As you read in school textbooks, light is electromagnetic waves that transmits energy or heat to you. Would you like to become familiar with a wonderful feature of light that has led to its many uses? So stay with us until the end of this text.

 

As I said, the light is the electromagnetic waves. Waves have a property that is called wavelength. The wavelength is actually the color of light that we see. The absorption of light in different materials also occurs based on the wavelength of light. Therefore, this is the reason why cosmetic lasers should use a wavelength of, say, 800 nm for light skins and a wavelength of, say, 750 nm for dark skins. It is because other wavelengths may burn and destroy the skin and cause serious damages to your body. One of the most interesting differences between the laser light and conventional light is that it is monochromatic. Therefore, sunlight, due to the fact that it has many wavelengths in it, causes serious damage to the skin, which is called sunburn. But the monochromatic laser light helps a lot to the beauty of your skin. Do you have a memory of sunburn or a laser skin rejuvenation session? Write to us in the comments.