Transmission Properties of THz Radiation Pulses through Very Deep Zero-Order Metallic Gratings
XING Qi-Rong1,2, LI Shu-Xin1,2, ZHANG Wei-Li3, LANG Li-Ying1,2, MAO Fang-Lin1,2, XU Shi-Xiang1,2, CHAI Lu1,2, WANG Qing-Yue1,2
1Ultrafast Laser Laboratory, College of Precision Instrument & Optoelectronics Engineering,Tianjin University, Tianjin 300072
2Key Laboratory of Opto-electronics Information and Technical Science (Ministry of Education), Tianjin University, Tianjin 300072
3School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
Transmission Properties of THz Radiation Pulses through Very Deep Zero-Order Metallic Gratings
1Ultrafast Laser Laboratory, College of Precision Instrument & Optoelectronics Engineering,Tianjin University, Tianjin 300072
2Key Laboratory of Opto-electronics Information and Technical Science (Ministry of Education), Tianjin University, Tianjin 300072
3School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
Abstract： Very deep zero-order metallic grating structures are processed to study the transmission properties of THz radiation pulses. The experiments have been performed with two samples. The delay of the THz pulses and the corresponding resonantly enhanced transmission spectra through the samples are observed. To explain the extraordinary transmission we have treated the samples as Fabry--Perot resonators through resonant excitation of the coupled surface plasmon polaritons filled in the cavities between the metal slats. The experimental results are in reasonable agreement with the numerical simulation. Our results show that THz-time-domain spectroscopy may be an effective technique for studying the optical properties of various THz microstructured devices.
(Ultrafast processes; optical pulse generation and pulse compression)
引用本文:
XING Qi-Rong;LI Shu-Xin;ZHANG Wei-Li;LANG Li-Ying;MAO Fang-Lin;XU Shi-Xiang;CHAI Lu;WANG Qing-Yue;. Transmission Properties of THz Radiation Pulses through Very Deep Zero-Order Metallic Gratings[J]. 中国物理快报, 2005, 22(7): 1824-1824.
XING Qi-Rong, LI Shu-Xin, ZHANG Wei-Li, LANG Li-Ying, MAO Fang-Lin, XU Shi-Xiang, CHAI Lu, WANG Qing-Yue,. Transmission Properties of THz Radiation Pulses through Very Deep Zero-Order Metallic Gratings. Chin. Phys. Lett., 2005, 22(7): 1824-1824.
2005, Vol. 22 
