Tunable terahertz Bessel beams with orbital angular momentum

被引：5
|
作者：
Miyamoto, Katsuhiko [1 ,2 ]
Nomura, Riku [1 ]
Tsurumaru, Shohei [1 ]
Omatsu, Takashige [1 ,2 ]
机构：
[1] Chiba Univ, Grad Sch Engn, I-33 Yayoi cho,Inage Ku, Chiba 2638522, Japan
[2] Chiba Univ, Mol Chiral Res Ctr, 1-33 Yayoi cho,Inage Ku, Chiba 2638522, Japan
来源：
OPTICS CONTINUUM | 2022年 / 1卷 / 04期
基金：
日本学术振兴会;
关键词：
PERFECT VORTEX BEAM; OPTICAL VORTEX; GENERATION; DIFFRACTION; LIGHT; TRANSFORMATION; DYNAMICS;
D O I：
10.1364/OPTCON.452881
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this work we demonstrate a frequency-tunable terahertz (THz) Bessel beam with zero-and first-order modes and orbital angular momentum, by utilizing a Tsurupica Axicon lens in combination with a picosecond difference frequency generation laser. This system enabled the selective generation of zero-or first-order THz Bessel beams with frequency-tunability across the range 3???7 THz.
引用
收藏
页码：633 / 640
页数：8
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