Quantum coherent control of the vibrational dynamics of a polyatomic molecule using adaptive feedback control of a femtosecond laser

Pramana

E Ronander³  A M Smit¹  L R Botha1¹  H J Strydom³  N Botha¹  L E De Clercq² 

[1] CSIR, National Laser Centre, Meiring Naude Road, Gauteng, Pretoria, RSA$$;Institute of Quantum Electronics, ETH Zürich, Schafmattstrasse 16, 8093 Zürich, Switzerland$$;Klydon, Meiring Naude Road, Gauteng, Pretoria, RSA$$

关键词: Molecules;    femtosecond lasers;    quantum coherent control;    adaptive feedback control;    molecular vibrational modes;    spatial light modulator;    genetic algorithm;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

We simulate adaptive feedback control to coherently shape a femtosecond infrared laser pulse by means of a 4f-spatial light modulator in order to selectively excite the rovibrational modes of a polyatomic molecule. We preferentially populate an arbitrarily chosen upper rovibrational level by only employing these tailored temporally shaped pulses. A second laser would then allow for mode selective chemistry to interact selectively with the excited population. Alternatively the excited molecules enhanced reactivity could be exploited for selective chemistry.

【 授权许可】

Unknown