Millimetre-wave Bessel beams using computer holograms
Millimetre-wave Bessel beams using computer holograms
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DOI：
10.1049/el:20010551
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发表时间：
2001-06-21
影响因子：
1.1
通讯作者：
Räisänen, AV
中科院分区：
文献类型：
--
作者：
Salo, J;Meltaus, J;Räisänen, AV
计算机生成的二元振幅全息图用于将 310 GHz 的球形相前初始高斯电磁场转换为非衍射贝塞尔光束。光束轮廓是在近场扫描仪的帮助下测量的。与光学区域中的情况相反，从生成的场中可以容易地获得幅度和相位信息。
A computer-generated binary amplitude hologram is used to transform an initial Gaussian electromagnetic field with spherical phase front at 310 GHz into a non-diffracting Bessel beam. The beam profile is measured with the help of a near field scanner. In contrast to the situation in the optical region, both amplitude and phase information is readily obtainable from the generated field.