Transition metal doped zinc selenide infrared lasers for ultrafast and intense field science

Wu, Yi Lin; Larsen, Esben W.; Zhou, Fangjie; Wang, Lifeng; Marra, A.; Schade, D.; Li, Jialin; Chang, Zenghu

doi:10.1088/978-0-7503-2536-3ch3

Cited by 2 publications

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“…In MWIR spectral domain, laser devices based on solid-state active medium can be used. Transition metal (TM)-doped II-VI chalcogenides, being middle infrared analogs of Ti-sapphire, are the materials of choice for direct lasing and chirped pulse amplification (CPA) in this spectral range [111,112]. They enable broad spectral tunability, high peak and average power and ultra-short pulse duration.…”

Section: Mid-ir and Long Wavelength Infrared Lasersmentioning

confidence: 99%

“…Kerr-lens mode-locked polycrystalline Cr:ZnS(Se) seed lasers, developed during the past years are efficient, compact, and reliable, providing, by far, the best combinations of the output laser parameters in the spectral range between 2 and 3 μm and in a broad range of pulse repetition frequencies [111]. Several groups have demonstrated femtosecond Cr2+:ZnSe CPAs at kHz repetition rate with pulse energy approaching 10 millĳoule-level [102,112,119].The microsecond-level upper state lifetime of Cr:ZnSe indicates that ns lasers for CPA pumping synchronized to the seed pulses are required. Recently proposed and demonstrated directly diode pumped Big Aperture Thulium (BAT) laser concept enabling ns multi-joule-level systems operating near maximum of Cr:ZnSe absorption band at ∼ 1.9 μm at average powers approaching 100 kW [48,120].…”

Section: Mid-ir and Long Wavelength Infrared Lasersmentioning

confidence: 99%

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High average power ultrafast laser technologies for driving future advanced accelerators

Kiani,

Zhou,

Bahk

et al. 2023

J. Inst.

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Large scale laser facilities are needed to advance the energy frontier in high energy physics and accelerator physics. Laser plasma accelerators are core to advanced accelerator concepts aimed at reaching TeV electron electron colliders. In these facilities, intense laser pulses drive plasmas and are used to accelerate electrons to high energies in remarkably short distances. A laser plasma accelerator could in principle reach high energies with an accelerating length that is 1000 times shorter than in conventional RF based accelerators. Notionally, laser driven particle beam energies could scale beyond state of the art conventional accelerators. LPAs have produced multi GeV electron beams in about 20 cm with relative energy spread of about 2 percent, supported by highly developed laser technology. This validates key elements of the US DOE strategy for such accelerators to enable future colliders but extending best results to date to a TeV collider will require lasers with higher average power. While the per pulse energies envisioned for laser driven colliders are achievable with current lasers, low laser repetition rates limit potential collider luminosity. Applications will require rates of kHz to tens of kHz at Joules of energy and high efficiency, and a collider would require about 100 such stages, a leap from current Hz class LPAs. This represents a challenging 1000 fold increase in laser repetition rates beyond current state of the art. This whitepaper describes current research and outlook for candidate laser systems as well as the accompanying broadband and high damage threshold optics needed for driving future advanced accelerators.

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Section: Mid-ir and Long Wavelength Infrared Lasersmentioning

confidence: 99%

Section: Mid-ir and Long Wavelength Infrared Lasersmentioning

confidence: 99%

High average power ultrafast laser technologies for driving future advanced accelerators

Kiani,

Zhou,

Bahk

et al. 2023

J. Inst.

Self Cite

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49 W carrier-envelope-phase-stable few-cycle 2.1 µm OPCPA at 10 kHz

et al. 2023

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We demonstrate a mid-infrared optical parametric chirped pulse amplifier (OPCPA), delivering 2.1 µm center wavelength pulses with 20 fs duration and 4.9 mJ energy at 10 kHz repetition rate. This self-seeded system is based on a kW-class Yb:YAG thin-disk amplifier driving a CEP stable short-wavelength-infrared (SWIR) generation and three consecutive OPCPA stages. Our SWIR source achieves an average power of 49 W, while still maintaining excellent phase and average power stability with sub-100 mrad carrier-envelope-phase-noise and 0.8% average power fluctuations. These parameters enable the OPCPA setup to drive attosecond pump probe spectroscopy experiments with photon energies in the water window.

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Transition metal doped zinc selenide infrared lasers for ultrafast and intense field science

Cited by 2 publications

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High average power ultrafast laser technologies for driving future advanced accelerators

High average power ultrafast laser technologies for driving future advanced accelerators

49 W carrier-envelope-phase-stable few-cycle 2.1 µm OPCPA at 10 kHz

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