Near-field scanning terahertz spectroscopy of plasmonic surface waves

Weili Zhang; Ruxue Wei; Soren Petersen; Jasmine Taplin

doi:10.1117/12.3013012

10 June 2024 Near-field scanning terahertz spectroscopy of plasmonic surface waves

Weili Zhang, Ruxue Wei, Soren Petersen, Jasmine Taplin

Proceedings Volume 13026, Next-Generation Spectroscopic Technologies XVI; 130260A (2024) https://doi.org/10.1117/12.3013012
Event: SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States

Abstract

Terahertz plasmonic surface waves have attracted enormous attention even since the observation of extraordinary transmission of the terahertz waves in a periodic metallic array of subwavelength apertures. Quantitative analysis of the near-field behavior and contribution of surface plasmons to the transmission enhancement still remains challenging. By use of near-field scanning terahertz microscopy and numerical simulation, we study launching, propagation, and focusing of plasmonic surface waves with an ultimate goal of in-depth understanding the near-field characteristics of plasmonic terahertz surfaces waves.

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Citation Download Citation

Weili Zhang, Ruxue Wei, Soren Petersen, and Jasmine Taplin "Near-field scanning terahertz spectroscopy of plasmonic surface waves", Proc. SPIE 13026, Next-Generation Spectroscopic Technologies XVI, 130260A (10 June 2024); https://doi.org/10.1117/12.3013012

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KEYWORDS

Plasmonics

Surface plasmons

Near field

Near field scanning optical microscopy

Terahertz radiation

Terahertz spectroscopy

Metals

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