How does a CO2 laser primarily work?

A CO2 laser primarily works by emitting a continuous wave of energy to vaporize tissue. This type of laser operates in a specific wavelength range that is highly absorbed by water and organic tissues, making it extremely effective for cutting and vaporizing biological tissues during surgical procedures. The continuous wave output allows for a steady delivery of energy, which results in a more controlled application and minimizes thermal damage to surrounding tissues. This characteristic is crucial in medical and aesthetic procedures, as it aids in precision and enhances patient safety.

In contrast, the other options represent processes or mechanisms that do not accurately describe the fundamental operation of a CO2 laser. For instance, while pulsed waves are a feature of some lasers, CO2 lasers commonly provide continuous energy for optimal tissue interaction. Cooling of tissue is unrelated to the function of the CO2 laser itself, as these lasers do not provide cooling; instead, they generate heat for tissue ablation. Lastly, CO2 lasers do not generate ionizing radiation, which is typically associated with different types of lasers or radiation sources. This adherence to non-ionizing energy is part of what makes CO2 lasers suitable for a range of medical applications.