Terahertz beams
Abstract
We have generated freely propagating, diffraction-limited beams of single-cycle 0.5 THz electromagnetic pulses from a 5-mm-diam coherent source. After propagating 100 cm in air, there was little change in the measured subps pulse shape, even though the signal strength was reduced by 20 times compared to the strength at 10 cm.
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The interferometric approach determines the delay-line position with a precision of 1.1 fs.
“via an interferometric approach determining the delay-line position with a precision of 1.1 fs [10]”
From Electronic phase detection with a sub-10 fs timing jitter for terahertz time-domain spectroscopy systems (2023) · cites this paper as [10]
Due to inertia of delay-line mechanical components, scan rates are usually limited to below 50 Hz.
“due to the inertia of the delay-line's mechanical components, the scan rates are usually limited to below 50 Hz [10].”
From Electronic phase detection with a sub-10 fs timing jitter for terahertz time-domain spectroscopy systems (2023) · cites this paper as [10]
External delay lines can be controlled and monitored with sub-2 fs accuracy via interferometric measurement techniques.
“Traditionally, this has been realized through the use of external delay lines that can be controlled and monitored with sub-2 fs accuracy via interferometric measurement techniques [10].”
From Electronic phase detection with a sub-10 fs timing jitter for terahertz time-domain spectroscopy systems (2023) · cites this paper as [10]
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Self-citationTerahertz spectroscopy and imaging - Modern techniques and applications
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A reliable method for extraction of material parameters in terahertz time-domain spectroscopy
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Terahertz time-domain spectroscopy
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Intense ultrashort terahertz pulses: generation and applications
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Nondestructive analysis of tablet coating thicknesses using terahertz pulsed imaging
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- Authors
- Fattinger, C., & Grischkowsky, D.
- Affiliations
- IBM Research - Thomas J. Watson Research Center (US)
- ORCID
- Grischkowsky, D.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 1989-02-06
- Volume
- 54
- Issue
- 6
- Pages
- 490-492
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W4246280447
- Cited by
- 417
- References
- 1
- Citations by year
- 2026: 13 · 2025: 8 · 2024: 10 · 2023: 20 · 2022: 10 · 2021: 22 · 2020: 13 · 2019: 11 · 2018: 15 · 2017: 16 · 2016: 12 · 2015: 7 · 2014: 14 · 2013: 15 · 2012: 16
- FWCI
- 11.81
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Applied Physics Letters (publishedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Terahertz technology and applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Gyrotron and Vacuum Electronics Research
- Keywords
- terahertz radiation, single-cycle pulses, diffraction-limited beam, free-space propagation, coherent terahertz sources
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