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Coherent Light Sources at the Nanoscale

机译:纳米尺度的相干光源

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This review focuses on coherent light sources at the nanoscale, and specifically on lasers exploiting plasmonic cavities that can beat the diffraction limit of light. Conventional lasers exhibit coherent, intense, and directional emission with cavity sizes much larger than their operating wavelength. Plasmon lasers show ultrasmall mode confinement, support strong light–matter interactions, and represent a class of devices with extremely small sizes. We discuss the differences between plasmon lasers and traditional ones, and we highlight advances in directionality and tunability through innovative cavity designs and new materials. Challenges and future prospects are also discussed.
机译:本综述侧重于纳米级的相干光源,特别是在激光器上,利用可以击败光衍射极限的等离子体腔。 常规激光器具有比其工作波长大得多的腔体尺寸相干,强烈和方向发射。 等离子体激光器显示超大模式限制,支持强烈的灯具相互作用,并代表一类具有极小尺寸的设备。 我们讨论了等离子体激光器和传统的差异,我们通过创新的腔设计和新材料突出了方向性和可调性的进步。 还讨论了挑战和未来的前景。

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