What is the wavelength of ruby laser?

The wavelength of the ruby laser is 694nm. This wavelength corresponds to the red region of the visible light spectrum. Ruby lasers emit light when the chromium ions in the ruby crystal are excited and then return to their ground state, releasing energy in the form of a photon at this specific wavelength.

This characteristic makes the ruby laser particularly useful in various applications, including hair removal and tattoo removal, where specific wavelengths are absorbed differently by various pigments and tissues. The understanding of this specific wavelength and its behavior under different conditions is essential for effective and safe laser treatments in the field of electrology and other applications.