How does laser light differ from regular light sources?

Laser light is distinct from regular light sources primarily because it can be directed in a narrow beam. This directionality results from the coherent nature of laser light, meaning that the light waves are emitted in phase and travel in the same direction. This property allows lasers to have a much smaller divergence than traditional light sources, which disperse light in various directions.

The narrow beam of laser light enables it to be focused on a specific target with precision, making it useful in various applications such as medical procedures, cutting materials, and performing intricate surgeries. This characteristic is not typically found in regular light sources, which emit light omnidirectionally and are less effective for precise applications.

In contrast, while some laser light may produce heat and can be both visible and invisible, these are properties not exclusive to laser light. Regular light sources can also produce heat and can emit light in the visible spectrum. The power of laser light varies significantly depending on the device, and some lasers can be incredibly powerful compared to everyday light sources.