Journal Article

Electrically Controlled Room Temperature Terahertz Phase Shifter With Liquid Crystal

IEEE Microwave and Wireless Components Letters (2004) 14(2) 77-79
DOI: 10.1109/LMWC.2003.819958
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Abstract

We present the use of electrically controlled birefringence in a nematic liquid crystal cell for phase shifting of electromagnetic waves up to terahertz frequencies. This device was operated at room temperature and a maximum phase shift of 4.07° was demonstrated at 1.07 THz when the interaction length was 38.6 μm. The driving voltage and corresponding field were 176.8 V (rms) and 589.3 V/cm, respectively.

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Tsai, T. R., Chen, C. Y., Pan, R. P., Pan, C. L., & Zhang, X. C. (2004). Electrically Controlled Room Temperature Terahertz Phase Shifter With Liquid Crystal. IEEE Microwave and Wireless Components Letters, 14(2), 77–79. https://doi.org/10.1109/LMWC.2003.819958

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