Terahertz-slicing — an all-optical synchronization for 4th generation light sources
Open accessAbstract
A conceptually new approach to synchronizing accelerator-based light sources and external laser systems is presented. The concept is based on utilizing a sufficiently intense accelerator-based single-cycle terahertz pulse to slice a thereby intrinsically synchronized femtosecond-level part of a longer picosecond laser pulse in an electro-optic crystal. A precise synchronization of the order of 10 fs is demonstrated, allowing for real-time lock-in amplifier signal demodulation. We demonstrate successful operation of the concept with three benchmark experiments using a 4th generation accelerator-based terahertz light source, i.e. (i) far-field terahertz time-domain spectroscopy, (ii) terahertz high harmonic generation spectroscopy, and (iii) terahertz scattering-type scanning near-field optical microscopy.
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The TELBE source produced a THz beam with centre frequency 0.68THz, repetition rate R = 50kHz and an average power of around 32mW, corresponding to E_pulse = 0.65 μJ.
“The TELBE source produced a THz beam with centre frequency 0.68THz, repetition rate R = 50kHz and an average power of around 32mW, corresponding to E pulse = 0 . 65 μ J.”
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 [24]
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Two-dimensional gas of massless Dirac fermions in graphene
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Katsnelson, M. I., Grigorieva, I. V., Dubonos, S. V., & Firsov, A. A. (2005) · Nature · doi:10.1038/nature04233 · Cited by 21,611 · see citing works
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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.”
Influential
- Authors
- Chen, M., de Oliveira, T. V. A. G., Ilyakov, I., Nörenberg, T., Kuschewski, F., Deinert, J.-C., Awari, N., Ponomaryov, A., Kuntzsch, M., Kehr, S. C., Eng, L. M., Gensch, M., & Kovalev, S.
- ORCID
- Venue
- Optics Express
- Publisher
- Optica Publishing Group
- Published
- 2022-07-12
- Volume
- 30
- Issue
- 15
- Pages
- 26955
- ISSN
- 1094-4087 (ISSN-L)
- OpenAlex
- W4281754070
- Cited by
- 6
- References
- 1
- Citations by year
- 2025: 3 · 2024: 2 · 2023: 1
- FWCI
- 0.61
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Optics Express (publishedVersion)
- PubMed (publishedVersion)
- elib (German Aerospace Center) (acceptedVersion)
- Funders
- Deutsche Forschungsgemeinschaft (GE 3288/1-1, CRC1415, EXC 2147)
- Bundesministerium für Bildung und Forschung (05K16ODA, 05K16ODC, 05K19ODA, 05K19ODB)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Terahertz technology and applications
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Particle Accelerators and Free-Electron Lasers
- Keywords
- all-optical synchronization, accelerator-based light sources, single-cycle terahertz pulses, electro-optic crystals, terahertz time-domain spectroscopy, high harmonic generation, scanning near-field optical microscopy
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