Optical element for generation of accelerating Airy beams.
Optical element for generation of accelerating Airy beams.
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DOI：
10.1364/josaa.27.002344
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发表时间：
2010-10
期刊：
影响因子：
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通讯作者：
B. Yalizay;Burak Soylu;S. Akturk
中科院分区：
文献类型：
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作者：
B. Yalizay;Burak Soylu;S. Akturk
我们演示了一种用于产生加速艾里光束的光学元件。该元件由曲率半径相匹配的正、负圆柱形透镜组合而成。通过适当选择透镜曲率，得到的曲面轮廓符合三次多项式。将高斯光束通过该元件并进行光学傅里叶变换，得到接近Airy函数的光束轮廓。我们的实验证明了所产生的焦点的抛物线传播或加速度。
We demonstrate an optical element for generation of accelerating Airy beams. The element is conveniently constructed by combination of positive and negative cylindrical lenses of matching radii of curvature. With proper choice of lens curvatures, the resulting surface profile closely follows a cubic polynomial. Passing a gaussian beam through this element and performing optical Fourier transform yields beam profiles close to the Airy function. Our experiments demonstrate parabolic propagation, or acceleration, of the resulting focal spots.