However, the first Laser system was only built in 1960 by Theodore Maiman . Maiman’s system consisted of an energy source that pumped atoms in a ruby crystal to higher energy levels. At a certain energy level, the excited atoms started emitting photons. These newly created photons stimulated the emission of other identical photons in a continuous process that amplified the light intensity. To continue the stimulation process and light amplification, Maiman placed a perfect reflecting silver mirror on one end of the apparatus and a semi-reflecting silver mirror on the other end.
lasers The Wonderful World of Lasers Laser stands for Light Amplification by the Stimulated Emission of Radiation. Lasers work by producing an intense beam of bright light that travels in one direction. The laser has the unique ability to produce one specific color or wavelength of light, which can be varied in its intensity and pulse duration. The newest laser systems have become remarkably precise and selective, allowing treatment results and safety levels not previously available. All lasers contain an energized substance that can increase the intensity of light that passes through it.
But the first laser was constructed in 1960 by American physicist T.H. Maiman and it is still one of the most powerful lasers available. This laser used a ruby rod for its active medium, which is its way of producing light. Ali Javan then created the first gas laser later in 1960. Three separate teams of American scientists operated the first semiconductor laser in 1962.
Lasers have changed immensely since they were first invented. Before the laser was invented, Charles Townes developed the maser in 1954. The maser has basically the same principles as the laser, but it involves microwaves instead of light. The maser lead Theodore Maximan to assemble the first working laser in 1960; he did this by applying the masers qualities to light. This first solid-state laser was a ruby crystal laser.
Laser surgery is a pioneering field of medicine. The laser is used for some type of procedure in practically every specialty field. Doctors are researching the laser for even more increased use because it provides a noninvasive, quicker, and less painful approach to many procedures. In the future, the laser will become an increasingly common place medical tool. Bibliography "Laser Surgery Can Stop the Noise."
How has the use of lasers been beneficial to medicine? The term Laser is an acronym that of Light Amplification by Simulated Emission of Electromagnetic Radiation. These lasers have many applications in many different industries around the world. However, with new uses constantly being developed lasers are proving to be extremely beneficial to the world of medicine in particular. From laser imaging and disease diagnosis to curing and treating illnesses that were not curable previously.
When first discovered, lasers were thought to be the ‘cure all’ for modern scientific problems. Although many limitations have been realized, lasers are slowly improving many different aspects of our lives. From eye surgery to industrial precision cutting and fabrication to medical marvels like tattoo removal, surgery, and even destroying isolated cancer cells, lasers continue to be a behind-the-scenes tool for improving our lives. Many people have heard of the lasers, but few know that the term is actually an acronym for Light Amplification by the Stimulated Emission of Radiation. Even still, fewer could explain how a laser works.
1. Introduction LASER is an abbreviation to Light Amplification by Simulated Emission of Radiation. Laser emits light at a particular wavelength by simulating atoms or molecules. It produces a narrow beam of radiation which is limited to ultraviolet, infrared and visible wavelength ranges only.  The use of laser in industrial applications has been rapidly increasing as an alternate to the traditional or conventional manufacturing processes.
The idea for the laser came from a machine called a maser. The maser was a tool that was able to strengthen, or amplify radio and light waves. The first laser was made in California in 1960. It was built by Theodore Maiman along with a group of American scientists. The material they used for a concentrator was a man- made ruby.
This treatment utilises gamma rays (photon beams). A photon is a bundle of energy that can vary based on the type. In this case gamma is the highest giving a large, powerful, precise treatment (National Cancer Institute, 2014). Another type of type of radiation therapy used gamma rays also although instead of leaving radiation behind like the previous treatment it gets rid of most of the energy at the end of their path and less along the way, helping living tissue surrounding the tumour be less effected and treatment to be given in one session (American Cancer Society, 2013). When the whole brain is treated using radiotherapy many side effects can come about.