Adiabatic compression of terahertz waves using metal flares
Open accessAbstract
We report on the adiabatic free-space coupling of broadband terahertz (THz) radiation through a subwavelength gap using metal flares. Amplitude coupling ratios better than 30% are obtained by optimizing the curvature. This scheme shows a large potential for increasing the sensitivity in THz spectroscopy using high spatial confinement without the need of transmission optics or high precision components. The intrinsic curvature of metal sheets is already sufficient to carry out experiments downsizing the microwave approach.
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The approach combines prior work on terahertz wave compression using metal flares with the sensing capabilities of terahertz surface waveguides.
“This approach combines our previous work on THz wave compression using metal flares 12 and the sensing capabilities of THz surface waveguides.13”
From Highly sensitive terahertz measurement of layer thickness using a two-cylinder waveguide sensor (2010) · cites this paper as [12]
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Cites
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Self-citationUndistorted guided-wave propagation of subpicosecond terahertz pulses
Mendis, R., & Grischkowsky, D. (2001) · Optics Letters · doi:10.1364/ol.26.000846 · Cited by 456 · see citing works
Self-citationGallot, G., Jamison, S. P., McGowan, R. W., & Grischkowsky, D. (2000) · Journal of the Optical Society of America B · doi:10.1364/josab.17.000851 · Cited by 438 · see citing works
Self-citationAbsorption coefficients of selected explosives and related compounds in the range of 0.1-2.8 THz
Chen, J., Chen, Y., Zhao, H., Bastiaans, G. J., & Zhang, X. (2007) · Optics Express · doi:10.1364/oe.15.012060 · Cited by 306 · see citing works
Waveguide terahertz time-domain spectroscopy of nanometer water layers
Zhang, J., & Grischkowsky, D. (2004) · Optics Letters · doi:10.1364/ol.29.001617 · Cited by 221 · see citing works
Self-citationComponent spatial pattern analysis of chemicals using terahertz spectroscopic imaging
Watanabe, Y., Kawase, K., Ikari, T., Ito, H., Ishikawa, Y., & Minamide, H. (2003) · Applied Physics Letters · doi:10.1063/1.1595132 · Cited by 140 · see citing works
Improvement of THz coupling using a tapered parallel-plate waveguide
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Self-citationSimulation and experiment of terahertz stand-off detection
Wohnsiedler, S., Theuer, M., Herrmann, M., et al. (2009) · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · doi:10.1117/12.808871 · Cited by 17 · see citing works
Self-citationSuperfocusing of surface polaritons in the system of two touching metallic semicylinders
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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-citation
- Authors
- Theuer, M., Beigang, R., & Grischkowsky, D. R.
- Affiliations
- Oklahoma State University (US)
- University of Kaiserslautern (DE)
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2010-05-10
- Volume
- 96
- Issue
- 19
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2076301510
- Cited by
- 24
- References
- 10
- Citations by year
- 2025: 1 · 2016: 1 · 2014: 1 · 2013: 1 · 2012: 3
- FWCI
- 5.30
- 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)
- Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft) (submittedVersion)
- Fraunhofer-Publica (Fraunhofer-Gesellschaft) (submittedVersion)
- SHAREOK (University of Oklahoma; Oklahoma State University; Central Oklahoma University) (submittedVersion, other-oa)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Terahertz technology and applications
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Metamaterials and Metasurfaces Applications
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Superconducting and THz Device Technology
- Keywords
- terahertz radiation, adiabatic compression, free-space coupling, broadband terahertz radiation, spatial confinement, metal sheets
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