Combining a green laser, a blue ray laser, and a red laser, he is able to produce a variety of color including white. There are step by step instructions on how to make a multicolored laser.

Lasers are known for the monochromatic nature of their light, so much so that you might never have thought there could be such a thing as a white laser. But in the weird world of physics ...

“Cold laser therapy uses low levels of white light (that will not heat the body’s tissue), whereas red light therapy uses low-level red light to stimulate healing.” Benefits of cold laser vs ...