Logarithmic axicon characterized by scanning optical probe system.
Logarithmic axicon characterized by scanning optical probe system.
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DOI：
10.1364/ol.38.001603
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发表时间：
2013-05
期刊：
影响因子：
3.6
通讯作者：
Zhaolou Cao;Keyi Wang;Qinglin Wu
中科院分区：
文献类型：
--
作者：
Zhaolou Cao;Keyi Wang;Qinglin Wu
提出了一种用于亚波长分辨率对数轴棱镜(LA)测量的扫描光学测头系统。通过求解一个最优化问题来解释光纤探头测量的多个平面强度分布，从而得到LA的相位延迟函数(PRF)。实验结果表明，该方法可以准确地计算准无衍射光束在传输过程中的光程差。
A scanning optical probe system is proposed to measure a logarithmic axicon (LA) with subwavelength resolution. Multiple plane intensity profiles measured by a fiber probe are interpreted by solving an optimization problem to get the phase retardation function (PRF) of the LA. Experimental results show that this approach can accurately obtain the PRF with which the optical path difference of the generated quasi-nondiffracting beam in the propagation is calculated.