What does laser mean?

Definitions for laser
ˈleɪ zərlaser

Here are all the possible meanings and translations of the word laser.

Princeton's WordNet

  1. laser, optical masernoun

    an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light

Wikipedia

  1. Laser

    A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word "laser" is an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light which is coherent. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers and lidar. Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum. Alternatively, temporal coherence can be used to produce ultrashort pulses of light with a broad spectrum but durations as short as a femtosecond. 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 marking targets and measuring range and speed, and in laser lighting displays for entertainment. Semiconductor lasers in the blue to near-UV have also been used in place of light-emitting diodes (LED's) to excite fluorescence as a white light source. This permits a much smaller emitting area due to the much greater radiance of a laser and avoids the droop suffered by LED's; such devices are already used in some car headlamps.

Freebase

  1. Laser

    A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The term "laser" originated as an acronym for Light Amplification by Stimulated Emission of Radiation. Lasers differ from other sources of light because they emit light coherently. Its spatial coherence allows a laser to be focused to a tight spot, and this enables applications like laser cutting and laser lithography. Its spatial coherence also keeps a laser beam collimated over long distances, and this enables laser pointers to work. Laser also have high temporal coherence which allows them to have a very narrow spectrum, i.e., they only emit a single color of light. Their temporal coherence also allows them to emit pulses of light that only last a femtosecond. Lasers have many important applications. They are used in common consumer devices such as DVD players, laser printers, and barcode scanners. They are used in medicine for laser surgery and various skin treatments, and in industry for cutting and welding materials. They are used in military and law enforcement devices for marking targets and measuring range and speed. Laser lighting displays use laser light as an entertainment medium. Lasers also have many important applications in scientific research.

Chambers 20th Century Dictionary

  1. Laser

    lā′ser, n. a gum-resin from North Africa, esteemed by the ancients as a deobstruent and diuretic. [L. laser, juice of laserpitium.]

Editors Contribution

  1. Laser

    The Internet: The Internet is a global communication system for transmitting data across different types of media. It can be described as a global network that connects different networks, whether they are private, public, commercial, academic, or government networks, using wireless technologies or optical fibers. The computer uses the control protocol Transmission / Internet Protocol., which provides it with a host that enables it to access the Internet, and the Internet has raised the standards of regular networks to global standards.

    Submitted by anonymous on August 31, 2020  

Matched Categories

British National Corpus

  1. Nouns Frequency

    Rank popularity for the word 'laser' in Nouns Frequency: #2593

Anagrams for laser »

  1. Earls

  2. Lares

  3. Rales

  4. Reals

How to pronounce laser?

How to say laser in sign language?

Numerology

  1. Chaldean Numerology

    The numerical value of laser in Chaldean Numerology is: 5

  2. Pythagorean Numerology

    The numerical value of laser in Pythagorean Numerology is: 1

Examples of laser in a Sentence

  1. Keoki Jackson:

    Fiber-optics lasers are revolutionizing direct energy systems, we are investing in every component of the system – from the optics and beam control to the laser itself – to drive size, weight, and power efficiencies.

  2. Emily Brooke:

    It tackles the most common cause of fatality, which is the blind spot. According to Emily Brooke, 79 percent of bicycles involved in crashes are traveling straight ahead when a vehicle turns into them. Emily Brooke said Emily Brooke chose the 20-foot distance because it's half the length of a bus, and Emily Brooke wanted the laser image to be green because the human eye is most sensitive to green light. TINY, LENS-FREE CAMERA COULD HIDE IN CLOTHES, GLASSES Drivers just see it and all they need to do is not turn, not react, not turn into the cyclist or not pull out, people see it and go, ‘ What is that ? ’ And that's perfect, as long as they don't make that turn, which can be potentially fatal …. Emily Brooke said The Laserlight alerts not only drivers, but pedestrians, too, about oncoming bikes. One of the most obvious cases.

  3. Robert Scheidt:

    If I can be consistent and avoid mistakes, I'm confident I have a medal shot, but the Laser is one of the classes where sailors are most aggressive.

  4. Austin Powers International Man of Mystery:

    Dr. Evil You know, I have one simple request. And that is to have sharks with frickin' laser beams attached to their heads Now evidently my cycloptic colleague informs me that that cannot be done. Ah, what do I pay you people for, honestly Throw me a bone here

  5. Deborah Birx:

    The question is really can we be laser focused rather than generic across the country ?

Images & Illustrations of laser

  1. laserlaserlaserlaserlaser

Popularity rank by frequency of use

laser#1#2363#10000

Translations for laser

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