Generation of few-cycle multi-millijoule 2.5 μm pulses from a single-stage Cr2+:ZnSe amplifier

Wu, Yi; Zhou, Fangjie; Larsen, Esben W.; Zhuang, Fengjiang; Yin, Yanchun; Chang, Zenghu

doi:10.1038/s41598-020-64330-8

Cited by 25 publications

(9 citation statements)

References 33 publications

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“…Especially, with the rapid development of attosecond physics and science, [368,369] few-, single-, and even suboptical-cycle, carrier-envelope phase-stable, near-or mid-infrared intense pulses have been generated worldwide and used as drivers for attosecond pulses, X-rays, gamma rays, particle accelerators, etc. [370][371][372][373][374][375][376][377] In the future, we believe that both ultrafast optics and strong-field optics at least have one same development trend that is to dramatically reduce pulse duration to an even shorter level, [378][379][380][381][382][383]…”

Section: Discussionmentioning

confidence: 99%

Further Development of the Short‐Pulse Petawatt Laser: Trends, Technologies, and Bottlenecks

Leng

2022

Laser & Photonics Reviews

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The petawatt (PW) laser has experienced a rapid development in the past two decades, and tens of giant facilities have been constructed worldwide. After realizing 10–100 PW, it seems to be close to some sort of engineering limit but its focused peak intensity still is much lower than the Schwinger limit, and therefore some technology improvements or innovations become indispensable for further increasing the peak power as well as the focused peak intensity. By quick reviewing the development of the PW laser in history, it is shown that reducing the pulse duration to near a single optical cycle is a feasible (easy and cheap) choice for this purpose. Here, technologies for the optical‐cycle pulse generation, ultrabroadband amplification, and capability boosting that aim to provide possible approaches for optical‐cycle PW lasers are briefly reviewed and discussed. Meanwhile, key bottlenecks that challenge the current as well as the future short‐pulse PW lasers and their possible solutions are summarized and discussed. This technology review aims to provide a possible roadmap for the next‐stage development of the short‐pulse PW laser.

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Section: Discussionmentioning

confidence: 99%

Further Development of the Short‐Pulse Petawatt Laser: Trends, Technologies, and Bottlenecks

Leng

2022

Laser & Photonics Reviews

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“…Unfortunately, the narrow gain bandwidth in this case results in an output pulse width of several ps after the chirped pulse amplifier (CPA). Hence, new schemes with nonlinear spectral broadening in a gas-filled hollow-core fiber (HCF) [ 14 , 15 ] , a hollow-core photonic crystal fiber (HC-PCF) [ 16 , 17 ] or a multipass cell (MPC) [ 18 ] are necessary to achieve few-cycle pulses after compression.…”

Section: Introductionmentioning

confidence: 99%

High-efficiency bismuth borate-based optical parametric chirped pulse amplifier with approximately 2.1 mJ, 38 fs output pulses at approximately 2150 nm

Petrulėnas

Mackonis²,

Rodin³

2023

High Pow Laser Sci Eng

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We present a compact and cost-effective mJ-level femtosecond laser system operating at a center wavelength of ~2.15 µm. An affordable two-stage Yb:YAG chirped pulse amplifier provides >10 mJ, ~1.2 ps pulses at 1030 nm to pump 3-stage OPCPA based on BiBO crystals and to drive the supercontinuum seed in the YAG crystal. The energy of amplified pulses in the wavelength range of 1.95 -2.4 µm reached 2.25 mJ with a pump-tosignal conversion efficiency of ~25% in the last OPCPA stage. These pulses were compressed to 38 fs in a pair of Suprasil 300 glass prisms.

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“…(2) that a much broader continuum can be obtained by using a longer wavelength driving laser for a given intensity difference. Highly efficient Chirped Pulse Amplification lasers based on gain media such as Cr:ZnSe at 2.5 μm and Fe:ZnSe at 4 μm may extend the attosecond spectrum to O K-edge [29][30][31] .…”

Section: Isolated Water Window X-ray Attosecond Pulsesmentioning

confidence: 99%

Attosecond science based on high harmonic generation from gases and solids

Li¹,

Lu²,

Chew³

et al. 2020

Nat Commun

Self Cite

242

126

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Recent progress in high power ultrafast shortwave and mid-wave infrared lasers has enabled gas-phase high harmonic generation (HHG) in the water window and beyond, as well as the demonstration of HHG in condensed matter. In this Perspective, we discuss the recent advancements and future trends in generating and characterizing soft X-ray pulses from gasphase HHG and extreme ultraviolet (XUV) pulses from solid-state HHG. Then, we discuss their current and potential usage in time-resolved study of electron and nuclear dynamics in atomic, molecular and condensed matters. T abletop attosecond light sources in the soft X-ray (SXR) spectral region based on highharmonic generation are highly desirable in chemical and material sciences since they can spectroscopically identify specific elements, as well as the oxidation states, charge states and even the spin states of those elements 1. One of the important spectral regions is the "water window" (282-533 eV), which covers the atomic K-shell excitation of carbon and oxygen. Although high harmonics in the water window were first generated with Ti:Sapphire lasers centered at 800 nm more than 20 years ago 2,3 , the X-ray photon flux was too low for timeresolved applications. The mechanism of HHG in gases can be explained by the semiclassical three-step model 4-6. When driving laser-field strength reaches~10 8 V m −1 , the bound electron in the atomic gas can tunnel through the Coulomb potential barrier and become a free electron. In the oscillating laser field, the free-electron wave packet may return to its parent ion with the right time of birth. At recombination, the interference between the wave packets of the returning and bound electrons produces an oscillating dipole that emits attosecond radiation. Returning electrons with various kinetic energy will recombine at different times giving rise to the chirp in the attosecond radiation 7. This process repeats twice for every optical cycle. The temporal beating of attosecond pulses results in the high-harmonic combs in the spectral domain. Empowered by the advances in driving lasers with center wavelengths around 1.8 μm, soft X-ray high harmonics can be generated with a moderate intensity of 10 14 W cm −2 (see Box 1 for details). Significant progress has recently been made in developing attosecond light within the water window 8. By spectrally broadening pulses from an Optical Parametric Amplifier (OPA) using a gas-filled hollow-core fiber 9 or by broadband phase matching in an Optical Parametric Chirped Pulse Amplifier (OPCPA) 10 , two-cycle, mJ-level pulses centered with 1 kHz repetition

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Generation of few-cycle multi-millijoule 2.5 μm pulses from a single-stage Cr2+:ZnSe amplifier

Cited by 25 publications

References 33 publications

Further Development of the Short‐Pulse Petawatt Laser: Trends, Technologies, and Bottlenecks

Further Development of the Short‐Pulse Petawatt Laser: Trends, Technologies, and Bottlenecks

High-efficiency bismuth borate-based optical parametric chirped pulse amplifier with approximately 2.1 mJ, 38 fs output pulses at approximately 2150 nm

Attosecond science based on high harmonic generation from gases and solids

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