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Flash Photolysis System-FP100
The FP-100 system is a VIS-NIR flash photolysis system, capable of covering TA signal detection from the visible to the near infrared region.
Flash photolysis is widely applied to the analysis of photoinduced processes, with research objects including organic molecules, polymers, nanoparticles and semiconductor materials. It also plays an important role in the study of photosynthesis and the analysis of light-driven conformational changes in plants and other biological systems.
≤10ns Temporal Resolution
High Sensitivity ≤0.2mOD
High-energy DPSS-Laser
Fully Automated Operation
Product Features
Kinetic Scanning
Kinetic signals are collected by photodiodes, enabling efficient, accurate and highly sensitive acquisition of TA kinetics of samples at a specific wavelength. By setting the scanning spectral range, kinetics at different wavelengths can also be obtained, allowing the generation of two dimensional color maps.
Full-spectrum Scanning
An advanced IsCMOS camera is used to capture spec-tral signals, enabling rapid gated acquisition of tran-sient absorption (TA) spectra at different momentsfollowing excitation. This high speed detection dra-matically reduces two dimensional data collectiontime and delivers exceptional performance for ultra-fastspectroscopy studies.
The IsCMOS image intensifier camera used for full-spectrum scanning adopts high quantum efficiency, lownoise Hi-QE and GaAs image intensifiers, which are tailor-made for picosecond time-resolved imaging and spectral experiments. Its optical shutter time is breakthroughly shortened to 200 ps. This innovation signifi-cantly improves the camera's ability to capture high-speed and transient processes, making it particularly suit-able for precise imaging requirements on ultra- short time scales and meeting the ultimate requirements for im-aging performance in high-end scientific research fields.
The nanosecond laser used in this system has an output wavelengths of 266 nm, 355 nm, 532 nm and 1064 nm; the OPO output covers 420-680 nm and 720-2300 nm, meeting the excitation conditions of most samples. The flash photolysis system is equipped with program-controlled adjustment of laser output energy, wavelength switching, and laser safety protection measures, featuring convenience, high efficiency and safety.
SPECIFICATIONS
| Light Source | 75 W Xenon Lamp |
| Spectral Range | 185-2000 nm |
| Detection Mode | Transmission Mode |
| Detection Range | 200-900 nm (Photodiode:400-900 nm) |
| Detection Sensitivity | ≤0.2m0D |
| Time Window Range | < 20 ms (depends on laser repetition rate) |
| Temporal Resolution | ≤10ns |
| IRF | ≤ 50 ns (typical) |
| Scan Time Window | Adjustable |
| Oscilloscope Bandwidth | 500 MHz |
| Fluorescence Measurement | Fluorescence lifetime measurement available |
Spectrometer
| Type | Monochromator, 200 mm focal length, slit exit |
| Detector Coupling | Visible PMT and photodiode detectors |
Software & Control
| Acquisition Software | Data acquisition and analysis software |
| Control Functions | Program-controlled monochromator & oscilloscopeenabling single-wavelength kinetics and spectral scan data acquisition |
| Data Processing | Background subtraction available to eliminate fluorescence interference |
| Automation | Fully integrated system with automatic optical path switching |
DPSS Nanosecond OPO Laser
| Laser Output Wavelengths | 1064/532/355/266 nm |
| OPO Wavelength Tuning Range | 210-350 nm/420-700 nm/720-2300 nm |
Other Expandable Modules
| NIR Detection Module Range | 900-1600 nm |
| MIR Detection Module Range | 1-12 um |
| ISCMOS Fast Spectral Acquisition | Direct time-resolved spectral acquisition |
APPLICATION
Kinetic Scanning
Through the automatic switching of visible and near infrared photodiodes, the coverage of TA signal samplesfrom the visible to the near infrared region is realized. Figure 1 shows the TA signal of [Ru(bpy]Cl 6H2O ·MeCN under laser excitation at a wavelength of 355 nm. Figure 2 shows the near infrared TA signal of PbS inn-hexane solution (355 nm excitation).
Full-spectrum Scanning
TA spectral information of samples can be rapidly acquired in this mode. Sodium persulfate, as a strong oxi-dant, is of great significance for the research on its biodegradability and application. The system can be used torapidly and efficiently calibrate the transient absorption spectrum and kinetic information of sulfate ions insodium persulfate, as shown in Figure 3, providing data support for further in-depth research.
Fluorescence
The system can also be used for fluorescence detection, as shown in Figure 4. During the test, there is a fluores-cence subtraction option in the software, allowing the acquisition of TA signals free of fluorescence interfer-ence.
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