The shorter the antenna, the higher the frequency — so what happens when nanoantennas hit optical frequencies? One answer may lead to high-harmonic generation without the need for high-powered lasers.

中文翻译：

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高谐波产生：小型化的光明面

天线越短，频率越高-那么，当纳米天线达到光频率时会发生什么？一个答案可能会导致产生高谐波，而无需使用大功率激光器。