金属孔阵列转换太赫兹波前的直接观测

2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) Pub Date : 2015-11-12 DOI:10.1109/IRMMW-THZ.2015.7327817

S. Hisatake, Hai Huy Nguyen Pham, T. Nagatsuma

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引用次数: 4

摘要

通过对连续波太赫兹(THz)场的可视化，实验观察了金属孔阵列(MHA)的波前转换。在MHA的谐振频率下，喇叭天线发射的太赫兹波(125千兆赫)的弯曲波前被转换为平面波前。在MHA表面(传输侧)的近场可视化显示，从MHA重新发射的场在相位上振荡。实验证实了MHA作为平面太赫兹波准直器的作用。

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Direct observation of terahertz wavefront converted by a metal hole array

Wavefront conversion by a metal hole array (MHA) has been experimentally observed via a visualization of the continuous-wave terahertz (THz) field. At the resonant frequency of the MHA, curved wavefront of the THz wave (125 GHz) emitted from a horn antenna has been converted to a plane wavefront. Near field visualization at the MHA surface (transmission side) revealed that the field re-emitted from the MHA oscillates in phase. We experimentally confirmed that the MHA acts as a planar THz wave collimator.

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2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)

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