It operates as a non-invasive and non-destructive pump-probe spectrometer exciting the sample with laser interference and, subsequently, recording the transient grating – spatial refractive index modulation. A delayed beam probes the modulation decay, which corresponds to the carrier diffusion. By automated change of the grating period, the technique provides a detailed information on the dynamics of carrier propagation.
Coupled with CARBIDE or PHAROS laser with integrated optical parametric amplifier (I-OPA), the compact system is fully automated and computer-controlled via advanced measurement and analysis software. Thus, the user only needs to put the sample in the holder and start the measurement to obtain the diffusion coefficient in a matter of minutes.
Download datasheet here.
- Transient grating spectroscopy
- Single-wavelength transient absorption
|Grating recording wavelength 1)
|340 – 560 nm
|Probe wavelength 2)
|Grating period 3)
|1.15 – 15 μm
|< 290 fs
|Up to 8 ns
- Extendable to long-wave VIS/NIR. Contact
- SH (515 nm) or OPA-based probe is available upon request. Contact
- Depends on the excitation wavelength.