Light Amplification by Stimulated Emission of Radiation
Full Form of LASER
What is LASER?
LASER is an acronym for Light Amplification by Stimulated Emission of Radiation. It is a device that produces a highly focused, monochromatic, and coherent beam of light through the process of optical amplification based on the stimulated emission of electromagnetic radiation. The underlying principle was first theorised by Albert Einstein in 1917, and the first working laser was built by Theodore Maiman in 1960. In India, lasers have become integral to a wide range of sectors. Medically, Indian hospitals employ lasers for precise surgeries like LASIK eye correction, cosmetic procedures, and cancer treatments. The manufacturing industry uses high-power lasers for cutting, welding, and engraving metals in automotive and textile hubs. Scientific research institutions such as the Indian Institute of Science and the Raja Ramanna Centre for Advanced Technology conduct advanced laser research, including development of ultrafast lasers. The Indian Space Research Organisation utilises laser-based instruments for satellite ranging and atmospheric studies. In defence, laser target designators and range-finders are critical. From an educational standpoint, the concept of laser physics is a staple in Indian high school and undergraduate syllabi, frequently appearing in competitive examinations like JEE and NEET. Barcode scanners, fibre-optic communication, and laser printers are everyday examples of its ubiquity, making LASER a foundational topic in modern science education.
LASER का फुल फॉर्म
उत्तेजित विकिरण द्वारा प्रकाश प्रवर्धन
Example
Raja Ramanna Centre for Advanced Technology in Indore has developed indigenous high-power lasers for industrial and medical applications, reducing India's reliance on imported technology.