Helium Neon lasers won't be able to see that far, they also tend to be quite heavy and will pump out a nice exhaust plume as well as requiring chemical fuel. And infra-red rays (300GHz-430THz) tend not to penetrate solid objects very well.
THz is IR not microwave. Photonic radars still emit RF at the over the same frequency ranges as normal radar, but use lasers internally to more accurately analyse the received pattern, supposedly.
It's hugely unlikely that Russia will be ahead in anything electronic.
THz is IR not microwave. Photonic radars still emit RF at the over the same frequency ranges as normal radar, but use lasers internally to more accurately analyse the received pattern, supposedly.
It's hugely unlikely that Russia will be ahead in anything electronic.