Application of metal-clad antiresonant reflecting hollow waveguides to tunable terahertz notch filter

Ja Yu Lu, Hao Zai Chen, Chih Hsien Lai, Hung Chun Chang, Borwen You, Tze An Liu, Jin Long Peng

研究成果: Article同行評審

8 引文 斯高帕斯(Scopus)

摘要

A novel tunable terahertz notch filter is demonstrated using antiresonant reflecting hollow waveguides with movable metal layers outside dielectric claddings. Based on the Fabry-Pérot resonance of the dielectric cladding, multiple deep notches are observed in a broad THz transmission spectrum. Continuous shift of notch frequencies is for the first time experimentally observed by lateral translation of metal layers from dielectric claddings. The measured maximum frequency-tuning-range approached 60GHz, equaling to 50% of the bandwidth of every passband, and a 20dB rejection notch-depth with a linewidth as narrow as 6GHz at frequency of around 0.2THz was also achieved. Numerical simulations match the measurements and verify the spectral-tuning mechanism.

原文English
頁(從 - 到)162-167
頁數6
期刊Optics Express
19
發行號1
DOIs
出版狀態Published - 2011 一月 3

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學

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