Due to the nature of this interaction, engineers and scientists have long known that in order to reverse the process and make an object "invisible," the color of light
waves hitting the object has to be manipulated.
White tuning allows users to change the color of light
from warm to neutral to cool in appearance.
Ask: What color of light
reflects off the blue surface in the diagram?
Unlike the fluorescent colors of quantum dots, the colors emitted by the new carbon dots depend on the color of light
that the researchers use to excite them.
It does what a cloud does optically--that is, it changes the intensity and color of light
. It's made of about five hundred feet of theater gels in eleven different colors, all crumpled up and held together by superstrength clothespins of my own design.
Lasing materials can be crystals, gases or semiconductor (diode) materials, each determining a unique wavelength or color of light
emitted from the laser.
A typical laser produces one color of light
with superb precision.
Each component is designed to absorb a different color of light
, with the top, middle, and bottom segments capturing blue, green, and red light, respectively.
Models based on this picture successfully predict the intensity and color of light
emitted by a variety of atoms in the sun's chromosphere.