Coherent control of chemical processes

Experimentally, the simplest and most effective method of control is to shape the temporal and frequency profile of the femtosecond laser pulse. Technology that allows us to produce tailored femtosecond laser pulses is now available, and 

Laser Chemistry Spectroscopy, Dynamics and Applications Helmut H. Telle, Angel Gonzalez Urena Robert J. Donovan 2007 John Wiley Sons, Ltd ISBN 978-0-471-48570-4 (HB) ISBN 978-0-471-48571-1 (PB) 

CH19 COHERENT CONTROL AND THE FUTURE OF ULTRA-SHORT PROBING 

All of this can be controlled using computer software, which should also include an adaptive learning algorithm, capable of computing the next step towards producing the optimum product yield and then tailoring the laser pulse in an appropriate way (this is termed adaptive closed-loop control). After each laser pulse, 

the femtosecond laser is pulsed, the target molecule is excited, the products are probed and the output from the detector fed to the computer, where it is compared with the user-defined objectives  

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