How do animation lasers work

Next is a simple switch which completes the circuit when depressed, above that is the button and then the batteries, all fairly self explanatory. When we zoom in towards the Laser diode with most of the other Laser components removed it looks like this while on its circuit-board —. How Lasers Work Page 2. Powered by WordPress and the Graphene Theme. Follow us On Youtube. Micro Stirling Engine. Tesla Turbine Kit. Build A Micro Wind Turbine. Image credit: NASA. A laser is different.

Lasers do not occur in nature. However, we have figured ways to artificially create this special type of light. Lasers produce a narrow beam of light in which all of the light waves have very similar wavelengths.

This is why laser beams are very narrow, very bright, and can be focused into a very tiny spot. This animation is a representation of in phase laser light waves. Because laser light stays focused and does not spread out much like a flashlight would , laser beams can travel very long distances. They can also concentrate a lot of energy on a very small area. This animation shows how a laser can focus all of its light into one small point.

Credit: NASA. Lasers have many uses. They are used in precision tools and can cut through diamonds or thick metal.

They can also be designed to help in delicate surgeries. Lasers are used for recording and retrieving information. In a population inversion, these are more likely to strike other excited atoms, causing a phemonenon called stimulated emission. When this occurs, the atom emits two photos that have the same phase, polarisation, frequency and direction of travel.

As this happens more frequently, more of the photons become the same as each other, a process called optical amplification. More pumping increases the number of these photons yet further, and some escape from the optical cavity through the partially transparent mirror.

These photons form the laser beam, and each photon has the same phase, frequency and polarisation. The word laser originated as an acronym for light amplification by stimulated emission of radiation.

See clip K for a detailed animation of stimulated emission. By sharing this link, I acknowledge that I have read and understand the Terms and Conditions. Sie kommen aus Deutschland? This video is not available for purchase in your country. Please contact your Account Manager if you have any query.