Porras M A, Borghi R, Santarsiero M
Departamento de Física Aplicada, Escuela de Ingenieros de Minas, Universidad Politécnica de Madrid, Spain.
J Opt Soc Am A Opt Image Sci Vis. 2001 Jan;18(1):177-84. doi: 10.1364/josaa.18.000177.
We show that the elegant Laguerre-Gauss light beams of high radial order n are asymptotically equal to Bessel-Gauss light beams. The Bessel-Gauss beam equivalent to each elegant Laguerre-Gauss beam is found and shown to have almost identical propagation factors M2. In the limit n-->infinity, elegant Laguerre-Gauss beams can be identified with Durnin's Bessel beam. Our results suggest a new experimental procedure for generating light beams with nondiffractinglike properties directly from the output of a stable resonator.
我们表明，高径向阶数(n)的优美拉盖尔 - 高斯光束渐近等于贝塞尔 - 高斯光束。找到了与每个优美拉盖尔 - 高斯光束等效的贝塞尔 - 高斯光束，并表明它们具有几乎相同的传播因子(M^2)。在(n\to\infty)的极限情况下，优美拉盖尔 - 高斯光束可与杜宁的贝塞尔光束等同。我们的结果提出了一种新的实验方法，可直接从稳定谐振器的输出中产生具有类无衍射特性的光束。
