Double Wire-Grid Terahertz Polarizer on Low-Loss Polymer Substrates
TIAN Dong-Bin1, ZHANG Huai-Wu1, LAI Wei-En1, WEN Qi-Ye1, SONG Yuan-Qiang1, WANG Zhi-Guo2
sup>1State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Microelectronic and Solid-state Electronic, University of Electronic Science and Technology of China, Chengdu 610054 2Department of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054
Double Wire-Grid Terahertz Polarizer on Low-Loss Polymer Substrates
TIAN Dong-Bin1, ZHANG Huai-Wu1, LAI Wei-En1, WEN Qi-Ye1, SONG Yuan-Qiang1, WANG Zhi-Guo2
sup>1State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Microelectronic and Solid-state Electronic, University of Electronic Science and Technology of China, Chengdu 610054 2Department of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054
摘要A double-wire-grid polarizer was fabricated on both sides of a low-loss polythene film by simple electroplating and photolithographic micro-processing techniques. The performances of the polarizer were measured using a terahertz time-domain spectrometer (THz-TDS). The transmittance is more than 70% and below 2% in the parallel and perpendicular directions of the polarizer, respectively. The extinction ratio is better than 22 dB in the broad frequency range of 0.5-3 THz, which is higher than the conventional free-standing polarizer in the high frequency region.
Abstract：A double-wire-grid polarizer was fabricated on both sides of a low-loss polythene film by simple electroplating and photolithographic micro-processing techniques. The performances of the polarizer were measured using a terahertz time-domain spectrometer (THz-TDS). The transmittance is more than 70% and below 2% in the parallel and perpendicular directions of the polarizer, respectively. The extinction ratio is better than 22 dB in the broad frequency range of 0.5-3 THz, which is higher than the conventional free-standing polarizer in the high frequency region.
[1] Tonouchi M 2007 Nature 1 86
[2] Withayachumnankul W, Png G M, Yin X X, Atakaramians S, Jones I L, Ung H Y S Y, Balakrishnan J, Ng B W H, Ferguson B, Mickan S P, Fischer B M and Abbott D 2007 Proc. IEEE 95 1528
[3] Chan W L, Deibel J and Mittleman D M 2007 Rep. Prog. Phys. 70 1325
[4] Melo A M, Kornberg M A, Kaufmann P, Piazzetta M H, Bortolucci E C, Zakia M B, Bauer O H, Poglitsch A and Silva P A D 2008 Appl. Opt. 47 6064
[5] Rockstuhl C and Zhang W l 2009 Nature Photon. 3 130
[6] Chen H T, Padilla W J, Cich M J, Azad A K, Averitt R D and Taylor A J 2009 Nature Photon. 3 148
[7] Pang Y T, Meng G W, Shan W J, Fang Q and Zhang L D 2003 Chin. Phys. Lett. 20 144
[8] Hsieh C F, Lai Y C, Pan R P and Pan C L 2008 Opt. Lett. 33 1174
[9] Zhang C, Qiao F, Wan J and Zi J 2001 Chin. Phys. Lett. 18 1082
[10] Yamada I, Takano K, Hangyo M, Saito M and Watanabe W 2009 Opt. Lett. 34 274
[11] Costley A E, Hursey K H, Neill G F and Ward A J M 1977 J. Opt. Soc. Am. 67 979
[12] Ma Y, Khalid A, Drysdale T D and Cumming D R S 2009 Opt. Lett. 34 1555
[13] Lee Y S 2009 Principles of Terahertz Science and Technology (New York: Springer)
[14] Buckley R and Berini P 2009 Opt. Lett. 34 223
[15] Huang W P 1994 J. Opt. Soc. Am. A 11 963
[16] Sarukura N, Ohtake H, Izumida S and Liu Z J 1998 Appl. Phys. 84 654.
[17] Ordal M A, Bell R J, Alexander J R W, Long L L and Querry M R 1985 Appl. Opt. 24 4493
[18] Maier S A 2007 Plasmonics-Fundamentals and Applications (New York: Springer)
[19] Garcia-Vidal F J, Lezec H J, Ebbesen T W and Martin-Moreno L 2003 Phys. Rev. Lett. 90 213901
[20] Hooper I R and Sambles J R 2004 Phys. Rev. B 70 045421
[21] Challener W A, Richards P L and Zilio S C 1980 Infrared Phys. 20 215
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