Laser Overview

Laser energy is a type of electromagnetic radiation, which is a form of energy that has properties of both waves and discrete particles of energy called photons. Electromagnetic radiation can be characterized as gamma rays, X-rays, ultraviolet rays, visible light, infrared radiation, microwaves, and radio waves. All laser beams have three common characteristics:

1. Monochromacity: A single wavelength or a very narrow band of wavelengths is characteristic of the particular lasing medium used.
2. Temporal and spatial coherence: Emitted waves are in phase both in time and space. Coherence results in a collimated, unidirectional beam of light.
3. Extreme brightness may be created because a large amount of energy is contained in a small area.

Lasers are in routine clinical use in most medical and surgical specialties, and extensions of laser technology to new clinical applications continue to occur as investigational uses are pursued. Specialties in which medical lasers are used include neurosurgery, dermatology, dentistry, and veterinary medicine.

To learn more about LSO visit our Medical Laser Safety Officer Online Training web page.