Arbitrary linear THz wave polarization converter with cracked cross meta-surface

Han Sun; Lan Wang; Yaxin Zhang; Shixiong Liang; Jiaguang Han; Feng Lan; Xinlan Zhou; Ziqiang Yang

doi:doi:10.3788/COL201917.041602

Chinese Optics Letters, 2019, 17 (4): 041602, Published Online: Apr. 15, 2019

Arbitrary linear THz wave polarization converter with cracked cross meta-surface Download： 724次

Han Sun ¹Lan Wang ^1,*Yaxin Zhang ^1,**Shixiong Liang ²Jiaguang Han ³Feng Lan ¹Xinlan Zhou ¹Ziqiang Yang ¹

Author Affiliations

¹ Terahertz Science and Technology Research Center, University of Electronic Science and Technology of China, Chengdu 610054, China

² National Key Laboratory of Application Specific Integrated Circuit, Hebei Semiconductor Research Institute, Shijiazhuang 050051, China

³ Center for Terahertz Waves, College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Key Laboratory of Optoelectronic Information Technology, Ministry of Education, Tianjin 300072, China

Figures & Tables

Fig. 1. (a) Schematic of the sample used in the experiment. (b) A unit cell structure. (c) The photo of the manufactured top structure. (d) The photo of the manufactured bottom structure.

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Fig. 2. Spectra of the PCR ranging from 0° to 90°.

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Fig. 3. Electric field distribution on cracked cross meta-surface for incident $y$ -polarized waves at (a) 0.893 THz, (e) 0.95 THz. Electric field distribution on cracked cross meta-surface for incident $x$ -polarized waves at (b) 0.893 THz, (f) 0.95 THz. Surface current distribution on cracked cross meta-surface for incident $y$ -polarized waves at (c) 0.893 THz, (g) 0.95 THz. Surface current distribution on cracked cross meta-surface for incident $x$ -polarized waves at (d) 0.893 THz, (h) 0.95 THz.

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Fig. 4. (a) Schematic diagram of magnetic field coupling conversion. (b) Scheme of the multiple reflection–transmission processes of polarization. (c) Magnetic field in the direction of $x$ . (d) Magnetic field in the direction of $y$ .

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Fig. 5. (a) Schematic diagram of the THz-TDS test system. (b) Photo of THz-TDS test system. (c) Transmission when the THz wave is incident on the THz polarization converter in different polarization directions by experiment. (d) Comparison between the experiment and simulation.

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Han Sun, Lan Wang, Yaxin Zhang, Shixiong Liang, Jiaguang Han, Feng Lan, Xinlan Zhou, Ziqiang Yang. Arbitrary linear THz wave polarization converter with cracked cross meta-surface[J]. Chinese Optics Letters, 2019, 17(4): 041602.

Arbitrary linear THz wave polarization converter with cracked cross meta-surface Download： 724次

Fig. 1. (a) Schematic of the sample used in the experiment. (b) A unit cell structure. (c) The photo of the manufactured top structure. (d) The photo of the manufactured bottom structure.

Fig. 2. Spectra of the PCR ranging from 0° to 90°.

Fig. 4. (a) Schematic diagram of magnetic field coupling conversion. (b) Scheme of the multiple reflection–transmission processes of polarization. (c) Magnetic field in the direction of $x$ . (d) Magnetic field in the direction of $y$ .

Fig. 5. (a) Schematic diagram of the THz-TDS test system. (b) Photo of THz-TDS test system. (c) Transmission when the THz wave is incident on the THz polarization converter in different polarization directions by experiment. (d) Comparison between the experiment and simulation.

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Arbitrary linear THz wave polarization converter with cracked cross meta-surface Download： 724次

Fig. 1. (a) Schematic of the sample used in the experiment. (b) A unit cell structure. (c) The photo of the manufactured top structure. (d) The photo of the manufactured bottom structure.

Fig. 2. Spectra of the PCR ranging from 0° to 90°.

Fig. 4. (a) Schematic diagram of magnetic field coupling conversion. (b) Scheme of the multiple reflection–transmission processes of polarization. (c) Magnetic field in the direction of x. (d) Magnetic field in the direction of y.

Fig. 5. (a) Schematic diagram of the THz-TDS test system. (b) Photo of THz-TDS test system. (c) Transmission when the THz wave is incident on the THz polarization converter in different polarization directions by experiment. (d) Comparison between the experiment and simulation.

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Fig. 4. (a) Schematic diagram of magnetic field coupling conversion. (b) Scheme of the multiple reflection–transmission processes of polarization. (c) Magnetic field in the direction of $x$ . (d) Magnetic field in the direction of $y$ .