Millimeter and terahertz wave absorption in a lossy conducting layer

Shen, M. K.; Chiang, W. Y.; Wu, K. L.; Chu, K. R.

doi:10.1063/1.4825147

Title: Millimeter and terahertz wave absorption in a lossy conducting layer

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Abstract

Relativistic electronics research in recent years has produced powerful millimeter waves on the MW level, while also extending the frequency range into the terahertz (THz) region and beyond. These developments have opened up new horizons in applications. The current study is motivated by the associated need for high-power absorbers not readily available at such frequencies. Our focus is on effective absorber schemes which can handle high power while also possessing a structural simplicity for easy implementation. In and above the THz region, the electrical conductivity can no longer be treated as a real constant. We begin with a derivation of the field penetration depth applicable to all frequencies. Requirements to meet the intended criteria are then determined from the wave penetration and reflection properties. Design examples in the 1–1000 GHz range are illustrated, which consist of a thin lossy conducting layer on the surface of a pyramidal shaped metal base. It is shown in theory that such structures can function effectively in the millimeter and THz regions.

Authors:

Shen, M. K.; Chiang, W. Y.; Wu, K. L.; Chu, K. R. ^[1]

Department of Physics, National Taiwan University, Taipei 106, Taiwan (China)

Publication Date:: Tue Oct 15 00:00:00 EDT 2013

OSTI Identifier:: 22218568

Resource Type:: Journal Article

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 20; Journal Issue: 10; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION; BOUNDARY LAYERS; ELECTRIC CONDUCTIVITY; GHZ RANGE; IMPLEMENTATION; METALS; PENETRATION DEPTH; REFLECTION; RELATIVISTIC RANGE; SURFACES; THZ RANGE

Citation Formats


                    Shen, M. K., Chiang, W. Y., Wu, K. L., and Chu, K. R. Millimeter and terahertz wave absorption in a lossy conducting layer.  United States: N. p., 2013. 
        Web.  doi:10.1063/1.4825147.

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                    Shen, M. K., Chiang, W. Y., Wu, K. L., & Chu, K. R. Millimeter and terahertz wave absorption in a lossy conducting layer.  United States.  https://doi.org/10.1063/1.4825147

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                    Shen, M. K., Chiang, W. Y., Wu, K. L., and Chu, K. R. 2013.  
        "Millimeter and terahertz wave absorption in a lossy conducting layer".  United States.  https://doi.org/10.1063/1.4825147.

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@article{osti_22218568,

  title        = {Millimeter and terahertz wave absorption in a lossy conducting layer},

  author       = {Shen, M. K. and Chiang, W. Y. and Wu, K. L. and Chu, K. R.},

  abstractNote = {Relativistic electronics research in recent years has produced powerful millimeter waves on the MW level, while also extending the frequency range into the terahertz (THz) region and beyond. These developments have opened up new horizons in applications. The current study is motivated by the associated need for high-power absorbers not readily available at such frequencies. Our focus is on effective absorber schemes which can handle high power while also possessing a structural simplicity for easy implementation. In and above the THz region, the electrical conductivity can no longer be treated as a real constant. We begin with a derivation of the field penetration depth applicable to all frequencies. Requirements to meet the intended criteria are then determined from the wave penetration and reflection properties. Design examples in the 1–1000 GHz range are illustrated, which consist of a thin lossy conducting layer on the surface of a pyramidal shaped metal base. It is shown in theory that such structures can function effectively in the millimeter and THz regions.},

  doi          = {10.1063/1.4825147},

  url          = {https://www.osti.gov/biblio/22218568},
  journal      = {Physics of Plasmas},

  issn         = {1070-664X},

  number       = 10,

  volume       = 20,

  place        = {United States},

  year         = {Tue Oct 15 00:00:00 EDT 2013},

  month        = {Tue Oct 15 00:00:00 EDT 2013}

}

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