Zapata-Rodríguez Carlos J, Miret Juan J
Departamento de Optica, Universidad de Valencia, Dr. Moliner 50, 46100 Burjassot, Spain.
J Opt Soc Am A Opt Image Sci Vis. 2010 Mar 1;27(3):663-70. doi: 10.1364/JOSAA.27.000663.
The propagation and transmission of Bessel beams through nano-layered structures has been discussed recently. Within this framework we recognize the formation of unguided diffraction-free waves with the spot size approaching and occasionally surpassing the limit of a wavelength when a Bessel beam of any order n is launched onto a thin material slab with grazing incidence. On the basis of the plane-wave representation of cylindrical waves, a simple model is introduced providing an exact description of the transverse pattern of this type of diffraction-suppressed localized wave. Potential applications in surface science are put forward for consideration.
最近已对贝塞尔光束通过纳米层状结构的传播和传输进行了讨论。在此框架内，我们认识到，当任何阶数n的贝塞尔光束以掠入射角投射到薄材料平板上时，会形成光斑尺寸接近并偶尔超过波长极限的无引导无衍射波。基于柱面波的平面波表示，引入了一个简单模型，该模型能准确描述这种衍射抑制局域波的横向模式。文中还提出了其在表面科学中的潜在应用以供考虑。
