Fast Transient Absorption/Reflectivity Spectrometer (FTAS)
EFSL - EuroFEL Support Laboratory -
This optical pump-probe technique involves the excitation of a sample using frequency-tunable light from the optical parametric amplifier; the sample is then probed with a time-delayed supercontinuum of white light. Both transient absorption and reflectance can be measured as a function of the probe time delay with a time resolution of up to 50 fs.
TECHNICAL SPECIFICATIONS
- Repetition Rate [Time Resolution]: 1KHz [50 fs]; 1KHz-50 KHz [190 fs]
- Pump Energy Range*: 240-2000 nm
- Probe Energy Range*: 250-1600 nm
- Time Window: up to 1 ns **
- Sample Temperature: RT, 77K
** Extension for delays in the range 10 ns – 10 ms
AVAILABLE TECHNIQUES
- FTAS in transmission
- FTAS in reflection
SAMPLES
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Solid samples. Sample holder available. Sample surface area: ideal 10 mm x 10 mm, minimum 5 mm x 5 mm, maximum 50 mm x 50 mm.
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Liquid samples. Cuvette 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 sample and start 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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Photovoltaic
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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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