Facilities & Experimental Techniques

We have a well-equipped optical spectroscopy laboratory for both steady state and transient spectroscopy. In addition, we have a nitrogen glove box system with a connected evaporator system for organic thin film and device fabrication; and sample preparation.

Our experimental techniques include:

1. UV-VIS and IR Steady State Photoluminescence (PL) Spectroscopy
2. Transient PL or Time-Resolved PL (TR-PL) Spectroscopy
3. Femtosecond Transient Absorption Spectroscopy (TAS) – (white light probe from 450 nm – 1600 nm)
4. Spatially-resolved TR-PL
5. Spatially-resolved TAS
6. Magneto-optical Spectroscopy
7. Two-Photon Photoemission (2PPE) Spectroscopy
8. Time-Resolved 2PPE (TR-2PPE) Spectroscopy
9. X-ray Photoelectron Spectroscopy (XPS) and UV Photoelectron Spectroscopy (UPS)

Our key equipment include:

• 1 mJ, 1kHz, 150 fs Coherent Legend Regenerative Amplifier pumping a TOPAS Optical Parametric Amplifier (OPA) – (236 nm – 2600 nm)
• 4 mJ, 1kHz, 50 fs Coherent Libra Regenerative Amplifier pumping two Opera Solo OPAs (290 nm – 2600 nm)
• 76 MHz, 100 fs Coherent Mira Oscillator
• Two units of Optronis Optoscope Streak Camera System (detection range: 350 – 950 nm; 6 ps time resolution; and time window: 300 ps – 100 ms)
• 7T Oxford Magneto-Optical Cryostat
• Various Optical and Microscopy Cryostats
• Various Spectrometers equipped with point and array detectors covering 300 – 1700 nm
• X-ray Photoelectron Spectroscopy System
• 5-Port Glove Box System and Evaporator Chamber