Is it possible to have coherence between light source that are emitting light of different wavelength?
Two different light source are never coherent.
How can light have multiple wavelengths?
The refractive index of many materials (such as glass) varies with the wavelength or color of the light used, a phenomenon known as dispersion. This causes light of different colors to be refracted differently and to leave the prism at different angles, creating an effect similar to a rainbow.
What do you get when you have one light source emitting all different wavelengths of visible light?
We see these waves as the colors of the rainbow. Each color has a different wavelength. Red has the longest wavelength and violet has the shortest wavelength. When all the waves are seen together, they make white light.
Can light of different wavelengths interfere?
Two waves -or light waves- can interfere with each other even they do not have the same frequency or wavelength. Some of the wavelengths interfere constructively, and other wavelengths interfere destructively.
How two coherent sources of light are produced forms a single source?
Two sources are said to be coherent when the waves emitted from them have the same frequency and constant phase difference. Interference from such waves happen all the time, the randomly phased light waves constantly produce bright and dark fringes at every point. But, we cannot see them since they occur randomly.
Do LEDs emit coherent light?
Unlike a laser, the light emitted from an LED is neither spectrally coherent nor even highly monochromatic. However, its spectrum is sufficiently narrow that it appears to the human eye as a pure (saturated) color.
Can light emit more than one type of light?
Yes it is possible. spectrum of emitted light depends upon the chemical composition of the source.
Can a wave have multiple wavelengths?
The AOTF will transmit multiple wavelengths when multiple electrical drive frequencies are simultaneously applied to the transducer. As a result of these problems the number of simultaneous wavelengths that can be generated is limited and the power balance between the wavelengths might not be very stable.
Can a light source emits more than one type of light?
What do different wavelengths of light represent?
Different wavelengths of light appear to our eyes as different colors. Shorter wavelengths appear blue or violet, and longer wavelengths appear red. The animation at the right shows a schematic drawing of a wave. The white line represents the wavelength.
What is interference of light and what are the different ways in which light interferes?
There are two types of interference. When two light waves superpose with each other in such away that the crest of one wave falls on the crest of the second wave, and trough of one wave falls on the trough of the second wave, then the resultant wave has larger amplitude and it is called constructive interference.
Can waves of different frequencies interfere?
Yes, interference will always occur between two waves. But the interference between two waves of different frequencies will not exactly be the same as the interference pattern usually taught, which is almost always between two waves of same frequency. The distinction can easily be seen mathematically.