Assalamu Alaikum, my name is Disha now I want to talk with you about laser light, laser light is a very useful thing in our country. Laser is produced by the energy released by electrons moving from high-energy to low-energy orbits, followed by the collision with excited atoms (stimulated emission) releasing 2 photons identical in wavelength, phase, and parallel. Laser light must be absorbed by the tissue to exert biological effects. Lasers are used for recording and retrieving information. They are used in communications and in carrying TV and internet signals. We also find them in laser printers, barcode
scanners, and DVD players. They also help to make parts for computers and other electronics. 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 created when electrons in the atoms in optical materials like glass, crystal, or gas absorb the energy from an electrical current or a light. That extra energy “excites” the electrons enough to move from a lower-energy orbit to a higher-energy orbit around the atom's nucleus. is an anacronym that originated as an acronym for light amplification by stimulated emission of radiation.
There are many applications for laser technology including the following:
• Laser Range Finding.
• Information Processing (DVDs and Blu-Ray)
• Bar Code Readers.
• Laser Surgery.
• Holographic Imaging.
• Laser Spectroscopy.
• Laser Material Processing.
Lasers are often described by the kind of lasing medium they use - solid state, gas, excimer, dye, or semiconductor. Solid-state lasers have lasing material distributed in a solid matrix, e.g., the ruby or neodymium-YAG (yttrium aluminum garnet) lasers. The neodymium-YAG laser emits infrared light at 1.064 micrometers.
LASER stands for "Light Amplification by Stimulated Emission of Radiation." LASERs work as a result of resonant effects. The output of a LASER is a coherent electromagnetic field. In a coherent beam of electromagnetic energy, all the waves have the same frequency and phase. Lasers are able to produce high energy concentrations because of their monochromatic, coherent, and low divergence properties compared to an ordinary light source. As a result, they can be used to heat, melt, and vaporize most materials.
Typically, the control electronics operate on lower voltages: 3.3 to 5.5 V. Exceeding this voltage can damage elements in the Control or Power sections. The Current Source (or Output Stage) is designed for higher voltages (such as 30 V with the PLD family of laser diode drivers.
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My first achievement link Is,
https://steemit.com/hive-172186/@sinthiyadisha/achievement-1-my-1st-introductory-post-sinthiyadisha