Which of the following are the basic parameters of laser?

The basic parameters of laser include important factors that define the laser's operation and its effects on the tissue being treated. Wavelength is crucial because it determines the laser's interaction with different chromophores (coloring agents in the skin or hair that absorb the laser light), affecting the efficacy of the procedure. Spot size refers to the area over which the laser light is delivered; a larger spot size can treat a broader area but may cause less precise targeting, while a smaller spot size allows for more focused treatment of specific areas.

Fluence, which is the energy per unit area, is vital for ensuring that the laser energy is delivered effectively to achieve the desired biological response. Pulse width (or pulse duration) indicates how long the laser energy is applied, impacting the heating of the target tissue while minimizing damage to surrounding areas. Each of these parameters plays a crucial role in ensuring effective and safe outcomes in laser treatments, making them fundamental elements for understanding laser technology in electrology and other related fields.