Generation of tunable narrow-band THz radiation from large aperture photoconducting antennas
Abstract
We report a novel technique for the generation of tunable narrow-band submillimeter wave electromagnetic radiation in free space. This is accomplished by mixing two linearly chirped optical pulses with a variable time delay on a biased large aperture GaAs photoconducting antenna. The center frequency of the THz radiation varies linearly with the delay between the two chirped pulses from dc to ∼1 THz.
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Multi-cycle THz pulses can be obtained from optical rectification, photoconductive antenna arrays, quantum cascade lasers, or free-electron lasers.
“Multi-cycle THz pulses can be obtained from optical rectification [19], photoconductive antenna arrays [20, 21], quantum cascade lasers [22], or free-electron lasers [23, 24].”
From A Tutorial on THz Pulse Analysis: Accurate Retrieval of Pulse Arrival Times, Spectral Energy Density and Absolute Spectral Phase (2025) · cites this paper as [21]
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Terahertz radiation from laser accelerated electron bunches
Leemans, W. P., van Tilborg, J., Faure, J., Geddes, C. G. R., Tóth, C., Schroeder, C. B., Esarey, E., Fubiani, G., & Dugan, G. (2004) · Physics of Plasmas · doi:10.1063/1.1652834 · Cited by 111 · see citing works
Powerful pulsed THz radiation from laser-accelerated relativistic electron bunches
Toth, C., van Tilborg, J., Geddes, C. G., Fubiani, G., Schroeder, C. B., Esarey, E., Faure, J., Dugan, G., & Leemans, W. P. (2004) · SPIE Proceedings · doi:10.1117/12.548945 · Cited by 7 · see citing works
Lloyd-Hughes, J., Chopra, N., Deveikis, J., Pandya, R., & Woolley, J. (2025) · Journal of Infrared, Millimeter, and Terahertz Waves · doi:10.1007/s10762-025-01052-w · Cited by 6 · see citing works
“The key requirement is knowledge of the pulse’s arrival time, T 0 , which we provide methods for determining in the next Section, along with a Fourier treatment of the properties of THz pulses.”
- Authors
- Weling, A. S., Hu, B. B., Froberg, N. M., & Auston, D. H.
- Affiliations
- Columbia University (US)
- ORCID
- Hu, B. B.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 1994-01-10
- Volume
- 64
- Issue
- 2
- Pages
- 137-139
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2094631761
- Cited by
- 134
- References
- 0
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 3 · 2023: 2 · 2022: 2 · 2021: 2 · 2020: 4 · 2019: 7 · 2018: 8 · 2017: 5 · 2016: 7 · 2015: 4 · 2014: 3 · 2013: 5 · 2012: 8
- FWCI
- 6.86
- 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 › Astronomy and Astrophysics › Superconducting and THz Device Technology
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
- Keywords
- terahertz generation, optical mixing, submillimeter waves, large-aperture antennas
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