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how to make a blue laser? Answered

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scotchtape110 (author)2009-02-07

combine a green and yellow one

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Darter76 (author)scotchtape1102009-06-06

lol it would be like 5x more expensive that way

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Awesome-aniac (author)2009-02-07

You could buy a blue laser pointer and modify it.

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CameronSS (author)2009-02-07

You cannot literally "make" a blue laser at home, unless you have madd skilz and madd workshop facilitiez. You will need to purchase a gallium nitride laser, which has an output wavelength of about 405nm (a typical red laser is at about 630nm). This is more of a blue-violet, but it's as close to blue as you are likely to get. These are the lasers used in BluRay drives, so if you find a scrapped PS3, that's a good place to look. You can also purchase the laser diodes all over the Internet, a bit of searching should help you find one for sale.

You can get more information on how to use the diodes here and here.

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