The Lasers and Spectroscopies Research Unit (LLS) unites the efforts of physicists, but also chemists and engineers, to carry out experimental and theoretical research, both fundamental and applied.

This research focuses on the development and use of laser spectroscopies for the study of light-matter interactions, gases, solid and liquid surfaces, as well as (bio-)organic materials and nanomaterials. Jointly, LLS researchers are members of the ILEE, NISM, NARILIS and NAXYS.

On the experimental front, LLS's particularity lies in its unique expertise in the development of original optical instruments developed by the laboratory's researchers. This equipment, like the commercial instruments with which the laboratory is equipped, is overwhelmingly integrated into the LOS technology platform. Alongside the design of these experimental tools, the LLS also develops theoretical tools, to analyze, understand and predict classical and quantum optical phenomena, as well as molecular interaction processes in the gas phase, to which the instruments give access.

The LLS regularly collaborates with other teams from the Departments and Faculties of the University of Namur. A solid international reputation has been built up over the years, thanks to the originality and excellence of the research carried out in very specific niches, in collaboration with numerous external laboratories, in Belgium and abroad.

The cutting-edge research carried out at the LLS falls into three main themes:

  • Study of molecules in very low concentration ("pollutants") in the gas phase (Muriel Lepère)
  • Nonlinear optical spectroscopies of molecular layers, surfaces, interfaces and nanostructures
  • Quantum optics and quantum weak measurements

For example, the LLS studies the minimal deviations of light beam propagation from the laws of propagation of isolated light rays (geometrical optics), one manifestation of which is the Goos-Hänchen shift.

Laboratory academics

This research focuses on the development and use of laser spectroscopies for the study of light-matter interactions, gases, solid and liquid surfaces, as well as (bio-)organic materials and nanomaterials. Jointly, LLS researchers are members of the ILEE, NISM, NARILIS and NAXYS.

On the experimental front, LLS's particularity lies in its unique expertise in the development of original optical instruments developed by the laboratory's researchers. This equipment, like the commercial instruments with which the laboratory is equipped, is overwhelmingly integrated into the LOS technology platform. Alongside the design of these experimental tools, the LLS also develops theoretical tools, to analyze, understand and predict classical and quantum optical phenomena, as well as molecular interaction processes in the gas phase, to which the instruments give access.

The LLS regularly collaborates with other teams from the Departments and Faculties of the University of Namur. A solid international reputation has been built up over the years, thanks to the originality and excellence of the research carried out in very specific niches, in collaboration with numerous external laboratories, in Belgium and abroad.

The cutting-edge research carried out at the LLS falls into three main themes:

  • Study of molecules in very low concentration ("pollutants") in the gas phase (Muriel Lepère)
  • Nonlinear optical spectroscopies of molecular layers, surfaces, interfaces and nanostructures
  • Quantum optics and quantum weak measurements

For example, the LLS studies the minimal deviations of light beam propagation from the laws of propagation of isolated light rays (geometrical optics), one manifestation of which is the Goos-Hänchen shift.

Laboratory academics

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Other Physics Department units

LISE

LARN

LPS

LDP