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Questions tagged [lasers]

Questions about monochromatic, coherent light sources working by stimulated emission.

2 votes
1 answer
126 views

Exploring the Feasibility of Laser-Based Ram Scoops Powered by Micro Black Holes [closed]

Ram scoop ships are a well-loved element of hard science fiction, typically employing magnetic fields to harvest interstellar gas. However, this concept often grapples with practical issues like drag ...
TheDyingOfLight's user avatar
6 votes
6 answers
2k views

Can we combine a laser with a gauss rifle to get a cinematic 'laser rifle'?

So, I've been trying to think of ways to have a sci-fi "laser beam" in a setting that at least gives a fig leaf of realism. After reading through many other posts here it's become clear that ...
dark7element's user avatar
7 votes
2 answers
2k views

Effects if a human was shot by a femtosecond laser

Laser guns in science fiction are extremely common to the point of being a common cliche. According to atomic rockets lasers would be much more effective as pulsed lasers compared to continous-wave ...
Coolcats112's user avatar
  • 1,140
4 votes
4 answers
1k views

Laser finger guns

This is not really connected to my story but I had an idea of having finger guns that actually work. Because lasers are cool I thought that you could have a character with the ability to magically ...
Coolcats112's user avatar
  • 1,140
6 votes
1 answer
379 views

Could black holes be used to warp a laser transmission back to the point of origin?

I had an idea, in which humanity sends signals out (via Laser Communication), in a search for extraterrestrial life. As a result of gravitational lensing, the laser signals are eventually turned back ...
Blue Skin and Glowing Red Eyes's user avatar
2 votes
2 answers
143 views

Could laser collisions be used as an interstellar dust deflector?

What inspired this question is this : I was once reading that a real effort is underway to dream up a 0.2c spaceship (0.2c means one fifth the speed of light). Another story I read tells that ...
HelloHiHola's user avatar
5 votes
7 answers
2k views

What would the effects of a space based laser weapon system capable of tracking and destroying any projectile posing a threat to human life?

Imagine a constellation of satellites equipped with sensors capable of identifying any object posing a risk to humans and targeting it with lasers to neutralize it. The constellation covers the entire ...
Michael Horwitz's user avatar
3 votes
8 answers
5k views

Is a world laser possible?

Right now, I am developing a weapon of mass destruction dubbed 'The World Laser'. Basically, the antagonist is trying to destroy the world completely by cutting it in half in a singular motion using a ...
TempzApex's user avatar
  • 373
4 votes
2 answers
432 views

Thermal Superconductors vs Pulse Lasers...in atmosphere

Based of a conversation with @Starfish Prime regarding the answers from this question here. In short, while the question itself had a satisfactory answer with it being that pulse lasers would ...
Seraphim's user avatar
  • 4,971
6 votes
3 answers
2k views

Thermal Superconductors vs Pulse Lasers

How well can a thermal superconductor protect against pulse lasers? First off, what is a thermal superconductor? It is a material that has a theoretical infinite thermal conductivity, similar to what ...
Seraphim's user avatar
  • 4,971
14 votes
9 answers
4k views

Can lenses defend against lasers in space combat?

You have a spaceship, covered in steel armor. The enemy is shooting a laser at you in pulses intense enough to vaporize the steel. But you have a brilliant idea: float a big glass lens in front of ...
causative's user avatar
  • 8,315
0 votes
2 answers
306 views

How to protect against laser blinding warfare?

Here is the problem: You have a spaceship, with cameras and view ports, and there is a new laser technique going around: Simply shoot cameras with your laser, and blind anyone who tries to peer ...
Kraken Writhing's user avatar
0 votes
0 answers
63 views

Viability of lasers in space [duplicate]

Specifically, if lasers were to be used as a weapon, or as a mining tool, for a spaceship, would it be at all practical? Most spaceships in my world are made of aluminum and/or titanium, at least ...
Kraken Writhing's user avatar
2 votes
5 answers
324 views

Why is my laser’s effectiveness dependent on the target material?

This is for a moderately hard sci-if (as in, as real as I can get it, minus FTL & humanoid aliens) Side B has been captured by Side A, in order to get them to fight Side C. But Side B has a plan, ...
Blue Skin and Glowing Red Eyes's user avatar
10 votes
11 answers
3k views

Would a laser resistant (heavily heat resistant?) armour for space ships have unfortunate consequences and would it still have to deal with heat?

Basically, I want to decisively put an end to any idea that lasers could be used in my space combat in any large degree. One of the solutions I've thought of is a world having advanced armour (either ...
Mandalore The Proud's user avatar

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