Construction And Working Of Co2 Laser Ppt

Co2 laser engraved walnut plaques were a popular item in the 1970s.

Construction and working of co2 laser ppt.

In co 2 molecular gas laser transition takes place between the vibrational states of carbon dioxide molecules. Let us first understand the process of absorption. It was the first molecular gas laser developed by indian born american scientist prof c k n pillai. The laser radiation of a wavelength of 6943a0 and laser emission is pulsed one.

Hello guys today i am going to explain you about the construction working and principle of co2 laser in the most easiest manner so that it will long last in your mind and at the same time help. When the flash lamp light will be flashed on ruby rod the chromium ions excited to higher energy states. The filling gas within the discharge tube consists of around 10 20 carbon dioxide co 2 around 10 20 nitrogen n 2 a few percent hydrogen h 2 and or xenon xe usually only used in a sealed tube and the remainder of the. After staying for up to 10 8 second ions get transmitted to the metastable state.

In those days co2 lasers were developed for defense but it was soon realized that enough of the wavelength is absorbed in the atmosphere to cause severe problems in pointing and focusing the beam at long distances. Helium neon laser usually called a he ne laser is a type of gas laser in which a mixture of helium and neon gas is used as gain medium. Working of helium neon laser. Co2 lasers are no longer considered in this role.

Consider 2 energy levels e 1 and e 2. Co2 laser was the first molecular gas laser developed by indian born american scientist prof c k n pillai it is a four level laser and it operates at 10 6 μm in the far ir region. It emits deep red light of wavelength 694 3 nm. Its construction is simple and the output of this laser is continuous.

Co2 molecular gas laser. For simplicity let us assume e 1 is the lower energy level and e 2 is the higher energy level. Co2 molecular gas laser. Reflect most part of the light but allows some part of the light to produce the laser beam.

It is a very efficient laser. Ruby laser is one of the few solid state lasers that produce visible light. Working of laser diode. A ruby laser consists of three important elements.

Absorption spontaneous emission and stimulated emission. Construction and working of he ne laser 15. Construction of ruby laser. This video lecture will explain the construction of carbon dioxide laser.