Optical spectroscopy

Definition

Optical spectroscopy encompasses a wide variety of techniques used to study how matter interacts with light. Optical spectroscopy techniques are used in physics, astronomy, chemistry, biology, and associated research fields.

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Latest Research and Reviews

News and Comment

  • News and Views |

    Optical trapping of ions is relatively new and has been limited to a few milliseconds so far. Now researchers have trapped a single barium ion for several seconds, putting experiments with ultracold atoms and ions within reach.

    • Dietrich Leibfried
    Nature Photonics 11, 688–690
  • News and Views |

    Gibberellins (GAs) control key growth and developmental processes in plants. Real-time monitoring of GA concentrations in living tissues is critical for understanding the actions of this hormone class. A first-generation optogenetic GA-nano-indicator now illuminates the effects of GA levels on cell length and light signalling.

    • Tamar Azoulay-Shemer
    • , Po-Kai Hsu
    •  & Julian I. Schroeder
    Nature Plants 3, 765–766
  • News and Views |

    Simultaneous trapping, alignment and anti-Stokes fluorescence cooling of Yb3+:YLF nanocrystals from room temperature to temperatures as low as about 130 K can now be realized using a single-beam optical dipole trap within a low-pressure environment.

    • Andrew Geraci
    Nature Photonics 11, 613–614
  • News and Views |

    Single-molecule detection commonly requires focused laser beams because of the small absorption cross-sections of dye molecules. Now, researchers have shown that thousands of dye molecules in nanoparticles can transfer light excitation to a single acceptor dye, enabling single-molecule detection at sunlight excitation power.

    • Guillermo P. Acuna
    •  & Philip Tinnefeld
    Nature Photonics 11, 616–618