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February 23rd, 2018 | Company News

Time–resolved gas thermometry by laser-induced grating spectroscopy with a high-repetition rate laser system

In a recently published paper by Förster et al. (2017), from The Universities of Oxford and Brighton, they looked into the topic of ‘Time –resolved gas thermometry by laser-induced grating spectroscopy with a high-repetition rate laser system’. This paper used a Laser Quantum ventus 660 nm diode-pump, solid-state laser at a power of 750 mW, as a continuous wave beam within the experimental set-up. Laser-Induced Grating Spectroscopy (LIGS) is a relatively simple analysis and laser system to gather measurements compared to other methods such as Coherent Anti-Stokes Raman Scattering (CARS) or techniques using pulsed lasers.

The paper demonstrated the analytical thermodynamic model of the compression process, it collected data under both cell static conditions and cells subjected to rapid compression by injection of gas. The changes in the temperature was measured over a time scale of 0.1 s with a measurement precision of 1.4%.

To read the full article please visit here: https://link.springer.com/content/pdf/10.1007/s00348-017-2370-6.pdf

To find out about more on the ventus 660 used in the experiment, please visit here.

 

Reference:

Förster, F. et al. 2017. Time –resolved gas thermometry by laser-induced grating spectroscopy with a high-repetition rate laser system. Exp Fluids.58:87.



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