What is the wavelength of an alexandrite laser?

The wavelength of an alexandrite laser is indeed 755 nanometers (nm). This particular wavelength falls within the range of near-infrared light, which is effective for various dermatological and aesthetic purposes, including hair removal and treatment of certain skin conditions. The alexandrite laser is characterized by its ability to penetrate the skin to a moderate depth, making it suitable for targeting melanin in hair follicles while minimizing damage to surrounding tissues.

The specific wavelength of 755 nm is well-absorbed by the melanin present in the hair, which enhances its efficacy for various skin types, particularly lighter skin tones. This makes the alexandrite laser a popular choice among practitioners for its speed, versatility, and effectiveness in hair reduction treatments.

Understanding the significance of the specific wavelength is crucial because it directly relates to the laser's absorption properties and, consequently, its effectiveness in different applications.