Exploring laser-driven quantum phenomena from a time-frequency analysis perspective: a comprehensive study.

Published

Journal Article

Time-frequency (TF) analysis is a powerful tool for exploring ultrafast dynamics in atoms and molecules. While some TF methods have demonstrated their usefulness and potential in several quantum systems, a systematic comparison among them is still lacking. To this end, we compare a series of classical and contemporary TF methods by taking hydrogen atom in a strong laser field as a benchmark. In addition, several TF methods such as Cohen class distribution other than the Wigner-Ville distribution, reassignment methods, and the empirical mode decomposition method are first introduced to exploration of ultrafast dynamics. Among these TF methods, the synchrosqueezing transform successfully illustrates the physical mechanisms in the multiphoton ionization regime and in the tunneling ionization regime. Furthermore, an empirical procedure to analyze an unknown complicated quantum system is provided, suggesting the versatility of TF analysis as a new viable venue for exploring quantum dynamics.

Full Text

Duke Authors

Cited Authors

  • Sheu, Y-L; Wu, H-T; Hsu, L-Y

Published Date

  • November 2015

Published In

Volume / Issue

  • 23 / 23

Start / End Page

  • 30459 - 30482

PubMed ID

  • 26698525

Pubmed Central ID

  • 26698525

Electronic International Standard Serial Number (EISSN)

  • 1094-4087

International Standard Serial Number (ISSN)

  • 1094-4087

Digital Object Identifier (DOI)

  • 10.1364/oe.23.030459

Language

  • eng