A Femtosecond Nano Laser is Called a Femtosecond Nano Laser When The Separation interval of Laser Waves is ۵ Femtoseconds

Note: A femtosecond nano laser is called a femtosecond nano laser when the separation interval of laser waves is 5 femtoseconds. Note that each femtosecond (fs) is equal to 10-15 seconds. Some fluid lasers are examples of these lasers.

A femtosecond nanolaser  is a device that emits light waves in the form of very narrow parallel beams that have a specific wavelength.  Gas nanolasers that  use   electron impact  to produce excited ions, which are active nanolaser devices.  The main part of ion nano lasers are plasma tubes.  The current flow in the tube can be more than 10 nm. Gas nanolasers all share a pump source and  the gas species are excited either directly, by collisions with electrons, or indirectly, by collisions with other gases. Femtosecond nanolasers  cover the entire optical spectrum from ultraviolet to infrared.  However, the spectrum is not covered continuously.  Femtosecond nanolasers  emit very narrow spectral lines.  The most common gas nano lasers (from UV to far ultraviolet).

Among the different types of  femtosecond nano lasers , carbon dioxide nano lasers, having the highest average power among gas lasers, are widely used in various cases due to this wide application of high efficiency. (nanolaser) is a laser that on the scale of nano  dimensions,  these tiny lasers can be adjusted quickly and together with the  small  footprint,  make  them ideal candidates for optical computing on a chip .  The intense optical fields of such a laser also  enable the amplification effect in nonlinear optics  or surface-enhanced Raman scattering  ,  thus paving the way for integrated nanophotonic circuits , generally nanolaser  enhancement  or  amplification.  It is a process in which the environment  transfers part of its energy to the emitted electromagnetic radiation  , and as a result, the optical power increases.  This is the basic principle of all lasers .  Quantitatively,  gain is  a measure of the ability of a laser medium  to increase optical power.

Conclusion :

Femtosecond nanolaser When the separation interval of laser waves is 5 femtoseconds, it is called a femtosecond nanolaser. Note that each femtosecond (fs) is equal to 10-15 seconds. Some fluid lasers are examples of these lasers.