Generation and field-resolved detection of femtosecond electromagnetic pulses tunable up to 41 THz
Abstract
Bandwidth-limited infrared pulses as short as 50 fs are generated in thin GaSe crystals by phase-matched optical rectification of 10 fs laser pulses. The central frequency of the transients is continuously tunable over a wide interval extending from 41 THz (λ=7 μm) to the far-infrared. The electric field of the THz transients is directly monitored via ultrabroadband free-space electro-optic sampling. A simulation of the spectra based on a plane-wave model shows excellent agreement with the experiment.
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The approaches summarised here are equally applicable to mid-infrared and visible time-domain spectroscopic methods that use electro-optic sampling (or similar approaches) to uncover the electric field of light pulses.
“Although we presented and validated our methods using data from THz time-domain spectroscopy, the approaches summarised here are equally applicable to mid-infrared and visible time-domain spectroscopic methods that use electro-optic sampling (or similar approaches) to uncover the electric field of light pulses [2-4].”
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 [2]
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- Authors
- Huber, R., Brodschelm, A., Tauser, F., & Leitenstorfer, A.
- Affiliations
- Technical University of Munich (DE)
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2000-05-29
- Volume
- 76
- Issue
- 22
- Pages
- 3191-3193
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2010223845
- Cited by
- 413
- References
- 26
- Citations by year
- 2026: 2 · 2025: 7 · 2024: 6 · 2023: 17 · 2022: 12 · 2021: 15 · 2020: 25 · 2019: 22 · 2018: 13 · 2017: 17 · 2016: 15 · 2015: 11 · 2014: 14 · 2013: 15 · 2012: 21
- FWCI
- 23.78
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Applied Physics Letters (publishedVersion)
- University of Regensburg Publication Server (University of Regensburg) (submittedVersion)
- 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 › Advanced Fiber Laser Technologies
- Keywords
- optical rectification, GaSe crystal, terahertz generation, phase matching, transform-limited pulses, plane wave model
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