Future material and transduction improvements lasing sensors

Future material and transduction improvements - lasing sensors 

The potential for additional sensitivity is clear upon analysis of the effect of FQ on excited state lifetime (r), which is merely a representation of all the excited state deactivation processes, as shown in the following equation  

is the rate constant for radiative decay (fluorescence), while k r is the combined rate constant for aU non-radiative decay processes, is virtually constant and is an inherent property of the material in question, and for this material is significantly greater than k r, given the high fluorescence efficiency. When a fluorescence quencher, such as TNT, is introduced, km increases because an additional efficient non-radiative pathway now exists. This, via Eq. (4), makes r smaller. 

Four broad objectives need to be considered in the scientific investigation of bombing scenes  

Aspects of Explosives Detection M. Marshall andJ.C. Oxley (Editors) 

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