Outstanding instruments

Action Spectra

Action spectra are an increasingly important part of semiconductor photocatalyst research. This translates the photonic efficiency as a function of the excitation wavelength. The action spectrum of a photocatalytic system allows identifying key aspects of the mode of action during photocatalytic reactions


Héméra is a center of linear and nonlinear optical spectroscopy dedicated to the non-invasive multi-scale analysis (molecular, nanometric, micrometric) of the physico-chemical properties of materials surfaces and interfaces between materials, whatever their nature (metal, semiconductor, insulator, (bio)molecules) or their physical phase (solid, liquid, gaseous)

Transient Absorption at the femtosecond scale

The transient absorption experiment measures the changes in the visible absorption spectrum of a sample, liquid or solid, induced by a femtosecond laser pulse on a time scale ranging from a hundred femtoseconds to a few hundred picoseconds


Time-resolved microwave conductivity (TRMC) is an excellent technique for the investigation of charge-carrier dynamics, at nanosecond and microsecond time scales, through the sample photoconductivity perturbation upon pulsed laser excitation