Department of Applied Mathematics, University of Crete, Heraklion, Crete, Greece.
Opt Lett. 2011 Sep 15;36(18):3675-7. doi: 10.1364/OL.36.003675.
We demonstrate analytically and experimentally that a circular abruptly autofocusing (AAF) Airy beam can be generated by Fourier-transforming an appropriately apodized Bessel beam whose radial oscillations are chirped by a cubic phase term. Depending on the relation between the chirp rate and the focal distance of the Fourier-transforming lens, it is possible to generate AAF beams with one or two foci, the latter case leading to the formation of an elegant paraboloid optical bottle.
我们通过理论分析和实验证明，通过傅里叶变换具有适当变迹的贝塞尔光束，可以产生圆形自聚焦（AAF）艾里光束，其中的径向振荡受到三次相位项的啁啾。根据啁啾率与傅里叶变换透镜焦距之间的关系，可以产生一个或两个焦点的 AAF 光束，后一种情况会导致形成优雅的抛物面光学瓶。
