ULB Research ⤶	Description of the Unit	Projects of the Unit	Composition
Collaborations of the Unit	Protected technologies	Publications	Skills

Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES)

Faculty of Sciences | Chemistry

(Code: ULB165)

► Computational atomic structure

No funding agency referenced.

Calculation of atomic structures and data including energy levels, electronaffinities, radiative and non-radiative transition rates, lifetimes of excit ...

► Ab initio calculation of molecular structures

No funding agency referenced.

Quantum Chemistry methods are used to calculate the structure and the dynamics of small stable and unstable molecular species, having a direct experime ...

► Atomic and molecular dynamics and reactivity

No funding agency referenced.

In this research project we study the properties (energies, radiative transition probabilities, autoionization rates and population mechanisms) of mult ...

► Molecular vibration

No funding agency referenced.

Acquisition of spectral data at high resolution using interferometric techniques and ultrasensitive lasers, eventually coupled, revealing the structure ...

► Infrared and UV-visible line profiles

No funding agency referenced.

Measurements of absorption line parameters (positions, absolute intensities, widths) and absorption cross-sections using Fourier transform spectroscopy ...

► Molecular agregates and prebiotic molecules

No funding agency referenced.

Develop spectral simplification techniques using supersonic jet expansion coupled to a Fourier transform spectrometer and a laser diode system (CRDS),  ...

► Reference spectroscopic data

No funding agency referenced.

Absorption line parameters (positions, absolute intensities and widths) and cross-setions of stable molecules in the infrared-UV-Visible ranges (600 -  ...

► Spin isomers

No funding agency referenced.

Understand and exploit experimental spin conversion mechanisms.

► Spectroscopy in the near infrared

No funding agency referenced.

Measure line parameters (positions, absolute intensities and pressure effects) in the near infrared range, through development and use of sensitive and ...

► Technological development

No funding agency referenced.

We develop instrumetns in the laboratory: A high resolution Fourier transform spectroscopy is coupled to intracavity laser excitation (FT-ICLAS); A sup ...

► Software development

No funding agency referenced.

We write software to (i) treat high resolution spectra allowing to measure line profiles parameters including instrumental contribution of lasers or in ...

► Spectral analysis and model-Hamiltonians

No funding agency referenced.

High resolution spectra of di- and poly-atomic molecules recorded in various spectral ranges are analysed. In this framework, we contribute to the theo ...

► Atmospheric composition measurements by infrared spectroscopy from satellites

No funding agency referenced.

Monitoring of the atmosphere and study of its composition change, from analysis of remote sensing satellite observations using infrared spectroscopy. D ...

► Ground-based measurements of the atmospheric composition by infrared spectroscopy

No funding agency referenced.

Exploitation of ground-based solar occultation measurements for atmospheric chemistry and climate applications. Study of a selection of atmospheric spe ...