Simultaneous spatio-temporal focusing with pulse front symmetrization

Dominik Kühn; Dominik Kühn; Alexander Treffer; Frank Wyrowski; Frank Wyrowski; Ruediger Grunwald

doi:10.1364/OL.449597

Optics Letters
Vol. 47,
Issue 4,
pp. 750-753
(2022)
•https://doi.org/10.1364/OL.449597

Simultaneous spatio-temporal focusing with pulse front symmetrization

Dominik Kühn, Alexander Treffer, Frank Wyrowski, and Ruediger Grunwald

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Dominik Kühn, Alexander Treffer, Frank Wyrowski, and Ruediger Grunwald, "Simultaneous spatio-temporal focusing with pulse front symmetrization," Opt. Lett. 47, 750-753 (2022)

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Abstract

Simultaneous spatio-temporal focusing of ultrashort pulses is usually performed by single-channel stretcher-compressor geometries where pulse front tilt leads to spatial asymmetry. Here, the basic approach is extended by superimposing two reciprocal sub-beams in a dual-channel stretcher-compressor setup. Spatio-temporal properties of the symmetrized focal zones of few-cycle near-infrared pulses are studied by parametric numerical simulations with physical optics software. Spatial modulations of focal zones depending on focusing conditions appear. Relationships to specific ultrafast interference phenomena are addressed.

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Supplementary Material (4)

Name	Description
Visualization 1	Visualization 1: Pulse symmetrization in a dual-channel simultaneous spatio-temporal focusing (SSTF) configuration. The movie shows the spatio-temporal evolution of the field amplitudes of two coherently superimposed partial beams at the focus region
Visualization 2	Visualization 2: Pulse symmetrization in a dual-channel simultaneous spatio-temporal focusing (SSTF) configuration. The movie shows spatio-spectral maps of the field amplitudes of two coherently superimposed partial beams at the focus region for an i
Visualization 3	Visualization 3: Propagation in temporal domain shown at smaller step width in z-direction (0.5 mm) for a transversal distance dM = 10 mm (focal distance f = 75 mm, covered z-depth: f-2 mm to f). Parameter fields: temporal interval 300 fs, transversa
Visualization 4	Visualization 4: Propagation in spectral domain shown at smaller step width in z-direction (0.5 mm) for a transversal distance dM = 10 mm (focal distance f = 75 mm, covered z-depth: f-2mm to f). Parameter fields: spectral range 650-1020 nm, transvers

Data availability

Data underlying the simulation results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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