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Facts About Lasers

Laser Applications

The characteristics of laser light make lasers a valuable tool in many areas, such as communications, industry, medicine, military and scientific research.

Communications: Lasers working in the infrared area are right now revolutionizing the communications industry. A laser transmits voice or data via fiber optic cables at much improved speed and capacity. These lasers are part of the broadband revolution we hear about daily. Other everyday, low power applications for lasers are CD and DVD players.

Industry: Lasers are used to cut, drill, weld, guide and measure with high accuracy. For some of these applications very powerful lasers (10,000 Watts) are used, and the laser light is focused in a very small area (0.0025 mm), which produces an extreme heat (10,000 F) that can cut through and melt extremely hard materials. Commonly used lasers in industrial environments are Excimer, Neodymium YAG, and Carbon Dioxide. Click here to see some practical applications!

Medicine: Surgeons use lasers to remove deceased body tissue, with little damage to surrounding area. In addition lasers seal off blood vessels severed during the surgery, thus reducing the amount of bleeding. Laser eye surgery is becoming common for correcting near sightedness as well as for reattaching retinas. Commonly used lasers in medicine are Excimer, several different harmonics of YAG lasers as well as Carbon Dioxide lasers.

Military: Lasers are used in military applications both as weapons and for guidance systems for weapons. Future applications may include very powerful lasers that can down planes and missiles (SDI).

Click here to learn what a Laser is!

Click here to read about Light Transmission and Optical Density!

Click here to read about the Human Eye!


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