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Silicon Lasers

机译:硅激光器

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摘要

Silicon microchips, the thumbnail-sized microprocessors that constitute the brains of a PC, are heading for a disaster created by their own remarkable success. As chips get faster, the electrons that carry messages through the tiny metal wires within the integrated circuit are having a hard time keeping up. One place where this looming problem is particularly acute is in the ultrafast clocks used to pace computation. Roughly speaking, faster clocks mean faster computing; microprocessors now run at clock rates over one gigahertz (a billion pulses per second) and are getting faster all the time. Soon, says Lionel Kimerling, director of MIT's Microphotonics Center, electrons moving through metal wires will simply be too slow to keep pace.
机译:硅微芯片是构成PC大脑的缩略图大小的微处理器,它们正因自己非凡的成功而遭受灾难。随着芯片变得越来越快,通过集成电路中的细小金属线传送信息的电子很难保持同步。迫在眉睫的问题尤其严重的一个地方是用于计算速度的超快时钟。粗略地讲,更快的时钟意味着更快的计算。现在,微处理器的时钟速率超过1 GHz(每秒10亿个脉冲),并且一直在变得越来越快。麻省理工学院微光子学中心主任莱昂内尔·基默林说,很快,通过金属线移动的电子将太慢而无法跟上步伐。

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