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Time-resolved absorption spectrum analysis system
Nanosecond system
The time-resolved absorption spectrum analysis system is a device to perform transient absorption spectrum measurements in extremely short time. This system enables to analyze the formation and decay process of a reactive intermediate in a photoreaction in solutions, solids, membranes, etc., are possible. By using the streak camera as the detector and performing multiple-wavelengths time-resolved measurements with a single shot, time-resolved absorption spectra and transient absorption time-resolved spectral images can be measured simultaneously, and you can obtain images of irreversible phenomenon. The newly developed High dynamic range streak camera C13410 is employed as the detector. Minute transient absorption changes can also be measured in a high dynamic range with high S/N.
《Nanosecond system》Time resolution: 7 ns, Measurement time range: 20 ns to 1 ms.
Features
- Measurements with the smallest optical density (OD) of 0.005 (for single shot, OD value is 0.02 or less)
- Simultaneous measurements of multiple wavelengths using a single shot
- High time resolution
- Automatic measurements with computer control
Measurement example
Measurement of transient absorption time-resolved spectrum
Time-resolved transient absorption spectral streak image of the triplet-triplet absorption of anthracene in supercritical carbon dioxide (40 °C, 10.9 MPa)
Data courtesy of :
National Institute of Advanced Industrial Science and Technology
Supercritical Fluid Research Center (Sendai City, Japan)
Researcher:
Dr. Takafumi Aizawa
Specifications
| System name | Nanosecond Q-SW YAG laser |
|---|---|
| Temporal resolution | <7 ns |
| Measurement time range | 20 ns to 1 ms |
| White light source | Xe lamp 150 W/CW |
| Measurement OD value | 0.005 (for single shot, 0.02 or less) |
| Simultaneous observation wavelength width (W) and wavelength resolution (Δλ) | 100 gr/mm: W=510 nm Δλ <3.0 nm 150 gr/mm: W=340 nm Δλ <2.0 nm 300 gr/mm: W=170 nm Δλ <1.0 nm 600 gr/mm: W=85 nm Δλ <0.5 nm |
| Measurement wavelength range | 250 nm to 750 nm |
| Number of channels | Time axis: 1016 ch Wavelength axis: 1344 ch |
Dimensions
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