How does pulse width affect laser performance?

Pulse width significantly influences how a laser interacts with tissues, affecting both penetration depth and thermal effects. A shorter pulse width means the energy is delivered in a brief duration, which can minimize thermal diffusion into surrounding tissues, allowing for precise and targeted treatment. This characteristic is particularly advantageous in procedures that require careful management of heat to prevent damage to non-targeted areas.

On the other hand, longer pulse widths can lead to deeper tissue penetration but may increase thermal effects, which can be beneficial for certain types of treatments like hair removal or tattoo removal where deeper follicle targeting is required. Understanding pulse width enables practitioners to tailor the laser treatment to the specific needs and conditions of the patient, improving outcomes while managing risks associated with thermal injury or collateral damage.