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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Two-center interference in high-order harmonic generation from heteronuclear diatomic molecules
Xiaosong Zhu1, Qingbin Zhang, Weiyi Hong
1Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China.
Optics Express
|January 26, 2011
Summary
Investigating two-center interference in heteronuclear diatomic molecules (HeDM) reveals a shift in harmonic spectra. This finding offers potential for analyzing molecular asymmetry and orbital properties.
Area of Science:
- Quantum physics
- Molecular spectroscopy
- Attosecond science
Background:
- Two-center interference is a fundamental phenomenon in molecular quantum dynamics.
- High-order harmonic generation (HHG) spectra provide insights into electronic and nuclear motion.
- Heteronuclear diatomic molecules (HeDM) present unique interference patterns compared to homonuclear systems.
Purpose of the Study:
- To investigate two-center interference in heteronuclear diatomic molecules (HeDM).
- To analyze the influence of molecular asymmetry on high-order harmonic spectra.
- To explore potential applications in characterizing molecular properties and dynamics.
Main Methods:
- Theoretical investigation of two-center interference in HeDM.
- Analysis of high-order harmonic spectra, focusing on interference minima.
- Phase analysis to interpret spectral shifts and molecular information.
Main Results:
- The interference minimum in the HHG spectrum of HeDM shifts to lower harmonic orders compared to homonuclear molecules.
- Phase analysis confirms the shift is due to destructive interference.
- The HHG spectrum of HeDM contains information on internuclear separation and individual atomic properties.
Conclusions:
- The spectral shift in HeDM provides a sensitive probe of molecular asymmetry.
- HHG spectra can be used to determine the linear combination of atomic orbitals (LCAO) for the highest occupied molecular orbital (HOMO).
- This method offers a pathway to monitor the dynamic evolution of the HOMO in real-time molecular processes.
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