Experimental Evidence of Sensitivity of the High Harmonic Generation to Hydrogen Bonding

Sankhabrata Chandra 1 Irfana Ansari 2 Gopal Dixit 2 Franck Lepine 3 Atanu Bhattacharya 1
1 IISc Bangalore - Indian Institute of Science [Bangalore]
2 IIT Bombay - Indian Institute of Technology Bombay
3 ILM - Institut Lumière Matière [Villeurbanne]
Abstract : The influence of hydrogen bonding and the associated attosecond hole delocalization on the high-order harmonic generation (HHG) process is investigated with the help of hydrogen-bonded binary mixture of acetonitrile and chloroform solvent vapors. We observe a strong enhancement of the HH yield compared to the results obtained with pure samples. We propose that the observed increase of HHG efficiency is due to the presence of hydrogen-bonded binary mixture. Numerical simulations show evidence of the attosecond hole delocalization in the hydrogen-bonded complex of acetonitrile and chloroform. This attosecond hole delocalization contributes to the enhancement of the harmonic yield in the hydrogen-bonded complex. To the best of our knowledge, this is the first report on the sensitivity of the high harmonic generation process to the hydrogen bonding.
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https://hal-univ-lyon1.archives-ouvertes.fr/hal-02364841
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Submitted on : Friday, November 15, 2019 - 10:44:00 AM
Last modification on : Tuesday, November 19, 2019 - 2:37:27 AM

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Sankhabrata Chandra, Irfana Ansari, Gopal Dixit, Franck Lepine, Atanu Bhattacharya. Experimental Evidence of Sensitivity of the High Harmonic Generation to Hydrogen Bonding. Journal of Physical Chemistry A, American Chemical Society, 2019, 123 (24), pp.5144-5149. ⟨10.1021/acs.jpca.9b03295⟩. ⟨hal-02364841⟩

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