Generation of radially polarized high energy mid-infrared optical vortex by use of a passive axially symmetric ZnSe waveplate
Generation of radially polarized high energy mid-infrared optical vortex by use of a passive axially symmetric ZnSe waveplate
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DOI：
10.1063/1.4929686
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发表时间：
2015-08
影响因子：
4
通讯作者：
T. Wakayama;H. Oikawa;Atsushi Sasanuma;Goki Arai;Yusuke Fujii;T. Dinh;T. Higashiguchi;K. Sakaue;M. Washio;T. Miura;A. Takahashi;D. Nakamura;T. Okada;M. Yonemura;Y. Otani
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文献类型：
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作者：
T. Wakayama;H. Oikawa;Atsushi Sasanuma;Goki Arai;Yusuke Fujii;T. Dinh;T. Higashiguchi;K. Sakaue;M. Washio;T. Miura;A. Takahashi;D. Nakamura;T. Okada;M. Yonemura;Y. Otani
利用无源轴对称硒化锌（ZnSe）高能量脉冲通量波片，在10.6 μm波长处产生了强径向偏振中红外光涡。偏振度为0.95的径向偏振光涡旋的相位在角度上呈螺旋状分布。在输入脉冲能量为4.9 mJ时，每脉冲可获得约2.6 mJ的转换激光束能量，能量转换效率为56%。
We demonstrated the generation of the intense radially polarized mid-infrared optical vortex at a wavelength of 10.6 μm by use of a passive axially symmetric zinc selenide (ZnSe) waveplate with high energy pulse throughput. The phase of the radially polarized optical vortex with the degree of polarization of 0.95 was spirally distributed in regard to the angle. The converted laser beam energy of about 2.6 mJ per pulse was obtained at the input pulse energy of 4.9 mJ, corresponding to the energy conversion efficiency of 56%.