Supercontinuum generation in a multi-plate medium

Cheng, Yu-Chen; Lu, Chun-Liang; Lin, Yuan-Yao; Kung, A. H.

doi:10.1364/oe.24.007224

Cited by 67 publications

(36 citation statements)

References 26 publications

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“…A different approach is to omit the waveguide and achieve spectral broadening at free propagation through a bulk dielectric [10][11][12][13]. This allows using peak powers well above the critical power for self-focusing, accessing the energy range 3-100 µJ.…”

Section: Introductionmentioning

confidence: 99%

Multi-pass-cell-based nonlinear pulse compression to 115 fs at 75 µJ pulse energy and 300 W average power

et al. 2017

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We demonstrate nonlinear pulse compression by multi-pass cell spectral broadening (MPCSB) from 860 fs to 115 fs with compressed pulse energy of 7.5 µJ, average power of 300 W and close to diffraction-limited beam quality. The transmission of the compression unit is >90%. The results show that this recently introduced compression scheme for peak powers above the threshold for catastrophic self-focusing can be scaled to smaller pulse energies and can achieve a larger compression factor than previously reported. Good homogeneity of the spectral broadening across the beam profile is verified, which distinguishes MPCSB among other bulk compression schemes.

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Section: Introductionmentioning

confidence: 99%

Multi-pass-cell-based nonlinear pulse compression to 115 fs at 75 µJ pulse energy and 300 W average power

et al. 2017

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“…For comparison, we assume that the 971 J input have a square aperture of 980 mm × 980 mm and the 1,358 J input has a linearly increased square aperture of 1160 mm × 1160 mm (for the same energy fluence), all with flat-top beams but different spectra. The input intensity at the fused silica thin wafer cannot be too high (lead to conical emission and even dielectric breakdown) or too low (weaken spectral broadening), and here it is kept at around 10 TW/cm 2 , because at this intensity the multiphoton-induced plasma density in fused silica is safely below the documented avalanche plasma density 57 . The spectrum of WNOPCPA is shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Simulating an ultra-broadband concept for Exawatt-class lasers

Kato

Kawanaka

2021

Sci Rep

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The rapid development of the optical-cycle-level ultra-fast laser technologies may break through the bottleneck of the traditional ultra-intense laser [i.e., Petawatt (PW, 1015 W) laser currently] and enable the generation of even higher peak-power/intensity lasers. Herein, we simulate an ultra-broadband concept for the realization of an Exawatt-class (EW, 1018 W) high peak-power laser, where the wide-angle non-collinear optical parametric chirped-pulse amplification (WNOPCPA) is combined with the thin-plate post-compression. A frequency-chirped carrier-envelope-phase stable super-continuum laser is amplified to high-energy in WNOPCPA by pumping with two pump-beamlets and injected into the thin-plate post-compression to generate a sub-optical-cycle high-energy laser pulse. The numerical simulation shows this hybrid concept significantly enhances the gain bandwidth in the high-energy amplifier and the spectral broadening in the post-compression. By using this concept, a study of a prototype design of a 0.5 EW system is presented, and several key challenges are also examined.

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“…Behind the focus another plate is placed into the divergent beam which will be refocused again by the self-focusing effect inside the next plate. As each plate can introduce a B-integral of 4-5 [54,55], a sequence of such refocusing thin plates can result in supercontinuum ( Figure 3(b)) and very large compression factors down to the singlecycle limit [56]. The downside of this technique is the poor energy scalability (sub-mJ regime), as it inherently relies on condensed materials with high nonlinearity, and a small amount of remaining spatial chirp of the output beam [57].…”

Section: Multiple-plate Continuum Generationmentioning

confidence: 99%

High-energy few-cycle pulses: post-compression techniques

Nagy

Simon

Veisz

2020

Advances in Physics: X

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Contemporary ultrafast science requires reliable sources of high-energy few-cycle light pulses. Currently two methods are capable of generating such pulses: post compression of short laser pulses and optical parametric chirped-pulse amplification (OPCPA). Here we give a comprehensive overview on the post-compression technology based on optical Kerr-effect or ionization, with particular emphasis on energy and power scaling. Relevant types of post compression techniques are discussed including free propagation in bulk materials, multiple-plate continuum generation, multi-pass cells, filaments, photonic-crystal fibers, hollow-core fibers and self-compression techniques. We provide a short theoretical overview of the physics as well as an in-depth description of existing experimental realizations of post compression, especially those that can provide few-cycle pulse duration with mJ-scale pulse energy. The achieved experimental performances of these methods are compared in terms of important figures of merit such as pulse energy, pulse duration, peak power and average power. We give some perspectives at the end to emphasize the expected future trends of this technology.

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Supercontinuum generation in a multi-plate medium

Cited by 67 publications

References 26 publications

Multi-pass-cell-based nonlinear pulse compression to 115 fs at 75 µJ pulse energy and 300 W average power

Multi-pass-cell-based nonlinear pulse compression to 115 fs at 75 µJ pulse energy and 300 W average power

Simulating an ultra-broadband concept for Exawatt-class lasers

High-energy few-cycle pulses: post-compression techniques

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