Velocity matching by pulse front tilting for large area THz-pulse generation.

By J. Hebling, G. Almási, I. Kozma, J. Kuhl. Optics Express, 2002

727 citations recorded by the source corpus.

We propose a generally applicable velocity matching method for THz-pulse generation by optical rectification in the range below the phonon frequency of the nonlinear material. Velocity matching is based on pulse front tilting of the ultrashort excitation pulse and is able to produce a large area THz beam. Tuning of the THz radiation by changing the tilt angle is experimentally demonstrated for a narrow line in the range between 0.8- 0.97 times the phonon frequency. According to model calculations broadband THz radiation can be generated at lower frequencies. Advantages of the new velocity matching technique in comparison to the electro-optic Cherenkov effect and non-collinear beam mixing are discussed.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/a92f4d7f53108ed38f67d7520ae2943839274e0a

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Matthias Hoffmann
2. Keith A. Nelson
3. K. Yeh
4. J. Hebling
5. K. Vodopyanov

In Electrical and Electronic Engineering

1. Matthias Hoffmann
2. Keith A. Nelson
3. K. Yeh
4. J. Hebling
5. K. Vodopyanov

Citations in the corpus

• Single-cycle terahertz pulses with amplitudes exceeding 1 MV/cm generated by optical rectification in LiNbO3 and applications to nonlinear optics (2011, unknown): “12 Since Hebling et al. (2002) proposed a tilted-pump-pulse-front scheme for efficient phase-matched THz pulse generation using LiNbO3 crystals,13 the technique has been rapidly developing.”
• SwissFEL: The Swiss X-ray Free Electron Laser (2017, background): “It is based on the tilted pulse front scheme in LiNbO3 [121] with a typical field strength of 100 kV/cm, centered at 0.5 THz [107].”
• Intense ultrashort terahertz pulses: generation and applications (2011, unknown): “Tilted-pulse-front pumping (TPFP) was proposed and demonstrated by Hebling et al in 2002 for efficient phasematched THz pulse generation in LN [82].”
• High-Power THz Generation, THz Nonlinear Optics, and THz Nonlinear Spectroscopy (2008, background): “grating and a lens to generate a continuous, tilted pulse front [28]–[30], see Fig.”
• Ultrafast Fiber Laser Technology (2009, unknown): “tion of the THz generation efficiency [187].”