Posted by Roy Tony on 12/24/06 03:12

Regular DVDs and audio Cd's used red rays. And if we're now using
blue-violet lasers (Blu-ray) to read and write DVDs and Cd's
because it has a shorter wavelength, why not keep going a little
further to say, purple laser?

Would it be possible going beyond the visible (colour) spectrum
into an even shorter wavelength of the ultra-violets (UV) and X-rays?

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