For power of cource
helium is used for excitation of neon atoms in helium neon laser..
yes
Xenon and neon are used in lighting. Helium-3 is used in fusion. Helium-4 is used in balloons (to make them float in the air). Argon is used in fluorescent bulbs and tubes. Helium and argon are also sometimes used in chemical reactions (laser ablation, laser epitaxy, etc.) where a steady stream of gas is needed to carry products, but not react with them. Helium and neon are also used in lasers.
An example is the helium-neon laser.
It is a mixture of helium and neon gases.
HeNe laser is used to determine the concentration of a fluid , its application is widely used in the engineering field, esp by chemical engineers. In a CSTR reaction, I myself used the HeNe laser to determine the concentration of the effluent reactants with the help of a detector. with the use of absorbency equations and little bit of math u can determine the concentration of your sample/reactants...etc.
The ratio of helium to neon gas in a helium neon laser is typically around 10:1. Helium acts as the gas that carries most of the electrons, while neon is responsible for emitting the laser light at a specific wavelength. This ratio allows for efficient operation and the production of a stable laser beam.
Helium neon laser is better than ruby laser or most of the four level lasers are better than three level lasers due to the following reasons: The laser output is continuous in the case of helium-neon laser. But it is in the form of pulse in the ruby laser. Ruby laser requires high power pumping source, whereas Helium-neon laser requires low power pumping source like electric discharge. Efficiency of helium-neon laser is more than ruby laser. The defects due to crystalline imperfections are also present in the ruby laser. But it is not so in the helium-neon laser.
Depends on the purpose. But if you combine neon with helium, and obtain a helium-neon laser, you can see that it is much smaller than a xenon laser.
Typically, most pocket red laser pointers have wavelengths that range between 630nm and 680nm. A helium neon red laser pointer has a wavelength of 633nm.
The old laser printers used He-Ne laser , and the modern laser printers use infrared laser .
Gas,solid state,diode The first laser was a solid state laser. Solid state refers to any solid material like a glass rod. Diode lasers are very common because they are used to read compact disks and digital video disks in computers, CD players, and DVD players. Before diode lasers, the most common type of laser may have been the helium-neon laser, in which the active medium is a combination of the two gasses helium and neon.