What is the wavelength of a C02 laser?

The wavelength of a CO2 laser is 10,600 nm, which is in the infrared spectrum. This wavelength is particularly effective for medical and aesthetic applications, notably in laser hair removal and skin resurfacing. The longer wavelength allows the CO2 laser to penetrate deeply into the skin, where it effectively targets the water in the tissues, leading to effective thermal effects that help in hair reduction and skin treatments.

In the context of laser hair removal, the absorption properties at this wavelength are advantageous, as the CO2 laser can selectively target the hair follicles while minimizing damage to the surrounding skin. This characteristic is vital for ensuring the safety and efficacy of the procedure, making the CO2 laser a widely used option in various dermatological practices.

The other wavelengths mentioned belong to different laser types and serve distinct purposes. The 2,940 nm wavelength, for example, is typical for Erbium lasers used in skin resurfacing, while 694 nm and 755 nm wavelengths are associated with Ruby and Alexandrite lasers, respectively, which are also utilized for hair removal but operate on different principles and have different absorption characteristics compared to CO2 lasers.