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Two-Dimensional Spectroscopy at Terahertz Frequencies

  • Jian Lu
  • Xian Li
  • Yaqing Zhang
  • Harold Y. Hwang
  • Benjamin K. Ofori-Okai
  • Keith A. Nelson
Chapter
Part of the Topics in Current Chemistry Collections book series (TCCC)

Abstract

Multidimensional spectroscopy in the visible and infrared spectral ranges has become a powerful technique to retrieve dynamic correlations and couplings in wide-ranging systems by utilizing multiple correlated light-matter interactions. Its extension to the terahertz (THz) regime of the electromagnetic spectrum, where rich material degrees of freedom reside, however, has been progressing slowly. This chapter reviews some of the THz-frequency two-dimensional (2D) spectroscopy techniques and experimental results realized in recent years. Examples include gas molecule rotations, spin precessions in magnetic systems, and liquid molecular dynamics studied by 2D THz or hybrid 2D THz-Raman spectroscopy techniques. The methodology shows promising applications to different THz-frequency degrees of freedom in various chemical systems and processes.

Keywords

Terahertz Gas-phase molecular rotations Liquid-phase molecular dynamics Magnetic resonances 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Jian Lu
    • 1
  • Xian Li
    • 1
  • Yaqing Zhang
    • 1
  • Harold Y. Hwang
    • 1
  • Benjamin K. Ofori-Okai
    • 1
  • Keith A. Nelson
    • 1
  1. 1.Department of ChemistryMassachusetts Institute of TechnologyCambridgeUSA

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