What exactly is a laser?

What exactly is a laser?

laser, a device that stimulates atoms or molecules to emit light at particular wavelengths and amplifies that light, typically producing a very narrow beam of radiation. ... Laser is an acronym for “light amplification by the stimulated emission of radiation.”

What's a laser used for?

Lasers are used in optical disc drives, laser printers, barcode scanners, DNA sequencing instruments, fiber-optic, semiconducting chip manufacturing (photolithography), and free-space optical communication, laser surgery and skin treatments, cutting and welding materials, military and law enforcement devices for ...

What are the 3 types of lasers?

Types of lasers

• Solid-state laser.
• Gas laser.
• Liquid laser.
• Semiconductor laser.

What is a laser called?

Light Amplification by Stimulated Emission of Radiation The letters in the word laser stand for Light Amplification by Stimulated Emission of Radiation. The letters in the word laser stand for Light Amplification by Stimulated Emission of Radiation. A laser is an unusual light source.

How far can a laser go?

In total darkness we can see a

How do lasers cut?

Laser cutting works by directing the output of a high-power laser most commonly through optics. ... The focused laser beam is directed at the material, which then either melts, burns, vaporizes away, or is blown away by a jet of gas, leaving an edge with a high-quality surface finish.

How far can laser light travel?

Around 100 meters away from a red laser pointer, its beam is about 100 times wider and looks as bright as a 100-watt light bulb from 3 feet away. Viewed from an airplane 40,000 feet in the air -- assuming there's no clouds or smog -- the pointer would be as bright as a quarter moon.

How are lasers used in everyday life?

Lasers are key components of many of the products that we use every day. Consumer products like Blu-Ray and DVD players rely on laser technology to read information from the disks. Bar code scanners rely on lasers for information processing. Lasers are also used in many surgical procedures such as LASIK eye surgery.

What is a Class 4 laser?

Class 4 is the highest class in terms of laser hazards. If you're within the hazard zone, you're exposed to severe eye and skin injuries. In addition, combustible materials shouldn't be in the laser's surroundings to avoid fire hazards. Diffuse reflections of class 4 lasers are also hazardous.

How many wavelengths does a laser have?

Ultraviolet radiation for lasers consists of wavelengths between 1 nm. The visible region consists of radiation with wavelengths between 4 nm....

LASER TYPE	WAVELENGTH (Nanometers)
Helium Neon	543, 594, 612, and 632.8
Krypton	337..3 (647..4 most used)
Ruby	694.3
Laser Diodes	6

How to use laser X?

• To select a game mode, use any Laser X blaster in red or blue team mode to shoot the tower. Each shot will cycle through the 10 game modes which we outline below. Once you've selected the mode you want, simply press the red button again to start playing. 1-8 are standard game modes for 1 or 2+ players.

What is a laser X gaming tower?

• The Laser X Gaming Tower adds new dimensions of play to the Laser X laser tag experience! Players can test their skill, speed and accuracy in one player challenges or play the same games head to head and even in multi player modes. Full color lighting effects mean you can keep track of your progress and play.

What is a laser X tower?

• The Laser X Tower includes 10 built-in games—four single player games and five that require two or more players. Kids blast the tower during a game of Laser X to hit multiple players simultaneously from up to 150 feet away.

What is an X - ray laser?

• X ray Lasers. An X-ray Laser is a laser device which emits in the spectral region of X-rays, i.e., with wavelengths of only a few nanometers. In this extreme spectral region, traditional laser Gain media can not be used.