AI Article Synopsis
- The study introduces a theory about bicircular high-order-harmonic generation in molecules with N-fold rotational symmetry.
- By using a rotating reference frame, the researchers predict the full spectrum of high-order harmonics for various driving frequency ratios.
- The results demonstrate that the unique rotational symmetries of molecules can be identified from the harmonic signals generated in response to strong bicircular fields.
Article Abstract
We present a general theory of bicircular high-order-harmonic generation from N-fold rotationally symmetric molecules. Using a rotating frame of reference we predict the complete structure of the high-order-harmonic spectra for arbitrary driving frequency ratios and show how molecular symmetries can be directly identified from the harmonic signal. Our findings reveal that a characteristic fingerprint of rotational molecular symmetries can be universally observed in the ultrafast response of molecules to strong bicircular fields.
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| http://dx.doi.org/10.1103/PhysRevLett.117.133902 | DOI Listing |
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