Design of optimal laser pulses to control molecular rovibrational excitation in a heteronuclear diatomic molecule#

Electric-field-induced adiabaticity in the rovibrational motion of heteronuclear diatomic molecules

R. González-Férez* and P. Schmelcher Departamento de Física Moderna and Instituto “Carlos I” de Física Teórica y Computacional, Universidad de Granada, E-18071 Granada, Spain Theoretische Chemie, Physikalisch-Chemisches Institut, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany Physikalisches Institut, Universität Heidelberg, Philosophenweg 12, D-69120 Heidelberg, Germany sReceived 26 Novem...

Design of Optimal Laser Fields to Control Molecular Vibrational Excitations

Optimal control design of constant amplitude phase-modulated pulses: application to calibration-free broadband excitation.

An optimal control algorithm for generating purely phase-modulated pulses is derived. The methodology is applied to obtain broadband excitation with unprecedented tolerance to RF inhomogeneity. Design criteria were transformation of Iz-->Ix over resonance offsets of +/-25 kHz for constant RF amplitude anywhere in the range 10-20 kHz, with a pulse length of 1 ms. Simulations transform Iz to grea...

Molecular dynamics of liquid benzene via femtosecond pulses laser excitation

2014 We analyse the complex response of liquid benzene to the applied 45 fs FHWM optical pulses by using a polarization sensitive transient grating technique. An electronic contribution to the nonlinear polarization is distinguished from three other processes which, we demonstrate, originate in polarizability modifications associated to molecular motions. Additionally, we present evidence that ...

Optimal control with ultrashort laser pulses

Coherent control is a new fascinating field subsuming theoretical and experimental efforts aiming at controlling quantum phenomena using the interaction with tailored laser fields. Building on the coherence property a quantum mechanical system is laser-driven into a specific quantum mechanical state or along a reaction pathway to a desired product. The needed pulse shape for a specific aim can ...