The results show that the threshold of airbreakdown decreases when laser wavelength increases, while the wavelength has no evident effect on the momentum coupling coefficient.
The results show: pulse power density from CO2 laser reaches airbreakdown threshold through thrice reflecting focus system, and plasma radiation phenomena is observed in the experiment.
We fear the breakdown of the electric grid, the end of non-renewable resources, the expansion of deserts, the loss of islands, and the pollution of our air and water.