Ultrafast Spectroscopy
Presentation
The Ultrafast Spectroscopy Division is equipped with ultrashort-pulse laser sources coupled to devices for transient electronic and vibrational absorption spectroscopy, transient Raman and photoluminescence spectroscopy, dedicated to studies in the condensed phase. These instruments and the associated expertise are aimed at research teams and industrial partners studying and exploiting light–matter interactions in the context of fundamental projects or targeted applications in areas such as:
- Molecular and supramolecular photochemistry and photophysics
- Photodynamics, ultrafast reactivity, and kinetics
- Homogeneous and heterogeneous photocatalysis and photodepollution
- Material degradation and aging under irradiation
- Photosensitive, photoactivatable, and photocommutable intelligent devices and materials
- Conversion of light energy into chemical, electrical, or mechanical energy
National Networks:
LUMA/ULTRAFAST Platform, Labs of the GDR UP
Funders:
University of Lille, CNRS, Hauts-de-France Region, FEDER, ANR, Ministry of Higher Education, France 2030
For any analysis request, please send an email to the following address: pole-spectro-ultrarapide_at_univ-lille.fr
Location / Address:
LASIRE – Building C8 – Cité Scientifique
59655 Villeneuve d’Ascq, France
Phone: +33 (0)3 20 33 59 27
Staff:
Vincent De Waele (Scientific Head of the cluster)
Thomas Roland (Technical Head of the cluster)
Julien Dubois
Equipment – Setups:
5 experimental rooms – 4 femtosecond laser chains – 2 nanosecond laser chains – 8 time-resolved spectroscopy setups on fs / ps / ns / µs scales – Vibrational (IR and Raman) and electronic spectroscopy (absorption / reflection / luminescence) – Sampling: confocal microscopy, liquid flow optical cell, in situ cell for solids under controlled atmosphere and temperature, …
Transient UV-Vis-NIR absorption/reflection spectroscopy :
- Astrella amplified laser : Ti:Sa, 1kHz, 800 nm, 35 fs
- 2 OPAs (230 nm – 2600 nm)
- Helios transient absorption spectrometer with probe range from 320 nm to 1400 nm
- Confocal microscope, spatial resolution < 1 µm, probe range from 450 nm to 750 nm
- Pump–probe delay up to 7 ns
Transient Absoption/ Reflection In Situ for the Study of Solid Materials :
- Amplified Libra Ti:Sa Laser, 1 kHz, 800 nm, 90 fs
- 1 OPA (230 nm – 2600 nm); 1 OPA + DFG (1.1 µm and 20 µm); 1 OPA + SHBC
- Yb Satsuma X Laser, 28 W, 10 Hz–40 MHz, 400 fs, SynchroLock and Femtoburst
- Second and third harmonics (516 nm, 343 nm)
- Infrared pump–probe spectrometer (3 µm–14 µm)
- Optical cells under controlled environment and temperature
Complementary Setups:
| Setups | Settings |
| Femtosecond UV-Vis Transient Absorption Spectroscopy | – fs Libra 1W Laser, 100 fs, 1 kHz + Palitra OPA – Probe between 320 nm – 750 nm – Optical delay 1 ns |
| Nanosecond Transient Absorption / Scattering Spectroscopy | – ns Surelite Laser, 10 Hz + Panther OPO – Single-channel detection between 250 nm and 1000 nm |
| Nanosecond Transient Absorption / Emission and Scattering Spectroscopy | – ns Surelite Laser, 10 Hz + Horizon OPO, refined – ns iCCD camera |
| Photon-Counting Emission Spectroscopy Setup | – fs Chameleon Laser + harmonic generation and OPO – Pulsed laser diode – TCSPC detection, 40 ps |
