On Mon, Sep 12, 2022 at 2:33 PM Brent Meeker <meekerbr...@gmail.com> wrote:
> > *But it sounds like it just achieves high power by taking ordinary energy > pulses and compressing them in time.* > Well yes, increasing the output energy more than the input energy would violate the laws of physics, but increasing the power would not. This could do more than just make new weapons, it could increase the possibility of controlled nuclear fusion by means of inertial confinement; and to get it going and ignite a deuterium tritium pellet you have to put a huge amount of energy into a short burst, and the shorter the better. John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis> 8um > > Brent > > On 9/12/2022 3:18 AM, Lawrence Crowell wrote: > > HG Well's heat ray is made real. When Townes was asked if this new LASER > could be a weapon he poopooed the idea and said you might as well drop it > from an airplane onto a target. Now 60 years later we are seeing the rise > of weaponized lasers. > > LC > > On Sunday, September 11, 2022 at 6:56:06 AM UTC-5 johnk...@gmail.com > wrote: > >> Using current techniques the power of a laser is limited because of the >> damage intense power can cause to the optical elements in the laser. In a >> new paper a method has been found to overcome this limitation by making the >> optical elements, not out of glass or diamond or sapphire but, out of >> plasma; a laser built using this technique could produce laser pulses with >> power a million times more intense than anything we have today and well >> into the Exawatt range. The authors propose building a laser with 90% >> efficiency that can produce light pulses with a duration of 2.2*10^-14 >> seconds with the power of one Exawatt. The power generating capacity of the >> entire U.S. electrical grid is about one Terawatt or 10^12 watts, a Exawatt >> is 1 million times greater than that or 10^18 watts. >> >> Plasma Transmission Gratings for Compression of High-Intensity Laser >> Pulses >> <https://journals.aps.org/prapplied/pdf/10.1103/PhysRevApplied.18.024026> >> >> John K Clark See what's on my new list at Extropolis >> <https://groups.google.com/g/extropolis> >> upl >> > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to everything-list+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/everything-list/bcb64df0-cad0-4df7-bc2f-49d1d81fa940n%40googlegroups.com > <https://groups.google.com/d/msgid/everything-list/bcb64df0-cad0-4df7-bc2f-49d1d81fa940n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to everything-list+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/everything-list/ee1cfcb8-d8db-e346-891b-fe33577baf6a%40gmail.com > <https://groups.google.com/d/msgid/everything-list/ee1cfcb8-d8db-e346-891b-fe33577baf6a%40gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/CAJPayv0EXxc5Pe054sMSo3dEfjjvfpuNCJpQc_NF3cu70mGc5Q%40mail.gmail.com.
