Scientific Case – Laser vaporization and shattering of fog droplets • IR radiation is strongly absorbed by liquid water (but weakly absorbed by atmospheric gasses) - Water at λ = ...
Filetype Power Point PPTX | Posted on 30 Aug 2022 | 2 years ago
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...Scientific case laser vaporization and shattering of fog droplets ir radiation is strongly absorbed by liquid water but weakly atmospheric gasses at um l typical diameter g m mass loading db km extinction lasers can be used to vaporize explosively shatter slow heating cw fast shock waves hot spots superheat limit deg c droplet scattering shift from mie regime rayleigh less along path large a small experiments using pulsed long pulse usec moderate lengths nsec mullaney et al dissipation co appl physics letters kafalas ferdinand fragmentation optics transmission through single slm length mj fwhm focus threshold intensity mw cm gw induced gas breakdown improves as increases kwok enhanced in aerosol interactions benefits short sub reduced energy j longer cleared improved faster use train pulses nonlinear channeling balance diffractive spreading evaluate ultrafast absorption non thermal past experiment nrl aerosols diagnostics beam dump generator id flow down dia kw heater sizer probe filte...