Laser Applications

 

25 applications of laser

The laser has in most firearms applications been used as a tool to enhance the targeting of other weapon systems. For example, a laser sight is a small, usually visible-light laser placed on a handgun or a rifle and aligned to emit. May 27,  · Hi, Apart from the applications of LASERs mentioned by Aman, I want to highlight some properties of LASER with which it will be easy to relate (guess) the applications. 1. LASERs are the beam of light (very high frequency EM wave) which is monocro. About Laser Institute of America. Laser Institute of America (LIA), founded in , is the professional society for laser applications and safety. Our mission is to foster lasers, laser applications, and laser safety worldwide. LIA cultivates innovation, ingenuity and inspiration to promote the continued growth and safe use of laser applications.


Applications of Lasers


The highly collimated beam of a laser can be further focused to a microscopic dot of extremely high energy density. This makes it useful as a cutting and cauterizing instrument. Lasers are used for photocoagulation of the retina to halt retinal hemorrhaging and for the tacking of retinal tears. Higher power lasers are used after cataract surgery if the supportive membrane surrounding the implanted lens 25 applications of laser milky.

Photodisruption of the membrane often can cause it to draw back like a shade, almost instantly restoring vision, 25 applications of laser.

A focused laser can act as an extremely sharp scalpel for delicate surgery, cauterizing as it cuts. The cauterizing action is particularly important for surgical procedures in blood-rich tissue such as the liver.

Lasers have been used to make incisions half a micron wide, compared to about 80 25 applications of laser for the diameter of a human hair. The highly collimated beam of a laser can be further focused to a microscopic dot of extremely high energy density for welding and cutting. The automobile industry makes extensive use of carbon dioxide lasers with powers up to several kilowatts for computer controlled welding on auto assembly lines.

Garmire points out an interesting application of CO2 lasers to 25 applications of laser welding of stainless steel handles on 25 applications of laser cooking pots.

A nearly impossible task for conventional welding because of the great difference in thermal conductivities between stainless steel and copper, it is done so quickly by the laser that the thermal conductivities are irrelevant. Helium-neon and semiconductor lasers have become standard parts of the field surveyor's equipment.

A fast laser 25 applications of laser is sent to a corner reflector at the point to be measured and the time of reflection is measured to get the distance. Some such surveying is long distance! The Apollo 11 and Apollo 14 astronauts put corner reflectors on the surface of the Moon for determination of 25 applications of laser Earth-Moon distance. A powerful 25 applications of laser pulse from the MacDonald Observatory in Texas had spread to about a 3 km radius by the time it got to the Moon, but the reflection was strong enough to be detected.

We now know the range from the Moon to Texas within about 15 cm, a nine significant digit measurement. A pulsed ruby laser was used for this measurement, 25 applications of laser.

Laser cutters are credited with keeping the U. Computer controlled laser garment cutters can be programmed to cut out size 6 and then size 9 garments - and that might involve just a few cuts. The programmed cutter can cut dozens to hundreds of thicknesses of cloth, and can cut out every piece of the garment in a single run. The usefulness of the laser for such cutting operations comes from the fact that the beam is highly collimated and can be further focused to a microscopic dot of extremely high energy density for cutting.

Fiber optic cables are a major mode of communication partly because multiple signals can be sent with high quality and low loss by light propagating along the fibers, 25 applications of laser. The light signals can be modulated with the information to be sent by either light emitting diodes or lasers. The lasers have significant advantages because they are more nearly monochromatic and this allows the pulse shape to be maintained better over long distances.

If a better pulse shape can be maintained, then the communication can be sent at higher rates without overlap of the pulses. Ohanian quotes a factor of 10 advantage for the laser modulators. Telephone fiber drivers may be solid state lasers the size of a grain of 25 applications of laser and consume a power of only half a milliwatt. Yet they can sent 50 million pulses per second into an attached telephone fiber and encode over simultaneous telephone conversations Ohanian.

Heat treatments for hardening or annealing have been long practiced in metallurgy. But lasers offer some new possibilities for selective heat treatments of metal parts. For example, lasers can provide localized heat treatments such as the hardening of the surfaces of automobile camshafts. These shafts are manufactured to high precision, 25 applications of laser, and if the entire camshaft is heat treated, some warping will inevitably occur.

But the working surfaces of the cams can be heated quickly with a carbon dioxide laser and hardened without appreciably affecting the remainder of the shaft, preserving the precision of manufacture. Supermarket scanners typically use helium-neon lasers to scan the universal barcodes to identify products.

The laser beam bounces off a rotating mirror and scans the code, sending a modulated beam to a light detector and then to a computer which has the product information stored. Semiconductor lasers can also be used for this purpose, 25 applications of laser.

Laser Applications Medical applications. Index Laser concepts Reference Boraiko. Medical Uses of Lasers The highly collimated beam of a laser can be further focused to a microscopic dot of extremely high energy density. Laser applications. Welding and Cutting The highly collimated beam of a laser can be further focused to a microscopic dot of extremely high energy density for welding and cutting.

Surveying and Ranging Helium-neon and semiconductor lasers have become standard parts of the field surveyor's equipment. Lasers in the Garment Industry Laser cutters are credited with keeping the U, 25 applications of laser.

Lasers in Communication Fiber optic cables are a major mode of communication partly because multiple signals can be sent with high quality and low loss by light propagating along the fibers.

Heat Treatment Heat treatments for hardening or annealing have been long practiced in metallurgy. Index Laser concepts Reference Garmire. Barcode Scanners Supermarket scanners typically use helium-neon lasers to scan the universal barcodes to identify products.

 

 

25 applications of laser

 

The laser has in most firearms applications been used as a tool to enhance the targeting of other weapon systems. For example, a laser sight is a small, usually visible-light laser placed on a handgun or a rifle and aligned to emit. May 27,  · Hi, Apart from the applications of LASERs mentioned by Aman, I want to highlight some properties of LASER with which it will be easy to relate (guess) the applications. 1. LASERs are the beam of light (very high frequency EM wave) which is monocro. About Laser Institute of America. Laser Institute of America (LIA), founded in , is the professional society for laser applications and safety. Our mission is to foster lasers, laser applications, and laser safety worldwide. LIA cultivates innovation, ingenuity and inspiration to promote the continued growth and safe use of laser applications.