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- 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 Many different types of lasers have been developed, with highly varied characteristics Laser is an acronym for
- Laser - Wikipedia
Laser 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
- What Are Lasers And How Do They Actually Work? - ScienceAlert
How do lasers do laser stuff? The beating heart of lasers are materials that give parts of the electromagnetic spectrum a boost of energy as they pass through This boost is referred to as ' gain ', and can effectively amplify the light's power Behind this amplification is a process called stimulated emission
- Lasers: Understanding the Basics - Photonics
The laser cavity, or resonator, is at the heart of the system A single transit through a collection of excited atoms or molecules is sufficient to initiate laser action in some high-gain devices such as excimer lasers; however, for most lasers, it is necessary to further enhance the gain with multiple passes through the laser medium
- How do lasers work? | Who invented the laser? - Explain that Stuff
An easy-to-understand explanation of how lasers work, with a simple diagram showing what's inside a laser
- Laser - Introduction - What is a Laser?
Laser emits light through a process called stimulated emission of radiation which amplifies or increases the intensity of light Some lasers generate visible light but others generate ultraviolet or infrared rays which are invisible In general, when electron jumps from a higher energy level to a lower energy level, it emits light or photon
- What Is a Laser? How Does It Work? - Optics Mag
A laser diode or an injection laser is a semiconductor device that emits coherent light During operation, the device is pumped with electrical current or light from another laser
- What is Laser Technology and How is it Used?
Laser Technology is everywhere in the modern world Scientists and engineers have found ways to get atoms to emit very focused light and create powerful beams of light Lasers work differently from the normal lamps we use every day Unlike normal light bulbs, which emit light in all directions, lasers spread in a single, narrow beam that remains focused over long distances The basic idea
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