Full-transparent zone plates for THz focusing

Hui Yin; Jiaqi Li; Huawei Liang; Min Zhang; Hong Su; Ireng Ling Li

doi:10.3788/COL201816.082601

Journals >Chinese Optics Letters >Volume 16 >Issue 8 >Page 082601 > Article

Chinese Optics Letters
Vol. 16, Issue 8, 082601 (2018)

Full-transparent zone plates for THz focusing

Hui Yin^1、2, Jiaqi Li^1、2, Huawei Liang^1、2、*, Min Zhang^1、2、**, Hong Su^1、2, and Ireng Ling Li^1、2

Author Affiliations

¹Shenzhen Key Laboratory of Laser Engineering, Shenzhen University, Shenzhen 518060, China

²Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, Shenzhen University, Shenzhen 518060, China

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DOI: 10.3788/COL201816.082601 Cite this Article Set citation alerts

Hui Yin, Jiaqi Li, Huawei Liang, Min Zhang, Hong Su, Ireng Ling Li. Full-transparent zone plates for THz focusing[J]. Chinese Optics Letters, 2018, 16(8): 082601 Copy Citation Text

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Fig. 1. Schematics of the (a) FZP and (b) FTZP.

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Dependence of the THz wave transmission on the substrate thickness. The peak intensity at the focal point for the focal length f=5 cm is shown by the point solid line, and the transmission rate is shown by the dashed line.

Fig. 2. Dependence of the THz wave transmission on the substrate thickness. The peak intensity at the focal point for the focal length f=5 cm is shown by the point solid line, and the transmission rate is shown by the dashed line.

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Fig. 3. THz field intensities on the longitudinal sections for the focusing of FTZPs: (a) f=4 cm, (b) f=5 cm, (c) f=6 cm; and FZPs: (d) f=4 cm, (e) f=5 cm, (f) f=6 cm.

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Fig. 4. (a) Experimental setup for the FTZP focusing. (b) FTZP sample.

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Fig. 5. Measured THz intensity distributions on the focal planes for FTZPs: (a) f=4 cm, (b) f=5 cm, (c) f=6 cm; and FZPs: (d) f=4 cm, (e) f=5 cm, (f) f=6 cm.

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Hui Yin, Jiaqi Li, Huawei Liang, Min Zhang, Hong Su, Ireng Ling Li. Full-transparent zone plates for THz focusing[J]. Chinese Optics Letters, 2018, 16(8): 082601

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