3 ms·
I'm generally on team NIF as a laser guy, but my biggest gripe is the calculation for ignition they employ uses the UV light into the hohlraum which ignores the
by noobermin 3y ago
I'm generally on team NIF as a laser guy, but my biggest gripe is the calculation for ignition they employ uses the UV light into the hohlraum which ignores the 3-omega frequency tripling as the light (originally IR at 1053nm) enters the main target chamber. That frequency tripling will always rob a lot of energy from the lasers as it does generally for normal laser setups. I feel like loss from other parts of the laser like the amplification and other general losses are understandable because it's a laser and that's unavoidable, but they absolutely should include the loss from the frequency tripling because that seems like an added on thing (this improves penetration into the walls of the hohlraum), even though that will push them below the ignition threshold again.
The loss there is about a factor of 1/2 or so, so they'd have to improve things by that much.