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Old 03-27-2012, 02:14 PM #1
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Default Electromagnetic Laser?

Hello,
I have recently been looking into magnets and accidently made an EMP out of an iron core and capacitor (I just wanted to make a strong magnet). It then got me looking into Electromagnetic Weaponry. I am a little confused because Gamma and X-Rays are used medically to penetrate the skin but Radio waves can be used to send a charge through wires (to disrupt them etc), does this not mean that they can also penetrate? I am a little confused because I would think the visible light part of the spectrum such as my laser would not do that. I would like some help with this topic and also how it could link with lasers, is there such thing as a coherent radio/microwave device?
Thanks!


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Old 03-27-2012, 02:32 PM #2
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Default Re: Electromagnetic Laser?

Have you heard of masers ?
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Old 03-27-2012, 05:32 PM #3
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Default Re: Electromagnetic Laser?

check the wiki on em radiation, Electromagnetic radiation - Wikipedia, the free encyclopedia it may have the the info you want, and has a small section on human interaction.

Was trying to help you, but the post I was doing that in was over 500 words and still going so I am cheating, you can get the general info from the wiki then if you have a specific question, I will give it a shot.

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Old 03-27-2012, 06:10 PM #4
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Default Re: Electromagnetic Laser?

What you do in your free time is your business. However just in case you didn't know. Energy weapons and developing/testing of them is prohibited by law. If you get caught making energy weaponry you could face federal charges. Just be careful
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Old 03-27-2012, 06:24 PM #5
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Default Re: Electromagnetic Laser?

Quote:
Originally Posted by jeffreythe00 View Post
What you do in your free time is your business. However just in case you didn't know. Energy weapons and developing/testing of them is prohibited by law. If you get caught making energy weaponry you could face federal charges. Just be careful
Everyone is so volatile on this forum,
It was only a question; I was asking if laser's can penetrate things
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Old 03-27-2012, 06:40 PM #6
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Default Re: Electromagnetic Laser?

Sorry if I seemed volatile. I wasn't trying to. I just wanted to make you aware of possible legal issues if you hadn't already known. Its like asking if you can fill balloons with hydrogen not knowing that hydrogen is explosive. (poor analogy I know) Also as far as laws are concerned, I doubt it will be an issue unless you manage to cause some big interferences with emp discharges or if you live in a hospital . Even then you'd need a fairly large pulse and an antenna. Just be careful is all.

As for the information you are seeking I can't help, sorry. Someone else will have to fill you in on that.
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Old 03-28-2012, 04:31 AM #7
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Default Re: Electromagnetic Laser?

EM penetration depends on wavelength and target material, there is no set scheme.

Radio waves penetrate all nonconductive matter, but reflect off conductive matter. This includes all wavelengths from microwaves and longer.

Next up in frequency is infrared heat waves, which penetrate based on material density. They get absorbed by high density material, and reflected by various other materials.

Next up is invisible infrared light, which behaves exactly like visible light, visible light, and near UV light. Color is our perception of how well light is absorbed or reflected by an object.

Deeper UV light, typically below 360nm, behaves just like the light types above, but is absorbed by our atmosphere, so it does not penetrate far. This kind of light starts the section known as Ionizing Radiation, where as everything above is nonionizing.

Beyond UV are X-rays, which penetrate all matter, but the degree of penetration depends on their frequency, or energy level, as measured in eV (electron volts). The higher the density of the matter the shallower it penetrates.

Lastly is Gamma Rays, which are identical to x-rays but higher energy, and originate within the nucleus instead of the electron shell.
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