this post was submitted on 22 Jun 2024
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NonCredibleDefense

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[–] bufalo1973@lemmy.ml 27 points 2 months ago (5 children)

If you fire a laser against a mirror, it bounces but raises the heat of the mirror so you end up melting the mirror and destroying the drone.

[–] skulblaka@startrek.website 25 points 2 months ago

I may risk being too credible here, but a $80 drone is a lot more expendable than a $40m laser tank. The drone can be considered a consumable. Hell, mark the drones down as ammo.

[–] nuke@sh.itjust.works 22 points 2 months ago* (last edited 2 months ago)
[–] CanadaPlus@lemmy.sdf.org 10 points 2 months ago

Depending on how long you do it, how powerful the laser, and how quickly it can cool off at the same time.

And like the other guy said, you can make really good mirrors if you only care about one wavelength.

[–] BigMikeInAustin@lemmy.world 9 points 2 months ago (1 children)

But the drone stays in the air by making wind, which would cool down the mirror?

[–] CanadaPlus@lemmy.sdf.org 4 points 2 months ago* (last edited 2 months ago) (1 children)

Unironically yes. If that's not enough, add water.

[–] BigMikeInAustin@lemmy.world 3 points 2 months ago (1 children)

A laser attack during a hurricane would really surprise the target.

[–] mindbleach@sh.itjust.works 2 points 2 months ago

Do not point laser at remaining eyewall.

[–] Jumuta@sh.itjust.works 5 points 2 months ago (1 children)

not if you have total internal reflection

[–] mindbleach@sh.itjust.works 8 points 2 months ago (2 children)

In all seriousness, wavelength-specific dielectric mirrors can approach six nines of reflectivity.

The hard part is hitting the mirror instead of the drone.

[–] Socsa@sh.itjust.works 3 points 2 months ago (1 children)

And keeping the mirror surface clean

[–] mindbleach@sh.itjust.works 3 points 2 months ago

Yeah I guess you can't pulse-ablate a mirror made of plastic.

Though it invites a backup strategy of spraying your enemies with molten drone.

Just make the mirror as wide as the drone! Oh, wait...