Electromagnetic Composite-Based Reflecting Terahertz Waveplates

Andrew Strikwerda, Richard D. Averitt, Kebin Fan, Xin Zhang, Grace D. Metcalfe, Michael Wraback

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We have created a low profile, high efficiency half waveplate for operation at terahertz (THz) frequencies. The waveplate is a periodic gold/polyimide composite with a physical thickness of λ/10. Our reflection based waveplate has an intensity throughput of 80% at the design frequency of 350 GHz. This is quite high in comparison to transmissive THz components which typically suffer a large insertion loss due to Fresnel reflections. Simulations suggest a halfwave rotation of over 99% of the reflected THz radiation from 320 – 372 GHz. Experiments at 350 GHz confirm the basic operation of our electromagnetic composite as a functional half waveplate.
Original languageEnglish
JournalInternational Journal of High Speed Electronics and Systems
Volume20
Issue number3
Pages (from-to)583-588
ISSN0129-1564
DOIs
Publication statusPublished - 2011
Externally publishedYes

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