determines the frequency of light
that will resonate--just as the length of a guitar string determines its pitch.
New kinds of metamaterials are being designed with a specific orientation, or chirality, to put an unnatural twist on light, even with T-rays, a frequency of light
that has been difficult to harness.
The researchers demonstrated that they could custom design a crystal to double the frequency of light
passing through it.
For example, such interactions cause the frequency of light
lasers to double when they pass through certain crystals--a property now being exploited by laser pointer makers to bring green-light pointers to market.
Among the most intriguing--and perhaps most useful--materials of this sort are those exhibiting nonlinear optical behavior that increases the frequency of light
passing through them.
Because relativistic motion alters the frequency of light
, approaching objects actually would appear more blue (signifying higher frequency) and receding objects more red.
Such waves could shift the frequency of light
coming from pulsars and other astronomical objects, complicating the interpretation of such observations.
Chemists quickly grasped the idea of using a laser to hit the molecule with one frequency of light
, exciting one specific chemical bond in the molecule until it broke, leaving it open to react with another molecule but leaving the other bonds untouched.