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    Question on diode construction

    Hi, Im doing a presentation in school on lasers, and i have found a lot of information on the forums helpful. However, one question i could not find from searching the forum or from Sams laser guide is what makes laser diodes have a different wavelength. Is it the physical construction of the...
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    Visable Green Laser

    Hey guys, i want to buy a green laser, but i don't know which one to get. I want a laser that is extremely visible during day/night, but burning capability doesn't matter. I would prefer if the laser was from Dealextreme, but if not thats okay, and around the $60 range. Thanks


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