An investigation of harmonic generation in liquid media with a mid-infrared laser | Zendy

Anthony D. DiChiara | Zendy; Emily Sistrunk | Zendy; Terry A. Miller | Zendy; Pierre Agostini | Zendy; Louis F. DiMauro | Zendy

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An investigation of harmonic generation in liquid media with a mid-infrared laser

Author(s) -

Anthony D. DiChiara,

Emily Sistrunk,

Terry A. Miller,

Pierre Agostini,

Louis F. DiMauro

Publication year - 2009

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.17.020959

Subject(s) - optics , laser , high harmonic generation , harmonic , infrared , wavelength , absorption (acoustics) , physics , materials science , second harmonic generation , intensity (physics) , pulse duration , phase (matter) , phase matching , atomic physics , quantum mechanics

We present a harmonic generation experiment using liquid H(2)O and D(2)O interrogated by a mid-infrared, 3.66 mum, laser at a maximum intensity of 8x10(13) W/cm(2). The unique aspects of the experiment include the long wavelength and short (9 cycle-110 fs) pulse duration of the laser as well as the near-resonant excitation of the H(2)O and D(2)O vibrational modes. We observe up to the 13th harmonic order in H(2)O and intensity scaling is consistent with a direct perturbative process up to the 9th harmonic order. Phase matching and resonant absorption are unable to account for the observed differences in harmonic yields between samples.

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