Tunable Bessel light modes: engineering the axial propagation
Tunable Bessel light modes: engineering the axial propagation
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DOI：
10.1364/oe.17.015558
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发表时间：
2009-08-31
期刊：
影响因子：
3.8
通讯作者：
Dholakia, Kishan
中科院分区：
文献类型：
--
作者：
Cizmar, Tomas;Dholakia, Kishan
由于不受衍射影响，贝塞尔光模式在各种应用中具有潜在的优势。然而，它们确实沿着其轴向传播长度表现出显着的强度变化，这妨碍了它们的适用性。在本文中，我们提出了一种产生贝塞尔光束的技术，该贝塞尔光束在可访问的空间频率范围内具有可调谐的轴向强度。光束可以被设计成沿着其传播长度具有恒定的强度。最后，我们演示了如何形成沿其轴向范围具有不同传播常数的贝塞尔光束，从而导致其横向横截面的缩放比例可调。 (C) 2009 美国光学学会
Due to their immunity to diffraction, Bessel light modes potentially offer advantages in various applications. However, they do exhibit significant intensity variations along their axial propagation length which hampers their applicability. In this paper we present a technique to generate Bessel beams with a tunable axial intensity within the accessible range of spatial frequencies. The beam may be engineered to have a constant intensity along its propagation length. Finally, we demonstrate how one can form a Bessel beam with a varying propagation constant along its axial extent which results in a tunable scaling of its lateral cross-section. (C) 2009 Optical Society of America