MadSci Network: Physics

Subject: A few questions about LASERs, and their power

Date: Sun Jun 6 05:03:28 1999
Posted by John Carter
Grade level: 10-12 School: Van Nuys High School
City: Los Angeles State/Province: CA Country: USA
Area of science: Physics
ID: 928663408.Ph

Hi, my name is John, I have a few questions I have to ask before 
trying to construct a laser for a school project. I fully 
understand the operation of lasers so non of that has to be re-
explained to me.
1. What type of laser(gas) makes a green beam?
2. How much power would it take for a laser to burn through a 
business card(or so) with a single pulse.
3. I was reading about this laser 'gun' that made a short 
intense laser pulse and charged for 30 seconds!, i thought 
capacitors only charged for millionths on a second, please 
explain why this is so.

Re: A few questions about LASERs, and their power

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