Liquid-crystal-based magnetically tunable terahertz achromatic quarter-wave plate

Cho Fan Hsieh, Chan Shan Yang, Fang Cih Shih, Ru Pin Pan, Ci Ling Pan

研究成果: 雜誌貢獻期刊論文同行評審

15 引文 斯高帕斯(Scopus)

摘要

Development of the wideband and tunable quasi-optic terahertz (THz) components is in high demand. In this work, we demonstrate a tunable achromatic quarter-wave plate (AQWP) for the THz frequency range. The phase retardation of this device can be set at 90° ± 9° from 0.20 to 0.50 THz. The operation range from 0.20 to 0.50 THz can be tuned to from 0.30 to 0.70 THz by introducing three nematic liquid crystals phase retarders, of which the birefringence can be magnetically tuned. The frequency-dependent phase retardation is in good agreement with theoretical predictions.

原文英語
頁(從 - 到)9933-9940
頁數8
期刊Optics Express
27
發行號7
DOIs
出版狀態已發佈 - 2019 4月 1

ASJC Scopus subject areas

  • 原子與分子物理與光學

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