Step 6: Finishing Touches

    All that's really left is some odds and ends. Secure all your dowels with hot glue after adjusting their position. Use some rubber bands to secure the top piece with the Christmas lights you made before. Finally, turn on the Christmas lights and the laser. Now admire the work you've completed!
... <br> <br>oh, so many things wrong with this. <br> <br>Mainly that lasers pretty much have all the photons travelling in the same direction, you can't really just use ambient light to add into that. <br> <br>Second, the mirrors will actually decrease the lasers performance, unless they are extremely high spec, lab grade mirrors in a contaminant free enclosure, and even then they will affect it somewhat. The mirrors consumers have access to loose light, and therefore decrease the lasers intensity.
This cannot work. Bad science.
Nice effort with your project. My only comment would be that the title should be changed so that people won't go through the time and expense building such a device when it has absolutely no chance of doing what is claimed. <br><br>I understand that you wanted to put this together to compete in a contest and that you were pressed for time, but that doesn't make it work nor does it make it fair for people expecting it to. Perhaps a more accurate title might be &quot;Laser Pointer Amplifier Simulation Concept&quot;, since the output power will most certainly be less than you put in. <br><br>It's good to see you are interested in lasers and I encourage learning all you can about them. Maybe a good demo might be to dissect a small green laser, mount all of the components on a board and get that to lase. I think you'd be surprised at how precise the alignment must be for it to work, but it might well be worth the exercise. Use a camera/monitor arrangement to see the invisible IR energy to do your alignment, and don't forget to use goggles.
Dude I commend you for your efforts and that's a cool looking box you got there, but you cannot just &quot;add&quot; energy from the christmas lights to the laser beam. Tiny incandescent bulbs are a far cry from the flash lamp setup at the National Ignition facility...<br><br>Here's a primer on coherence that explains the science behind it:<br><br>http://en.wikipedia.org/wiki/Coherent_light<br><br>You can build a cheap laser burner out a dvd or cd burner diode, which can be setup to output far more wattage than your typical off the shelf laser pointer. There are plenty of stuff out there on how to do it both here and on LPF...<br><br>Also, here's an instructable that will help you make some suitable mirrors for your laser work:<br><br>http://www.instructables.com/id/DIY-front-surface-mirror.-1/
To spikec thank you for the complement. I was really shooting more towards just the concept and assuming that anyone on this website could figure out a way to make this better. <br> To hivoltage i would like to see you come up with all these lab grade materials in a day or two. Even if you worked at a lab you would still have to order the parts. And by the way, even though christmas lights don't produce as much light as flash lamps they still produce enough light to excite some of the atoms in lasing medium like Yttrium Aluminum Garnet crystals, Neodymium ion-doped glass,etc. I wasn't looking to shoot a plane out of the stratoshere, just looking to put the concept out there and you can't say my concept isn't absolutely right. I mean just read my May 2, 2011 comment and read the June 2011 issue of Popular Mechanics and it literally shows my basic concept on paper.
I am afraid that the physical properties of light do not work like this. while you can collimate a laser into a smaller spot for high concentration of energy over the area of that spot, adding reflectors in a lit box will not amplify anything . in fact you will loose some energy in each bounce because of refraction. your mirrors are not first surface types. <br><br>Now had you taken a green laser .......
My materials weren't exactly top notch and I really needed some sort of lasing medium for it to work properly. I was short of these materials only for time reasons. These lights were meant for the proper function of the lasing medium but using just the mirrors has some light bounce into where the laser beam is. So this means you can definitelyspend more time and money on it to get better lasing medium, mirrors, lasers, and lights( lab-grade lasers use flashtubes to add light to the lasing medium)
building a flash lamp lasing cavity to pump a solid state laser and bouncing a laser pointer through a box full of Christmas lights are entirely different things. any light from the bulbs inside the box will not be coherent and will not able to amplify the laser since it is not in phase. lasing mediums work by creating a population inversion and allowing light already resonating in the cavity to trigger the release of further energy by the excited atoms, allowing all the added light to be in phase. plain glass is not a workable lasing medium because it doesn't have the right properties to allow a population inversion to occur, and light bulbs are nowhere near powerful enough to pump any kind of lasing medium.
I actually just read an article about plans for nuclear fusion in the June 2011 issue of Popular Mechanics magazine. In order for fusion to occur a tremendous amount of energy must be focused on a capsule of hydrogen fuel to achieve basically creating a miniature sun. Powerful lasers are used to do this but must be amplified to achieve the needed power. The lasers pass through amplifiers that are made of lasing medium like phosphate glass which is doped with neodymium surrounded by powerful flashlamps. The light from the flashlamps excites the neodymium atoms and passes on that energy to the laser beam passing through the amplifier. A bunch of amplifiers are set up and a mirror system is used for directing the beam through the amplifiers. This basic setup is to be used to amplify the lasers to a quadrillion times its original power to attempt nuclear fusion.
i think a couple neon lights or noble gas lights would make it really powerful<br>
Lasing medium is used in the making of lasers and the basic principle of the lasing medium is that when it is exposed to bright light it absorbs some of this light and adds it to the laser as it passes through. Therefor the brighter the light around the lasing medium the better the function. I found some info on a powerful lab-grade laser and they built the lasing medium with flashtubes around it, but neon or noble gas light would probably work better than the Christmas lights I used.
Have you measured the power gain? Or estimated it?
As I have said I was a little short on time only because I found out about the wicked lasers contest only a week before it ended.

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