Thermal modeling of short pulse collimated radiation in a participating medium

TL;DRAbstract

In most traditional engineering applications, such as in the thermal analysis of boilers,furnaces, internal combustion engines, etc., as temporal variations in thermal quantities of interest are much slower than the time scale associated with the propagation of radiation,the transient term from the radiative transfer equation is usually neglected.The rapid progress in the field of short pulse laser in a participating medium has lead to some interesting applications such as materials processing, optical tomography, remote sensing,laser micro-surgery etc.The temporal radiative signals from a medium irradiated by short pulse lasers offer more useful information which reflects the internal structure and properties of the medium than that by the continuous light sources.The time scales of such applications are usually in the order of 10-12 to 10-15 seconds. Therefore, the consideration of the transient term in the radiation transport equation is necessary.To understand the physical phenomen

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