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In 1917, the great person Albert Einstein has initiated a simple thought of laying a foundation purely meant for the purpose of creating laser. Later during 1954 two more engineers have shed their effort in finding something called as maser that stood very close to laser but still took roughly four years to create the true laser. Only in 1960, a powerful 3 energy level laser has been brought into light by Theodore Maiman after which the 4 energy level laser has been invented. We have several laser types that can be found to be effectively used in various industries of which gas, chemical, solid-state, fiber, excimer and photonic crystal lasers are all very famous.Get a glimpse of how the laser worksThough the above listed laser types are all used in various applications due to its varied set of operating principles yet all of them would have a fundamental theory on which they are formed. They all will have a particular set of components that would work well when combined together. The various components are the gain medium which is either a solid or else a liquid or gas. The energy produced out of this medium will undergo pumping mechanism and then be passed through high reflector and then to output coupler that will ultimately formed into a beam. This beam is intended to operate in its own defined function in various industries but with adjusted intensity. This adjustment can be brought in using the color light interaction with electrons in a predefined form of knocking up from the inner to the outer layer and then dropped back to inner layer which is when the energy is converted into light formed into a beam. All this process is tuned to produce a beam that is desired for working in different applications.Different laser Use areasYes, when we said beam intensity adjusted it is for various industries in which different energy level in the form of light is required. For this purpose the medium that is used for generating light is changed due to which people have categorized the lasers as medical related, science, research, cosmetics, construction, commercial, military and several others. The vast set of expert brains working on the improvement in continuity of output along with the increased lifetime of laser will find many more areas to put its technology into use of which the most common and widely seen use case is the CD and DVDs operated by common man without having any awareness of the technology on which these products are built on. Different laser use areas requires different laser technologies and components such as optical filters, optical prisms, precision windows and much more.Powerful weapons from LaserWhen one says weapons they are likely to be used in the situations of emergency and hence the weapons that are made from laser should never fail letting the soldiers into trouble in the war ground. One could remember the past where in 212 B.C the soldiers were ordered by the commander of Greek to set fire to the targeted enemies directly from the sea area by focusing sunlight which contains radiation by reflecting through the mirrors that did a wonderful job at that time. So what about present day technology of laser beams that are generated in almost the same way. After having inspired from this historical event, engineers in defense department has taken inspiration from one more invention done in the laser technology which resulted in the generation of 1kW and then started putting their efforts in finding powerful lasers to support weapon applications. Finally the engineers came up with 100kW in 1968 and then with more power of 250kW in 1975 thus giving more scope of applying laser technology for building most powerful weapons. After these two inventions have made their entry of laser in defense field there are many weapons drawn out of laser technology of which the advanced tactical laser, the HF laser are a few of them and tested thoroughly by the engineers in the sea area along with testing the weapons in the space. The reality today was never expected in the past which is really a sign of great achievement of laser technology in the military area.Increased usage of laser technology in medicineJust not in military area, one could also find extensive use of laser even in the medical science for treating several of the health problems which people are suffering from. In the ancient days there are examples of people believing in sunlight therapy especially found in the areas like Greece and Egypt. Now, in the 21st century one could easily identify the several uses of laser technology in performing surgical operations. One could think about the removal of unwanted hair or unwanted tattoos that are being pulled out of the human skin. People are trying to remove the unwanted birthmarks along with skin melanomas by applying laser technology. Also one could find the laser to be used in real world useful scenarios like eye surgery and cancer detection and treatments where the results are found to be much improved since laser technology has been put to work. You could find a bunch of laser types working in the health industry like fiber, dye, gas, diode and excimer each of which might have a different feature that will make them perfectly suitable for medical industry. Apart from dermatology, ophthalmology one could also find the application of laser technology in oncology, dentistry, urology, microscopy and neurosurgery etc.Few more applications of laserApart from the above discussed areas of laser applications, one could also find it to be used in industries like the construction, production plants where they are used for cutting, drilling, surface treatment of metals and welding of the same metals. You could also find them widely used in other sectors in the coming future thus resulting in ever increasing demand for this wonderful technology.

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