Study On Character About Delivering In Hollow Waveguide

With the development of IR laser technology, many kinds of hollow waveguide were made to deliver IR light. Those kinds of waveguide have got the ability that could be used to deliver high energy IR light with low attenuation. But these attenuation phenomena can't be explained by current theory about character in hollow waveguide. So that it is impossible to look for some new theory to explain the character about energy deliver in hollow waveguide. In this paper, we concentrate on new theory about energy deliver in hollow waveguide.Firstly analyses of the energy delivering character are given by compared current theory about character in hollow waveguide to the result got by experiment. Through this way, we got the causation why current theory forecast mistake result.Secondly we get the electromagnetic distributions in hollow waveguide by doing some operations on Maxwell formula. We also get the characteristic formula in hollow waveguide. The characteristic parameter about hollow waveguide is gained by using numerical method and the energy distribution model is made by using vector.Thirdly we discuss the Z-direction energy distribution in hollow waveguide and reflecting character on interface. By giving analyses of this, we compare the normal ATR hollow waveguide to the medium layer ATR hollow waveguide and get the reason why the medium layer ATR (Attenuation total reflectance) hollow waveguide have an advanced delivering character.Finally a new theory about energy delivering in hollow waveguide is given. In this theory the input attenuation in both straight and bent hollow waveguide. We also use numerical method to solve this theory and the result got by this theory is given too.