Adiabatic compression of parallel-plate metal waveguides for sensitivity enhancement of waveguide THz time-domain spectroscopy
Open accessAbstract
We demonstrate the efficient coupling of THz pulses into and out of an adiabatically compressed parallel-plate metal waveguide. The plate separation of the 63.5-mm long, compressed waveguide was fixed at 103μm at the entrance and exit ends for efficient coupling, but could be reduced in the middle. The experimental results show strong transmission of the THz signal through the compressed waveguide for a minimum midpoint separation of only 8μm. This technique can be used to achieve efficient coupling together with higher sensitivity for waveguide THz-TDS.
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High coupling efficiency results from the beam pattern changing adiabatically, slowly varying with respect to wavelength.
“The high efficiency coupling is due to the beam pattern changing adiabatically, i. e., slowly varying with respect to the wavelength.8”
From Highly sensitive terahertz measurement of layer thickness using a two-cylinder waveguide sensor (2010) · cites this paper as [8]
Waveguide geometries using slowly varying metal surfaces have recently drawn interest in the terahertz range.
“Waveguide geometries based on slowly varying metal surfaces have recently attracted interest in the THz range.[8][9][10][11][12][13]”
From Highly sensitive terahertz measurement of layer thickness using a two-cylinder waveguide sensor (2010) · cites this paper as [8]
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Cites
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Self-citationTHz interconnect with low-loss and low-group velocity dispersion
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Cited by
Sorted by citations
Improvement of THz coupling using a tapered parallel-plate waveguide
Kim, S.-H., Lee, E. S., Ji, Y. B., & Jeon, T.-I. (2010) · Optics Express · doi:10.1364/oe.18.001289 · Cited by 80 · see citing works
Highly sensitive terahertz measurement of layer thickness using a two-cylinder waveguide sensor
Theuer, M., Beigang, R., & Grischkowsky, D. (2010) · Applied Physics Letters · doi:10.1063/1.3481080 · Cited by 38 · see citing works
Self-citationAdiabatic compression of terahertz waves using metal flares
Theuer, M., Beigang, R., & Grischkowsky, D. R. (2010) · Applied Physics Letters · doi:10.1063/1.3430740 · Cited by 24 · see citing works
Self-citation
- Authors
- Zhang, J., & Grischkowsky, D.
- Affiliations
- Oklahoma State University (US)
- ORCID
- Grischkowsky, D.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2005-02-02
- Volume
- 86
- Issue
- 6
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W1983421908
- Cited by
- 36
- References
- 13
- Citations by year
- 2024: 1 · 2021: 2 · 2020: 1 · 2019: 2 · 2018: 1 · 2016: 1 · 2015: 1 · 2014: 3 · 2013: 3 · 2012: 3
- FWCI
- 0.32
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Applied Physics Letters (publishedVersion)
- SHAREOK (University of Oklahoma; Oklahoma State University; Central Oklahoma University) (acceptedVersion, other-oa)
- SHAREOK (University of Oklahoma; Oklahoma State University; Central Oklahoma University) (submittedVersion, other-oa)
- Funders
- National Science Foundation
- U.S. Department of Energy
- Army Research Office
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Terahertz technology and applications
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Superconducting and THz Device Technology
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Microwave Engineering and Waveguides
- Keywords
- adiabatic compression, parallel-plate waveguide, metallic waveguides, terahertz time-domain spectroscopy, plate separation, sensitivity enhancement, waveguide propagation
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