基于焦散線方法的自加速光束設(shè)計(jì)
[Abstract]:The self-accelerating beam represented by Ellie beam is a new kind of special beam which has the characteristic of bending propagation in free space. Due to their unique characteristics such as non-diffraction, self-acceleration and self-repair, this kind of beam is expected to be used in many fields, such as optical particle manipulation, laser micromachining, all-optical routing and super-resolution imaging. The design of self-accelerating beams that can propagate along different trajectories is a key problem in this field, because the Airie beam can only propagate along the path of parabola, which limits its flexibility in practical applications. The design of self-accelerating beam based on caustic line method is one of the effective ways to solve this problem. In this method, the designed propagation trajectory is associated with the optical caustic line, and the corresponding initial field distribution is constructed by analyzing the ray clusters needed to form the caustic line. Based on this principle and through continuous development, different types of self-accelerating beams can be realized one after another, and the design of self-accelerating beams in real space and Fourier space can also be realized with the help of Wigner function. It provides more possibilities for the application of self-accelerating beams. The principle and progress of self-accelerating beam design based on caustic line method are introduced in this paper.
【作者單位】: 中山大學(xué)電子與信息工程學(xué)院光電材料與技術(shù)國家重點(diǎn)實(shí)驗(yàn)室;布里斯托大學(xué)電氣與電子工程系;
【基金】:國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(批準(zhǔn)號(hào):2014CB340000) 國家自然科學(xué)基金(批準(zhǔn)號(hào):11690031,61323001,61490715,51403244) 廣州市科技計(jì)劃科學(xué)研究一般項(xiàng)目(批準(zhǔn)號(hào):2018) 中山大學(xué)高;究蒲袠I(yè)務(wù)費(fèi)青年教師重點(diǎn)培育項(xiàng)目(批準(zhǔn)號(hào):17lgzd06,16lgjc16,15lgpy04,15lgzs095,15lgjc25)資助的課題~~
【分類號(hào)】:O43
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