Tunable terahertz plasmonic lenses based on semiconductor microslits

Meng Ku Chen; Yun Ching Chang; Chia En Yang; Yaohui Guo; John Mazurowski; Stuart Yin; Paul Ruffin; Christina Brantley; Eugene Edwards; Claire Luo

doi:10.1002/mop.25079

Tunable terahertz plasmonic lenses based on semiconductor microslits

Meng Ku Chen, Yun Ching Chang, Chia En Yang, Yaohui Guo, John Mazurowski, Stuart Yin, Paul Ruffin, Christina Brantley, Eugene Edwards, Claire Luo

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

A theoretical investigation of tunable terahertz (THz) plasmonic lenses on the basis of InSb microslits is presented. First, it is demonstrated that the surface plasmon polaritons propagating in an InSb microslit array with variant slit widths would face different phase retardations, which, by design, can produce a focusing wavefront. The extraordinary transmission of THz radiation through the InSb subwavelength slit array is also observed. Second, a method for tuning the focal lengths of InSb plasmonic lenses is proposed. The results in this article provide a potential way to realize a tunable terahertz plasmonic lens with high transmission, which can be applied to the application of rapid 3D z-scanning based THz imaging and sensing.

Original language	English (US)
Pages (from-to)	979-981
Number of pages	3
Journal	Microwave and Optical Technology Letters
Volume	52
Issue number	4
DOIs	https://doi.org/10.1002/mop.25079
State	Published - Apr 2010

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1002/mop.25079

Cite this

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abstract = "A theoretical investigation of tunable terahertz (THz) plasmonic lenses on the basis of InSb microslits is presented. First, it is demonstrated that the surface plasmon polaritons propagating in an InSb microslit array with variant slit widths would face different phase retardations, which, by design, can produce a focusing wavefront. The extraordinary transmission of THz radiation through the InSb subwavelength slit array is also observed. Second, a method for tuning the focal lengths of InSb plasmonic lenses is proposed. The results in this article provide a potential way to realize a tunable terahertz plasmonic lens with high transmission, which can be applied to the application of rapid 3D z-scanning based THz imaging and sensing.",

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AU - Chen, Meng Ku

AU - Chang, Yun Ching

AU - Yang, Chia En

AU - Guo, Yaohui

AU - Mazurowski, John

AU - Yin, Stuart

AU - Ruffin, Paul

AU - Brantley, Christina

AU - Edwards, Eugene

AU - Luo, Claire

PY - 2010/4

Y1 - 2010/4

N2 - A theoretical investigation of tunable terahertz (THz) plasmonic lenses on the basis of InSb microslits is presented. First, it is demonstrated that the surface plasmon polaritons propagating in an InSb microslit array with variant slit widths would face different phase retardations, which, by design, can produce a focusing wavefront. The extraordinary transmission of THz radiation through the InSb subwavelength slit array is also observed. Second, a method for tuning the focal lengths of InSb plasmonic lenses is proposed. The results in this article provide a potential way to realize a tunable terahertz plasmonic lens with high transmission, which can be applied to the application of rapid 3D z-scanning based THz imaging and sensing.

AB - A theoretical investigation of tunable terahertz (THz) plasmonic lenses on the basis of InSb microslits is presented. First, it is demonstrated that the surface plasmon polaritons propagating in an InSb microslit array with variant slit widths would face different phase retardations, which, by design, can produce a focusing wavefront. The extraordinary transmission of THz radiation through the InSb subwavelength slit array is also observed. Second, a method for tuning the focal lengths of InSb plasmonic lenses is proposed. The results in this article provide a potential way to realize a tunable terahertz plasmonic lens with high transmission, which can be applied to the application of rapid 3D z-scanning based THz imaging and sensing.

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Tunable terahertz plasmonic lenses based on semiconductor microslits

Abstract

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