What is Laser? Meaning
A Light Amplification by Stimulated Emission of Radiation is an optical device that emits coherent low-cal (electromagnetic radiation). The term LASER is an acronym for Light Amplification yesteryear Stimulated Emission of Radiation.
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Typically, lasers are idea of every bit emitting low-cal inwards a narrow, low-divergence beam, amongst a narrow wavelength spectrum (monochromatic light). Lasers quest non cause got either characteristic, however, it is the coherence of the laser's output that is distinctive. Most other low-cal sources emit incoherent light, which has a stage that varies randomly amongst fourth dimension together with position.
Uses together with application of Laser
The initiative off application of lasers visible inwards the daily lives of the full general population was the supermarket barcode scanner, introduced inwards 1974. The laserdisc player, introduced inwards 1978, was the initiative off successful consumer production to include a laser, merely the compact disc histrion was the initiative off laser-equipped device to drib dead really mutual inwards consumers' homes, showtime inwards 1982, followed presently yesteryear Light Amplification by Stimulated Emission of Radiation printers.
The initiative off working Light Amplification by Stimulated Emission of Radiation was demonstrated on May 16, 1960 yesteryear Theodore Maiman at Hughes Research Laboratories. Since then, lasers cause got drib dead a multi-billion dollar industry.
- By far the largest unmarried application of lasers is inwards optical storage devices such every bit Compact Disc together with DVD players, inwards which a semiconductor Light Amplification by Stimulated Emission of Radiation less than a millimeter broad scans surface of the disc.
- The minute largest application is fiber-optic communication.
- Other mutual applications of lasers are bar code readers, Light Amplification by Stimulated Emission of Radiation printers together with Light Amplification by Stimulated Emission of Radiation pointers.
- In manufacturing, lasers are used for cutting, bending, together with welding metallic together with other materials, together with for ‘marking’ i.e. producing visible patterns such every bit letters yesteryear changing the properties of a textile or yesteryear inscribing its surface.
- In science, lasers are used for many applications. One of the to a greater extent than mutual is Light Amplification by Stimulated Emission of Radiation spectroscopy, which typically takes wages of the laser's well-defined wavelength or the possibility of generating real brusk pulses of light.
- Lasers are used yesteryear the military for range-finding, target designation, together with illumination. These cause got too begun to move used every bit directed-energy weapons.
- Lasers are used inwards medicine for surgery, diagnostics, together with therapeutic applications.
Some of the other applications of Light Amplification by Stimulated Emission of Radiation include:
- Medicine : Bloodless surgery, Light Amplification by Stimulated Emission of Radiation healing, surgical treatment, kidney rock treatment, oculus treatment, dentistry, etc.
- Industry : Cutting, welding, textile rut treatment, mark parts.
- Defense : Marking targets, guiding munitions, missile defense, electro-optical countermeasures (EOCM), choice to radar.
- Research : Spectroscopy, Light Amplification by Stimulated Emission of Radiation ablation, Laser annealing, Light Amplification by Stimulated Emission of Radiation scattering, Light Amplification by Stimulated Emission of Radiation interferometry, LIDAR (Light Detection And Ranging).
- Product development : Laser printers, CDs, barcode scanners, thermometers, Light Amplification by Stimulated Emission of Radiation pointers, holograms, bubblegrams.
- Laser lighting displays : Laser low-cal shows.
- Laser pare procedures : such every bit acne treatment, cellulite reduction together with pilus removal.
