Why isn't laser light white?

xianlingyue

Why isn't laser light white? [Copy link]

The color of light is determined by its frequency. White light is actually composed of seven different colors of light, while laser light is formed by light of a single frequency (or a frequency very close to it), so laser light cannot be white light.

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qwqwqw2088

White light is mixed light, not a single frequency light

topwon

White light is actually composed of seven different colors of light. If you look deeper, this statement is not accurate. . . .

nemon

Impure

lanhua

If it is not monochrome, it cannot be called a laser! The definition of laser is single frequency!

lkh747566933

Isn't laser light of a single frequency? White light is mixed light, not a single frequency.