Lasers Essay

702 words - 3 pages

LASERS Gordon Gould is the inventor of the Laser. He came up with the name LASER (Light Amplification by Stimulated Emission of Radiation). He invented the laser in 1957 but failed to get a patent. He had everything written in his notebooks and had it notarized, thinking it would be safe until he came up with a working model. He spent many years fighting in court to get credit for his work.Gould was born in New York City, on July 17, 1920. He graduated with a degree in physics. He worked for the United States on the Manhattan Project, building an Atomic bomb during World War ll.At the same time that Gould was working on the stimulated emission of radiation at Columbia University in New York , another man, Charles Townes, was also working on it. But it was Gould who thought of adding an optical resonator to a tube that has mirrored ends. This was the way to make amplified light. Another scientist Theodore Maiman was the first to demonstrate a laser. He applied for the patent and got it even though it was Gordon Gould's idea. Gould didn't think he could get a patent until he had a working model so he took his notebook with all his ideas about the laser and had it notorized. He wanted to get credit for the laser and have the patent for it so with the help of an investor, who paid legal fees, Gordon Gould was finally able to win his legal cases in 1977 and given ownership of the laser patent. In 1978 he was named Inventor of the Year.Lasers are many different sizes. They can be as large as a football field or as small as a grain of salt.The laser has three main parts.1. An energy source- Lasers often use electricity, another laser or a flash lamp as its supply for the energy source 2. An active medium- This is a material that can be made to create laser light. Gases, liquids or solids can be used. The active medium absorbs...

Find Another Essay On Lasers

Lasers: death rays or miracle breakthroughs?

645 words - 3 pages Lasers can now improve health and personal appearance. They can erase wrinkles, scars, and smooth fine lines around people's faces. They can also remove discolorations on skin, broken blood vessels, and unwanted hair. Mild or moderate acne can also be treated by lasers. One of the most common uses is laser eye surgery. The lasers sculpt the surface of the cornea and this treatment allows people to see without glasses. Barron's magazine says that

Refracting Lasers?-i wrote this for 8th grade science fair. its about lasers basically

1610 words - 6 pages Refracting Lasers?Lasers are very important in our world today; but not too long ago, we did not have them! The main reason they did not think of them before the 1900's was because scientists did not know about stimulated emission. But in the early 1900's Albert Einstein was the first to describe this process. The next major breakthrough in lasers was when Charles H. Townes created a population inversion, which is needed to create stimulated

The Impact of the Lasers Technology on Society

972 words - 4 pages Introduction:The name LASER is an acronym for Light Amplification by the Stimulated Emission of Radiation. In 1917, Albert Einstein first theorized about the process which makes lasers possible called "Stimulated Emission." In this paper, we can view the impact of the lasers technology on society from four perspectives: the strength, the weakness, the opportunity and the threat of Lasers Applications. To sum up, we will focus on the future of

Lidar System

553 words - 3 pages LIDAR, stands for Light Detection And Ranging, is an active optical remote sensing instrument. It is an innovative technique that uses laser for probing the planetary atmosphere [1, 2, and 3]. Atmospheric LIDARs use narrow pulsed lasers. Flash-lamp pumping is generally employed in generation of Q-switched lasers. Flash-lamp pumped (FLP) systems produce lasers at low repetition rate with high pulse energies. Several problems such as limited life

Analysis of Laser Technology

1746 words - 7 pages relax back down to their ground level they emit photons, which is part of a chain reaction that may cause other atoms to go through the same energy transitions resulting in light that becomes so intense that part of it exits through one of the mirrors as a very strong beam, known as a laser. The practical uses of lasers are enormous. One of there biggest uses is that they have been used to read and write information on compact discs. Their

The Laser

907 words - 4 pages are many types of lasers which include solid state lasers, which have a solid media. The most common of this is a rod of ruby crystals and neodymium-doped glasses and crystals. These offer the highest energy output of all lasers. Another laser type is the gas laser, which can be made of a pure gas or a mixture of gases or even a vaporized metal in a quartz tube. The helium- neon laser has hight frequency stability and Carbon Dioxide lasers are

Laser Crowd Scanning

1084 words - 5 pages Laser Crowd Scanning is and amazing visual effect at most live entertainment shows, especially concerts. But, there is a bunch of safety factors that go into play before the lasers can or may be used. Some of these safety factors include, knowing where the free space is amongst the venue, understanding the angle of the beams and knowing that the safe zones aren’t amongst the areas where a person in the crowd could be in line with the beams

Laser, What its all about and made of

909 words - 4 pages aluminum casing. This was cooled by a forced airsupply.This design was thought to be good enough but later an opticalresonator was added to redirect light in the right direction which increasedlaser performance. The optical resonator was a mirror at one end of the laserto redirect light back into the laser and a partially reflective laser which letssome coherent light through.Today there are many types of lasers which include solid state lasers

Bartes War

906 words - 4 pages lasers extra power so it can take out the Barte’s civilization, homes, and weapons. Top military leader of the Thailians, Tazitan, figured out a way to defend against the attacks of the Barte’s deformed thumbs and J’s shoe lasers. Even though it’s simple, a pair of shears to cut off the thumbs during close combat would be the best way to make hand-to-hand combat much easier. As for the foot lasers, the Thailian spaceships are made of iron mixed

This is a A+ essay on Lazers

1119 words - 4 pages States mounted a "specially prepared a rod of ruby inside a powerful flash lamp" (Hecht) similar to the type used for high-speed photography. The laser age was born. Within a very short time, in addition to many more solid state materials, laser action was demonstrated in liquids, semiconductor crystals, and other forms. Although there are many types of lasers, all have certain essential features. In a laser, the "lasing medium is pumped to get

The Mysterious Night

609 words - 2 pages the cliff, and then sends ongoing messages to other land, the sky. The lights team has its bases located near by the edge of roads. They, too, has their role in this world. They shoot colorful lasers to the cascade to guide the soldiers to their battle place. But at the same time, they, the lasers, enhance the beauty of waterfalls by shooting blue, green, and pink lasers. Buildings near by waterfalls looks like a castle, base, because enormous

Similar Essays

Lasers Essay

777 words - 3 pages yet it is rather on a time scale characteristic of the states involved. That is called the spontaneous lifetime. In stimulated emission the frequency of the light is the same as the frequency of the light that stimulated it.Carbon-monoxide, color center, excimer, free-electron, gas-dynamic, helium-cadmium, hydrogen-fluoride, deuterium-fluoride, iodine, Raman spin-flip, and rare-gas halide lasers are just a few of the many types of lasers there are

The Uses Of Lasers And About Lasers

774 words - 3 pages The LaserThe laser is one of the most advanced tools we have in ourcivilization. Lasers are powerful enough to cut through a thick piece ofsteel, yet can be used in medical surgery. Lasers are used in the army,not for guns, for range finding and a whole lot more.Most people don't know where the idea of the laser came from. Theidea for the laser came from a machine called a maser. The maser was a toolthat was able to strengthen, or amplify radio

Lasers In Surgery Essay

1931 words - 8 pages Lasers in Surgery         Abstract: The laser is gaining increasing popularity in the medical field because of its broad application, efficiency, and improvement in overall ease of the procedures in which it is used.. The laser can treat an enormous range of ailments. The chronic nighttime snorer can give those around him relief by a simple procedure with the laser. In dermatology, the laser can be used for removing moles, tattoos

Lasers Of The 60's Essay

1274 words - 5 pages Lasers of the 60'sWhat is Hotter than the sun, finer than a needle, that pierces diamonds, repairs eyes and kills cancers. Give up it is a laser. Although in sci-fi movies they are used as weapons they are used for good. My research essay is on lasers. Lasers are important because lasers help in the medical field. It helps with therapy. It also helps with hair removal. According to Townes, Basov and Prokhorov shared the prize for