Terahertz plasmonic waveguide based on metal rod arrays for nanofilm sensing

Borwen You, Chien Chun Peng, Jia Shing Jhang, Hungh Hsuan Chen, Chin Ping Yu, Wei-Chi Lai, Tze An Liu, Jin Long Peng, Ja-Yu Lu

研究成果: Article

19 引文 (Scopus)

摘要

A high-aspect-ratio metallic rod array is demonstrated to generate and propagate highly confined terahertz (THz) surface plasmonic waves under end-fire excitation. The transverse modal power distribution and spectral properties of the bound THz plasmonic wave are characterized in two metallic rod arrays with different periods and in two configurations with and without attaching a subwavelength superstrate. The integrated metallic rod array-based waveguide can be used to sense the various thin films deposited on the polypropylene superstrate based on the phasesensitive mechanism. The sensor exhibits different phase detection sensitivities depending on the modal power immersed in the air gaps between the metallic rods. Deep-subwavelength SiO2 and ZnO nanofilms with an optical path difference of 252 nm, which is equivalent to ?/3968 at 0.300 THz, are used as analytes to test the integrated plasmonic waveguide. Analysis of the refractive index and thickness of molecular membranes indicates that the metallic rod array-based THz waveguide can integrate various biochip platforms for minute molecular detection, which is extremely less than the coherent length of THz waves.

原文English
頁(從 - 到)11340-11350
頁數11
期刊Optics Express
22
發行號9
DOIs
出版狀態Published - 2014 一月 1

指紋

rods
waveguides
metals
distribution (property)
high aspect ratio
optical paths
polypropylene
surface waves
platforms
refractivity
membranes
sensors
air
thin films
configurations
excitation

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

引用此文

You, Borwen ; Peng, Chien Chun ; Jhang, Jia Shing ; Chen, Hungh Hsuan ; Yu, Chin Ping ; Lai, Wei-Chi ; Liu, Tze An ; Peng, Jin Long ; Lu, Ja-Yu. / Terahertz plasmonic waveguide based on metal rod arrays for nanofilm sensing. 於: Optics Express. 2014 ; 卷 22, 編號 9. 頁 11340-11350.
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abstract = "A high-aspect-ratio metallic rod array is demonstrated to generate and propagate highly confined terahertz (THz) surface plasmonic waves under end-fire excitation. The transverse modal power distribution and spectral properties of the bound THz plasmonic wave are characterized in two metallic rod arrays with different periods and in two configurations with and without attaching a subwavelength superstrate. The integrated metallic rod array-based waveguide can be used to sense the various thin films deposited on the polypropylene superstrate based on the phasesensitive mechanism. The sensor exhibits different phase detection sensitivities depending on the modal power immersed in the air gaps between the metallic rods. Deep-subwavelength SiO2 and ZnO nanofilms with an optical path difference of 252 nm, which is equivalent to ?/3968 at 0.300 THz, are used as analytes to test the integrated plasmonic waveguide. Analysis of the refractive index and thickness of molecular membranes indicates that the metallic rod array-based THz waveguide can integrate various biochip platforms for minute molecular detection, which is extremely less than the coherent length of THz waves.",
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You, B, Peng, CC, Jhang, JS, Chen, HH, Yu, CP, Lai, W-C, Liu, TA, Peng, JL & Lu, J-Y 2014, 'Terahertz plasmonic waveguide based on metal rod arrays for nanofilm sensing', Optics Express, 卷 22, 編號 9, 頁 11340-11350. https://doi.org/10.1364/OE.22.011340

Terahertz plasmonic waveguide based on metal rod arrays for nanofilm sensing. / You, Borwen; Peng, Chien Chun; Jhang, Jia Shing; Chen, Hungh Hsuan; Yu, Chin Ping; Lai, Wei-Chi; Liu, Tze An; Peng, Jin Long; Lu, Ja-Yu.

於: Optics Express, 卷 22, 編號 9, 01.01.2014, p. 11340-11350.

研究成果: Article

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AU - Peng, Chien Chun

AU - Jhang, Jia Shing

AU - Chen, Hungh Hsuan

AU - Yu, Chin Ping

AU - Lai, Wei-Chi

AU - Liu, Tze An

AU - Peng, Jin Long

AU - Lu, Ja-Yu

PY - 2014/1/1

Y1 - 2014/1/1

N2 - A high-aspect-ratio metallic rod array is demonstrated to generate and propagate highly confined terahertz (THz) surface plasmonic waves under end-fire excitation. The transverse modal power distribution and spectral properties of the bound THz plasmonic wave are characterized in two metallic rod arrays with different periods and in two configurations with and without attaching a subwavelength superstrate. The integrated metallic rod array-based waveguide can be used to sense the various thin films deposited on the polypropylene superstrate based on the phasesensitive mechanism. The sensor exhibits different phase detection sensitivities depending on the modal power immersed in the air gaps between the metallic rods. Deep-subwavelength SiO2 and ZnO nanofilms with an optical path difference of 252 nm, which is equivalent to ?/3968 at 0.300 THz, are used as analytes to test the integrated plasmonic waveguide. Analysis of the refractive index and thickness of molecular membranes indicates that the metallic rod array-based THz waveguide can integrate various biochip platforms for minute molecular detection, which is extremely less than the coherent length of THz waves.

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