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Light at a standstill

机译:停滞不前的光

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摘要

Nothing travels faster than light, but how slow can light go? Pulses of light have already been slowed to speeds of just a few metres per second, but now they have been brought to a complete halt. Frozen light is a reality. As they report on page 638 of this issue, Bajcsy and colleagues have trapped, and held, a pulse of light for a few hundredths of a millisecond, which is a long time in optical terms. To those unfamiliar with the realm of quantum optics, the notion of stationary light may seem rather strange. But ultraslow light ― travelling at just a few, instead of 300 million, metres per second ― is easily available in many labs these days. So bringing a light pulse to a full stop was the next logical step.
机译:没有什么比光传播的快,但是光能传播多慢呢?光脉冲已经被减慢到每秒几米的速度,但是现在已经完全停止了。冰冻的光是现实。当他们在本期第638页上进行报告时,Bajcsy及其同事将光脉冲捕获并保持了百分之一毫秒,这在光学上是很长的时间。对于那些不熟悉量子光学领域的人来说,静止光的概念似乎很奇怪。但是,如今,许多实验室都可以轻松获得极慢的光-每秒仅传输几米,而不是每秒3亿米。因此,使光脉冲完全停止是下一步的逻辑步骤。

著录项

  • 来源
    《Nature》 |2003年第6967期|p.610-611|共2页
  • 作者

    Marlan O. Scully;

  • 作者单位

    Princeton University, Princeton, New Jersey 08544-1009, and at Texas A&M University, College Station, Texas 77843-4242, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然科学总论;
  • 关键词

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