Subwavelength biological spectroscopy and imaging with frequency-tunable terahertz plasmonic structures

Yukio Kawano

doi:10.1117/12.2568605

26 August 2020 Subwavelength biological spectroscopy and imaging with frequency-tunable terahertz plasmonic structures

Yukio Kawano

Proceedings Volume 11499, Terahertz Emitters, Receivers, and Applications XI; 1149912 (2020) https://doi.org/10.1117/12.2568605
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Abstract

We report on a frequency-tunable plasmonic structure for multi-frequency terahertz (THz) analysis on a sub-wavelength scale. In spite of much interest in plasmon-based THz technologies, a main shortcoming of conventional devices is that they exhibit poor frequency-tunability in fixed structures. We here demonstrated that the frequency of THz plasmonic resonance is continuously tunable according to the angle of polarization of the incident THz wave, which enhanced the flexibility in near-field THz applications. Biological and medical applications with this method are presented.

Conference Presentation

Citation Download Citation

Yukio Kawano "Subwavelength biological spectroscopy and imaging with frequency-tunable terahertz plasmonic structures", Proc. SPIE 11499, Terahertz Emitters, Receivers, and Applications XI, 1149912 (26 August 2020); https://doi.org/10.1117/12.2568605

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