Light-induced spin hyperpolarisation in condensed phase

Olga B. Morozova, Alexandra V. Yurkovskaya, Hans Martin Vieth, Denis V. Sosnovsky, Konstantin L. Ivanov

Research output: Contribution to journalReview articlepeer-review

13 Citations (Scopus)

Abstract

An overview of spin hyperpolarisation methods is given; such methods can be used for strong signal enhancement in nuclear magnetic resonance (NMR). We focus on techniques, which are operative in condensed phase and exploit light-induced processes to generate non-thermal spin hyperpolarisation. Such techniques are optical nuclear polarisation (ONP), Chemically induced dynamic nuclear polarisation (CIDNP) and optical pumping (OP). Since in all methods polarisation is transferred from primarily polarised spins to target spins, we also review existing methods for polarisation transfer. In the section dedicated to ONP, we provide its theoretical background as well as practical experimental aspects and describe applications of ONP in molecular crystals and in NV centres in diamonds. In the CIDNP section, we discuss in detail the known mechanisms of CIDNP in liquids and in solids and outline CIDNP applications to detect elusive radicals, to determine their magnetic parameters and to enhance NMR signals. Finally, we provide a short description of OP in semiconductors, light-induced para-hydrogen induced polarisation and chemically induced dynamic electron polarisation. Advantages and challenges of light-induced spin hyperpolarisation are discussed and perspectives in this field are addressed.

Original languageEnglish
Pages (from-to)2907-2943
Number of pages37
JournalMolecular Physics
Volume115
Issue number23
DOIs
Publication statusPublished - 2 Dec 2017

Keywords

  • CIDNP
  • EPR
  • NMR
  • ONP
  • OP
  • polarisation transfer
  • spin hyperpolarisation
  • PHOTOSYNTHETIC REACTION CENTERS
  • EXCITED TRIPLET-STATES
  • EPP
  • OPTICAL NUCLEAR-POLARIZATION
  • MAGNETIC-FIELD DEPENDENCE
  • TIME-SCALE MOTIONS
  • DYNAMIC ELECTRON POLARIZATION
  • SHUTTLE DNP SPECTROMETER
  • CIDNP MAS NMR
  • PARAHYDROGEN-INDUCED POLARIZATION
  • DOPED FLUORENE CRYSTALS

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