- Carrier diffusion coefficient in a matter of minutes!
- Non-invasive measurement technique
- Fully automated and computer controlled
- Continuous setting of grating period
- Sensitivity down to µJ/cm² excitation level
- Advanced measurement and analysis software
HARPIA-TG is a transient grating spectrometer for carrier diffusion coefficient and lifetime measurements. 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.
- Transient grating spectroscopy
- Single-wavelength transient absorption
|Grating recording wavelength 1)||300 – 450 nm|
|Grating period 2)||2 – 10 μm|
|Probe wavelength 3)||1030 nm|
|Temporal resolution||< 290 fs|
|Delay range||Up to 8 ns|
|Physical dimensions (L × W × H)
||730 × 420 × 188 mm|
HARPIA-TG offers a dedicated software that enables fully automated selection of pump and probe parameters and grating period, thus, making the measurements of diffusion coefficient and carrier lifetime as simple as possible.
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