As much as some would like to envision a world entirely bereft of disk-based media, with Blu-ray being the medium's swan song, that ain't happening. Sony's already looking to the future, and in cahoots with Tohoku University, it has developed a blue-violet laser capable of 100 watt output. That's reportedly more than 100 times the “world's highest output values for conventional blue-violet pulse semiconductor lasers.” In the press release, the company said its tested using su……

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