Pump-probe experiments can be performed with a single-wavelength probe. In this case, samples can be excited with radiation at 1030, 800, 400 or 266 nm and probed with a single wavelength generated by an OPA. The pump light is modulated with a chopper and the pump-probe signal is extracted using a lock-in amplifier. This method is complementary to the measurement of transient absorption and reflectivity with white light, as it allows access to probe wavelengths in the NIR/MIR (1600 – 20000 nm) not available in the other experiments.
TECHNICAL SPECIFICATIONS
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Repetition Rate [Time Resolution]: 1KHz [50 fs]; 1KHz-50 KHz [190 fs]
- Pump Energies: 1030, 800, 400, 266 nm
- Probe Energy Range*: 250-20000 nm
- Time Window: up to 1 ns
- Sample Temperature: RT, 77K
* Range depends on source used
AVAILABLE TECHNIQUES
- Pump-Probe in transmission
SAMPLE
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Solid samples. Sample holder available. Sample surface: ideal 10 mm x 10 mm, minimum 5 mm x 5 mm, maximum 50 mm x 50 mm.
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Liquid samples. Cuvettes and rotating cell available. Solution volume: typical 300 μl, minimum 50 μl.
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Solid samples can be studied in transmission even at 77K.
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Time to load the sample and start the measurement: 10 min at RT, 60 min at 77K.
USE FOR
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Semiconductor/ Microelectronics
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Nanostructured materials
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Hybrid Materials
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Molecules and Complexes
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Photovoltaics
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Plasmonics
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Photocatalysis
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Sensors
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Energy
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Biophysics
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