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Withawat Withayachumnankul
Researcher at University of Adelaide
Publications - 251
Citations - 9028
Withawat Withayachumnankul is an academic researcher from University of Adelaide. The author has contributed to research in topics: Terahertz radiation & Metamaterial. The author has an hindex of 43, co-authored 231 publications receiving 6936 citations. Previous affiliations of Withawat Withayachumnankul include King Mongkut's Institute of Technology Ladkrabang & RMIT University.
Papers
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Ultrasensitive terahertz sensing with high-Q Fano resonances in metasurfaces
TL;DR: In this paper, a planar terahertz metamaterial was used for ultra-sensitive sensing in the fingerprint region of the tera-hertz regime, where the low-loss quadrupole and Fano resonances with extremely narrow linewidths were used to measure the minute spectral shift caused due to the smallest change in the refractive index of the surrounding media.
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High-Sensitivity Metamaterial-Inspired Sensor for Microfluidic Dielectric Characterization
TL;DR: In this article, a metamaterial-inspired microwave microfluidic sensor is proposed, where the main part of the device is a microstrip coupled complementary split-ring resonator (CSRR), and the liquid sample flowing inside the channel modifies the resonance frequency and peak attenuation of the CSRR resonance.
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Ultrasensitive THz sensing with high-Q Fano resonances in metasurfaces
TL;DR: In this article, a planar terahertz metamaterial has been used for ultra-sensitive sensing with high quality factor resonances in order to measure the minute spectral shift caused by the smallest change in the refractive index of the surrounding media.
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Metamaterial-based microfluidic sensor for dielectric characterization
Withawat Withayachumnankul,Kata Jaruwongrungsee,Adisorn Tuantranont,Christophe Fumeaux,Derek Abbott +4 more
TL;DR: In this article, a microfluidic sensor is implemented from a single split-ring resonator (SRR), a fundamental building block of electromagnetic metamaterials, which is capable of sensing liquid flowing in the channel with a cross-sectional area as small as (0.001 λ 0 ) 2.
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Metamaterials in the Terahertz Regime
TL;DR: The terahertz metamaterials are artificial composites that acquire their electromagnetic properties from embedded subwavelength metallic structures and can be engineered to take on arbitrary values, including those not appearing in nature.