Evolutionary Optimization of Three-Photon Absorption in Molecular Iodine

Author

Burbidge, Robert ; Rowland, Jem J. ; King, Ross D. ; Form, Nicholas T. ; Whitaker, Benjamin J.

Author_Institution

Dept. of Comput. Sci., Wales Univ., Aberystwyth

fYear

2007

fDate

March 1 2007-April 5 2007

Firstpage

96

Lastpage

100

Abstract

We report on the application of an evolutionary algorithm to a noisy, dynamic optimization problem in chemistry: the maximization of three-photon absorption in molecular iodine. An evolution strategy is used in real-time in a closed loop experiment to search the space of physically realizable phase-modulated femtosecond laser pulses. The probability of three-photon absorption is estimated by measuring UV fluorescence. With the evolutionary search it is possible to enhance the UV fluorescence by a factor of 3.4 compared to the most intense pulse.

Keywords

dynamic programming; evolutionary computation; iodine; light absorption; multiphoton processes; probability; UV fluorescence; evolutionary optimization; evolutionary search; molecular iodine; noisy dynamic optimization; phase-modulated femtosecond laser pulses; three-photon absorption maximization; three-photon absorption probability; Absorption; Chemistry; Evolutionary computation; Frequency; Optical control; Optical pulse shaping; Optical pulses; Pulse shaping methods; Shape control; Surface emitting lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence and Data Mining, 2007. CIDM 2007. IEEE Symposium on

Conference_Location

Honolulu, HI

Print_ISBN

1-4244-0705-2

Type

conf

DOI

10.1109/CIDM.2007.368858

Filename

4221282