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The first working laser was demonstrated on May 16, 1960 by US scientist Theodore Maiman at Hughes Research Laboratories.
Since then, lasers have become a multi-billion dollar industry. By far the largest single application of lasers is in optical storage devices such as compact disc and DVD players, in which a semiconductor laser less than a millimeter wide scans the surface of the disc. The second-largest application is fiber-optic communication. Other common applications of lasers are bar code readers, laser printers and laser pointers.
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The groundwork for the laser began with 19th century optics.
Then, in 1917, Albert Einstein, in his paper Zur Quantentheorie der Strahlung (On the Quantum Theory of Radiation), laid the foundation for the invention of the laser and its predecessor, the maser, in a ground-breaking rederivation of Max Planck's law of radiation based on the concepts of probability coefficients (later to be termed 'Einstein coefficients') for the absorption, spontaneous emission, and stimulated emission of electromagnetic radiation.
In 1928, Rudolf W. Ladenburg confirmed the existence of stimulated emission and negative absorption. In 1939, Valentin A. Fabrikant predicted the use of stimulated emission to amplify "short" waves.
In 1947, Willis E. Lamb and R. C. Retherford found apparent stimulated emission in hydrogen spectra and made the first demonstration of stimulated emission.
In 1950, Alfred Kastler (Nobel Prize for Physics 1966) proposed the method of optical pumping, which was experimentally confirmed by Brossel, Kastler and Winter two years later.
In 1952, the principle of the maser was described by Nikolay Basov and Alexander Prokhorov from the Lebedev Institute of Physics at an All-Union Conference on Radio-Spectroscopy held by USSR Academy of Sciences.
In 1953, Charles H. Townes, J. P. Gordon, and H. J. Zeiger built the first ammonia maser (a microwave beam generator) at Columbia University.
What else can I help you with?
What does abbreviation LASER stand for?
Light Amplification by Stimulated Emission of Radiation (LASER or laser.)
What is the past tense of laser?
The past tense of laser is lasered.
What type of laser is a thor laser?
A thor laser is a type of solid-state laser that uses a ceramic gain medium to produce high-energy pulses of laser light. It is known for its compact size, high efficiency, and reliability in industrial and scientific applications.
How can I convert a dot laser to a line laser?
To convert a dot laser to a line laser, you can use a cylindrical lens. This lens will focus the laser beam in one direction, creating a line instead of a dot. Simply attach the lens to the laser to achieve the desired effect.
Is a diode laser a nd. yag laser?
No, a diode laser and an Nd:YAG laser are two different types of lasers. A diode laser uses a diode as the laser medium and is commonly used for various applications such as hair removal and skin treatments. On the other hand, an Nd:YAG laser uses neodymium-doped yttrium aluminum garnet as the laser medium and is often used for medical and cosmetic procedures, as well as in industrial applications.
What year did laser technology come about?
8081490
What rhymes with laser tag?
come gag
What is the frequencies of laser?
They come in different frequencies.They come in different frequencies.They come in different frequencies.They come in different frequencies.
Does the Nerf laser tag gun come with the shotgun atachment?
Yes it does
Why would paper come out dirty on a laser printer?
The machine itself is dirty.
Is a laser printer an affordable option for home use?
Laser Printers are usually found in offices, but they are beginning to come into homes as well. Brother even has a 80$ Personal laser Printer which seems to be getting nice reviews.
What are some dangers or risks of laser hair removal?
Laser hair removal is generally safe when performed by trained professionals, but like any cosmetic treatment, it does come with some potential risks. Common side effects include temporary redness, swelling, or mild irritation in the treated area, which usually settles within a few hours to a couple of days. In rare cases, improper settings or inexperienced handling can cause burns, blistering, or changes in skin pigmentation, especially on darker or recently tanned skin. This is why choosing a reputable clinic for services like Men Laser Rozelle is important, as experienced practitioners use the correct technology and settings to minimise risks and ensure safe, effective results.
What is the medical term for treating a cold sore with laser?
As far as I know cold sores are not treated with lasers, they can get aggravated and or they can still come back even if you do treat it with a laser.
Where can I get an industrial laser that I can attach to the head of a shark ?
BigLaser.com has plenty of industrial lasers, but I still don't see why you can't come up with something more efficient than a shark with a laser beam attached to its head. Industrial Laser Systems should have exactly the industrial laser you're looking for.
What is likely to cause a page to come out of a laser printer completely blank?
empty buffer
What colors do laser pointers come in?
Laser pointers are available in red, blue, green, yellow, and violet (purple). Green laser pointers are the most preferred of all the colors because they are the brightest, most visible, and can be seen the farthest distances.
What are laser thermometers used for?
Laser thermometers are used to measure the surface temperature of an object. These types of thermometers come in handy when an object is very large or too far away.
