Control of the photodissociation of CsCl

Experimental Coherent Laser Control of Physicochemical Processes

“…Soon after implementing the pulse shaping methodology, Gerber's group applied it to control the branching of a chemical reaction in a complex polyatomic molecule . Experiments using pulse shapers controlled by GAs have been applied for optimization of laser-induced fluorescence, ,− stimulated Raman emission, ,− high-harmonic generation, ,− ultrafast semiconductor switching, pulse propagation through optical fibers, , and control of molecular dissociation and selective bond breaking. ,− Experiments aimed at control of molecular excitation (not reaction), based on a shaped laser pulse controlled by a GA, are referenced in Table . ,,,− ,− …”

“…These approaches do not involve coherent control; however, they are mentioned because it is possible to cause bond-selective excitation by multiphoton-excitation processes, where the total energy is equivalent to spectroscopic transitions, known to lead to selective photochemistry. In Table , we summarize experimental research where laser control of chemical reactions has been demonstrated. ,,,,− ,− In this table, we begin with experiments aimed at bond-selective excitation, and we conclude with some of the more recent experiments with shaped laser pulses optimized using GAs.…”

“…386 Experiments using pulse shapers controlled by GAs have been applied for optimization of laser-induced fluorescence, 384,[387][388][389][390] stimulated Raman emission, 26,[391][392][393][394] high-harmonic generation, 392,[395][396][397][398] ultrafast semiconductor switching, 399 pulse propagation through optical fibers, 400,401 and control of molecular dissociation and selective bond breaking. 386,[402][403][404][405][406][407][408][409][410][411] Experiments aimed at control of molecular excitation (not reaction), based on a shaped laser pulse controlled by a GA, are referenced in Table 5. 26,365,384,[387][388][389][390][391][392][393][394][412][413][414][4...…”

Coherent Vibrations of Adsorbates Induced by Femtosecond Laser Excitation

“…Since these motions are coherent in nature, we can manipulate them with sophisticated tailored laser pulses. Since the pioneering work on coherent control of phonons in organic solids by Nelson and co-workers, , various schemes have been proposed and tested: chirped pulse excitation, − feedback-controlled pulse shaping, ,− and others. Although there have been several theoretical proposals on the coherent control of surface dynamics, − experimental attempts to implement them have been scarce.…”

Stark Control of a Chiral Fluoroethylene Derivative

“…In addition to single parameter control, feedback learning algorithms can be used to search the best laser parameters that prepare specific products based on fitness information . Since its first application, this method, also called close-loop control, has been used in plenty of cases, see, for example, refs − .…”