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Cetnar JS, Vangala S, Zhang W, et al. High extinction ratio terahertz wire-grid polarizers with connecting bridges on quartz substrates. Opt Lett. 2017;42(5):955-958doi: 10.1364/OL.42.000955.
Cetnar, J. S., Vangala, S., Zhang, W., Pfeiffer, C., Brown, E. R., & Guo, J. (2017). High extinction ratio terahertz wire-grid polarizers with connecting bridges on quartz substrates. Optics letters, 42(5), 955-958. https://doi.org/10.1364/OL.42.000955
Cetnar, John S, et al. "High extinction ratio terahertz wire-grid polarizers with connecting bridges on quartz substrates." Optics letters vol. 42,5 (2017): 955-958. doi: https://doi.org/10.1364/OL.42.000955
Cetnar JS, Vangala S, Zhang W, Pfeiffer C, Brown ER, Guo J. High extinction ratio terahertz wire-grid polarizers with connecting bridges on quartz substrates. Opt Lett. 2017 Mar 01;42(5):955-958. doi: 10.1364/OL.42.000955. PMID: 28248340.
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Opt Lett. 2017 Mar 01;42(5):955-958. doi: 10.1364/OL.42.000955.

High extinction ratio terahertz wire-grid polarizers with connecting bridges on quartz substrates.

Optics letters

John S Cetnar, Shivashankar Vangala, Weidong Zhang, Carl Pfeiffer, Elliott R Brown, Junpeng Guo

PMID: 28248340 DOI: 10.1364/OL.42.000955

Abstract

A terahertz (THz) wire-grid polarizer with metallic bridges on a quartz substrate was simulated, fabricated, and tested. The device functions as a wide-band polarizer to incident THz radiation. In addition, the metallic bridges permit the device to function as a transparent electrode when a DC bias is applied to it. Three design variations of the polarizer with bridges and a polarizer without bridges were studied. Results show the devices with bridges have average s-polarization transmittance of less than -3  dB and average extinction ratios of approximately 40 dB across a frequency range of 220-990 GHz and thus are comparable to a polarizer without bridges.

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