LASER Full Form: Light Amplification By Stimulated Emission of Radiation

By Aina Parasher|Updated : September 12th, 2022

The LASER full form is Light amplification by stimulated emission of radiation. It is an electronic device that emits electromagnetic radiation. This electromagnetic radiation is produced through optical amplification. Know more about the LASER full form in detail in the upcoming sections.

Lasers are used in various technologies, and their properties have changed. Humans have employed these devices in a variety of ways because the rays are beneficial to them. Let us discuss LASER full form, advantages, disadvantages, and more.

Table of Content

What is the Full Form of LASER?

The full form of LASER is Light amplification by stimulated emission of radiation. It is a device that induces certain atoms or molecules to emit light with a certain wavelength. It absorbs a small portion of visible, infrared, or ultraviolet light.

Lasers are used in Optical disc drives, laser printers, barcode scanners, DNA sequencing devices, fiber-optic and free-space optical communication, laser surgery and skin treatments, laser chip manufacturing (photolithography), cutting and welding materials, military and law enforcement equipment for marking targets and measuring range and speed. After discussing the LASER full form, let us discuss its history, working principles, advantages, and disadvantages.

History of LASER

Albert Einstein provided the first theoretical foundations for Light amplification by stimulated emission of radiation (LASER full form) in 1917, but Theodore H. Maiman of Hughes Laboratory created the first laser in 1960. It was based on the theory advanced by Arthur Leonard Schawlow and Charles Hard Townes.

Since the beginning of the history of lasers, laser research has created numerous enhanced and specialised laser types that are optimised for various performance objectives, including:

  • Maximum average output power
  • Maximum peak pulse energy
  • Maximum peak pulse power
  • New wavelength bands
  • Minimum output pulse time
  • Maximum linewidth
  • Minimum cost

Working Principle of LASER

The LASER stands for Light amplification by stimulated emission of radiation. The principles utilized by the equipment can be used to understand the working of a LASER device. A laser operates according to quantum mechanics principles. According to the principle, atoms and molecules have a specific amount of energy stored in them, depending on the molecules and atoms used. This theory can be used effectively to produce a variety of lasers.

Types of LASER

People have come to understand the significance of Light amplification by stimulated emission of radiation (LASER full form) over time. As a result, they have been inspired to produce several LASER models. Some of the various kinds of lasers include the following:

  • Solid-State LASER
  • Gas LASER
  • Semiconductor LASER
  • Chemical LASER
  • Liquid or Dye LASER
  • Excimer LASER

Applications of LASER

The LASER full form is Light amplification by stimulated emission of radiation. Due to its unique characteristics of the laser, Light amplification by stimulated emission of radiation (LASER full form) is used in various applications. It is employed in producing many different electronic devices, including CD ROMs and barcode readers. The applications of LASER in various components are given below.

  • Utilised in DVD and CD ROMs.
  • Used in a barcode scanning technology.
  • Utilised as a crucial component of nuclear fusion reactors.
  • Used in various devices for cutting, drilling, surface treatment, soldering, and welding.
  • Used in dental and cosmetic treatment equipment for use in medicine.
  • Utilised in laser printing equipment.
  • Used in military assets, such as anti-missile systems.

Advantages of LASER

As we all know, the full form of LASER is Light amplification by stimulated emission of radiation. Let us check the advantages of LASER given below.

  • Since it has a huge capacity to sustain information, it is employed for information transmission in communication.
  • Since laser radiation is devoid of electromagnetic interference, this idea of no interference is applied in wireless communication systems via free space for telecommunication and computer networking.
  • There is hardly any signal leakage in laser radiation.
  • Laser-based fibre optic wires are employed in fibre optic systems because they are exceedingly light.
  • Because they are less dangerous than X-rays, lasers are frequently utilised in the medical field to diagnose cancers/tumours.

Disadvantages of LASER

Having discussed the LASER full form and advantages, how can we miss the cons of the same? Every device has its advantages and disadvantages. The disadvantages of LASER are-

  • Lasers cost a lot to maintain, which results in hefty costs for medical professionals and hospital executives.
  • Based on laser equipment, lasers increase complications and treatment time.
  • Patients requiring laser-based therapy must spend a lot of money because lasers are expensive.

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FAQs on LASER Full Form

  • The full form of LASER is Light amplification by stimulated emission of radiation. It is an electromagnetic device that may emit electromagnetic radiation in the form of light.

  • Optical disc drives, laser printers, barcode scanners, DNA sequencing equipment, fibre optic and free-space optical communication, semiconducting chip manufacturing,  laser surgery and skin treatments, and cutting and welding materials all make use of lasers.

  • When electrons transition from high-energy to low-energy orbits, they release energy. This energy is then used to trigger the emission of two photons that are parallel, identical in wavelength, and phase.

  • The Romanian Magurele Laser now holds the title of the most powerful laser. The laser in Magurele, Romania, close to Bucharest, achieved the maximum power, 10 PetaWats, marking a global premiere.

  • The characteristics of LASER are given below.

    • Compared to light from other sources, the beam is significantly narrower.
    • Even though a laser beam creates a light spot on the wall across from it, the line's alignment is not exact.

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