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Laser - Wikipedia A telescope in the Very Large Telescope system producing four orange laser guide stars 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 originated as an acronym for light amplification by stimulated emission of radiation [1] [2] The first laser was built in 1960 by Theodore Maiman at
Laser | Definition, Acronym, Principle, Applications, Types | Britannica Laser, a device that stimulates atoms or molecules to emit light at particular wavelengths and amplifies that light, typically producing a very narrow beam of radiation The emission generally covers an extremely limited range of visible, infrared, or ultraviolet wavelengths
How do lasers work? | Who invented the laser? - Explain that Stuff When Theodore ("Ted") Maiman developed the first practical laser, few people realized how important these machines would eventually become Goldfinger, the 1964 James Bond movie, offered a tantalizing glimpse of a future where industrial lasers could slice like magic through anything in their path—even secret agents! Later the same year, reporting on the award of the Nobel Prize in Physics
Lasers: Understanding the Basics - Photonics Over 60 years have passed since the first demonstration of a laser in 1960 After the initial spark of interest, lasers were for a while categorized as “a solution waiting for a problem,” but bit by bit, the range of their applications has expanded to encompass fields as diverse as DNA sequencing, consumer electronics manufacturing, or freezing the motion of electrons around atoms
What Are Lasers And How Do They Actually Work? - ScienceAlert Lasers are devices that concentrate beams of light by forcing their waveforms and frequencies to align First developed in the 1960s to amplify microwaves, modern lasers technology can ramp up light rays in just about any part of the electromagnetic spectrum, with the exception of gamma waves The
What Is A Laser? | NIST - National Institute of Standards and Technology An explanation of lasers and their uses from NIST's William D Phillips, who shared the 1997 Nobel Prize in Physics for his pioneering work in using lasers to cool atoms to temperatures near absolute zero Dr Phillips leads NIST's Laser Cooling and Trapping Group, which continues to make fundamental discoveries in atomic, molecular, and optical physics, and is active in science education and
What Is a Laser? How Does It Work? - Optics Mag A laser is a highly concentrated light beam It is generated by a device that amplifies light waves The word “laser” is an acronym for “light amplification by stimulated emission of radiation ”
What is a laser? | Laser Applications | Spectral School What is a Laser? A laser is an intense light source that is coherent, directional, and monochromatic This means that the phases of the light waves are aligned, the waves travel in a single direction, and they emit a narrow range of wavelengths 1 This is different to other light sources, such as lamps or light-emitting diodes (LEDs), which are typically less intense, non-coherent (phases of
What Is a Laser? | How Is Laser Technology Used? A laser is a device that emits a beam of coherent light through an optical amplification process There are many types of lasers including gas lasers, fiber lasers, solid state lasers, dye lasers, diode lasers and excimer lasers