In some other lasers, it would require pumping the laser at a very high continuous power level which would be impractical or destroy the laser by producing excessive heat. Diffuse reflection of a laser beam from a matte surface produces a speckle pattern with interesting properties. In 1963, Roy J. Glauber showed that coherent states are formed from combinations of photon number states, for which he was awarded the Nobel Prize in physics.
One of the main benefits of cleaning with a laser is that it does not leave too much waste due to the irradiation process. Most of the remaining waste is dust particles, which users can easily collect and remove. You can also have a lot of control over the beam, which means you can reach the desired depth. In addition, you can irradiate the entire surface layer of the material, or irradiate a thinner layer, such as the top coat of a paint, instead of the underlying primer. If simple sandblasting is used, it is difficult to obtain such a high level of control.
With no abrasives or secondary components involved, laser cleaning produces fewer types and lower quantities of waste products than any other cleaning process. Laser cleaning provides greater levels of control than are available for any competing process. The highly focusable and steerable laser beam can be directed precisely as desired, while sensitive and repeatable power settings deliver only the amount of energy that is called for. The range of IPG fiber lasers includes pulsed models specifically designed to produce optimum cleaning results with a minimum of heat generation. It is meticulously designed and manufactured with a compact mechanical structure and very easy to operate and move.
Townes reports that several eminent physicists—among them Niels Bohr, John von Neumann, and Llewellyn Thomas—argued the maser violated Heisenberg’s uncertainty principle and hence could not work. Others such as Isidor Rabi and Polykarp Kusch expected that it would be impractical and not worth the effort. Meanwhile, in the Soviet Union, Nikolay Basov and Aleksandr Prokhorov were independently working on the quantum oscillator and solved the problem of continuous-output systems by using more than two energy levels. These gain media could release stimulated emissions between an excited state and a lower excited state, not the ground state, facilitating the maintenance of a population inversion. In 1955, Prokhorov and Basov suggested optical pumping of a multi-level system as a method for obtaining the population inversion, later a main method of laser pumping.
As examples, in the hydrogen fluoride laser (2700–2900 nm) and the deuterium fluoride laser the reaction is the combination of hydrogen or deuterium gas with combustion products of ethylene in nitrogen trifluoride. They have been used for car headlamps on luxury cars, by using a blue laser and a phosphor to produce highly directional white light. Since the early 1990s, fiber lasers have established themselves in the telecom and medical procedure markets, as well as in a variety of advanced and scientific applications. Fiber lasers can be configured with a variety of spatial beam modes to fit virtually any application.
Fully customized to your conveyor system, the conveyor cleaning machine cleans parts that are stopped or moving on a conveyor. This machine also accurately manages all types of part positioning variations. Offering the highest throughput of all manually loaded laser machines, the rotary workstation uses a dual-position rotary table so you can simultaneously load and clean parts. With its gripping positions and laser beam configurations, the handheld laser cleaner is flexible enough to let you reach challenging areas while moving the laser with ease. Integrated fume management, guaranteed laser safety, local and remote support, and performance optimization based on your application. By selecting a new country/region, product may be unavailable and items in your shopping cart will be removed.
The term “laser” originated as an acronym for “light amplification by stimulated emission of radiation”. The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. This article draws on numerous fiber laser articles written by Bill Shiner, who was vice president of industrial sales at IPG for almost two decades and who recently passed away. The article has been updated with recent advancements in the field by several of Shiner’s colleagues at IPG, while maintaining the core of his contribution to the topic.
Direct spring-operated pressure relief valves for gas, liquid, steam and multi-phase applications. Crosby pressure relief valves maintain the industry’s most extensive and capable flow facilities for testing in air, steam, and water. New technology to debut next month at NPE warns when preventive maintenance is needed, before equipment failure disrupts production. Material entering the elbow is gently deflected around the bend by the ball of rotating material without impacting or abrading the elbow wall. Because some material is continuously replenishing the rotating ball of pellets, the process is continuous, and the chamber evacuates fully along with the final portion of material being conveyed.