Terahertz Filter Based on Frequency Selective Surfaces

Abstract:

Terahertz filters based on the frequency selective surfaces (FSS) structure have been modeled and fabricated on the sapphire substrate. The terahertz (THz) transmission properties are investigated using a THz time-domain spectroscopy (THz-TDS) system. The designed two FSS-based THz filters exhibit the THz electromagnetic wave transmission and reflection characteristics, respectively, showing about 70% change of THz transmission at the frequency of 1.3 THz. It is suggested that the THz filtering effect results from the resonance behavior between THz plane-wave and resonant elements of designed metallic FSS structures. The agreement between experiments and simulations indicate that the designed THz filter show a great potential application for high-speed THz modulator.

• Periodical: Advanced Materials Research (Volume 571)
• Pages: 362-366
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.571.362
• Online since: September 2012
• Authors: Xiao Yu Zhang, Zhong Xin Zheng, Xin Xing Li, Ren Bing Tan, Zhi Peng Zhang, Yu Zhou, Jian Dong Sun, Bao Shun Zhang, Hua Qin
• Keywords: Frequency Selective Surfaces, Terahertz Filter, Terahertz Time-Domain Spectrometry

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