What is the wavelength of the Nd:YAG laser?

The wavelength of the Nd:YAG (Neodymium-doped Yttrium Aluminum Garnet) laser is 1064 nm. This specific wavelength is significant because it falls within the infrared spectrum, making it invisible to the human eye. Nd:YAG lasers are widely used in medical applications, industrial machining, and laser aesthetics due to their ability to penetrate tissues and materials deeply, as well as their efficiency in generating high-intensity beams.

Understanding the properties of this wavelength is crucial for applications such as laser hair removal, where it effectively targets melanin in hair follicles while minimizing damage to surrounding skin. The choice of 1064 nm allows for versatile usage in various settings due to its effective absorption characteristics and ability to be modified for specific applications, including frequency doubling to produce a wavelength of 532 nm for other uses, but fundamentally the primary wavelength remains 1064 nm.