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    Numerical study of spatiotemporal distortions in noncollinear optical parametric chirped-pulse amplifiers 

    Giree, Achut; Mero, Mark; Arisholm, Gunnar; Vrakking, Marc J. J.; Furch, Federico J. (2017)
    During amplification in a noncollinear optical parametric amplifier the spatial and temporal coordinates of the amplified field are inherently coupled. These couplings or distortions can limit the peak intensity, among ...

    Third-generation femtosecond technology 

    FATTAHI, Hanieh; BARROS, HELENA G.; GORJAN, MARTIN; NUBBEMEYER, THOMAS; ALSAIF, BIDOOR; TEISSET, CATHERINE Y.; SCHULTZE, MARCEL; PRINZ, STEPHAN; HAEFNER, MATTHIAS; UEFFING, MORITZ; ALISMAIL, AYMAN; VÁMOS, LÉNÁRD; SCHWARZ, ALEXANDER; PRONIN, OLEG; BRONS, JONATHAN; GENG, XIAO TAO; Arisholm, Gunnar; CIAPPINA, MARCELO; YAKOVLEV, VLADISLAV S.; KIM, DONG-EON; AZZEER, ABDALLAH M.; KARPOWICZ, NICHOLAS; SUTTER, DIRK; Major, Zsuzsanna; Metzger, Thomas; Krausz, Ferenc (2014)
    Femtosecond pulse generation was pioneered four decades ago using mode-locked dye lasers, which dominated the field for the following 20 years. Dye lasers were then replaced with titanium-doped sapphire (Ti:Sa) lasers, ...

    Optical parametric oscillators with high pulse energy and beam quality 

    Rustad, Gunnar; Farsund, Øystein; Arisholm, Gunnar (2010)
    A new method for obtaining high beam quality from high pulse energy optical parametric oscillators (OPOs) is demonstrated. By using different nonlinear crystals that have walk-off in orthogonal directions but are type 2 ...

    Efficient High-Power Ultrashort Pulse Compression in Self-Defocusing Bulk Media 

    Seidel, Marcus; Brons, Jonathan; Arisholm, Gunnar; Fritsch, Kilian; Pervak, Vladimir; Pronin, Oleg (2017)
    Peak and average power scalability is the key feature of advancing femtosecond laser technology. Today, near-infrared light sources are capable of providing hundreds of Watts of average power. These sources, however, ...

    High-power, 1-ps, all-Yb:YAG thin-disk regenerative amplifier 

    FATTAHI, Hanieh; Alismai, Ayman; Wang, Haochuan; Brons, Jonathan; Pronin, Oleg; Buberl, Theresa; Vamos, Lenard; Arisholm, Gunnar; Azzeer, Abdallah M; Krausz, Ferenc (2016)
    We report a 100 W, 20 mJ, 1-ps, all-Yb:YAG thin-disk regenerative amplifier seeded by a microjoule-level Yb:YAG thin-disk Kerr-lens mode-locked oscillator. The regenerative amplifier is implemented in a chirped pulse ...

    All solid-state spectral broadening: An average and peak power scalable method for compression of ultrashort pulses 

    Seidel, Marcus; Arisholm, Gunnar; Brons, Jonathan; Pervak, Vladimir; Pronin, Oleg (2016)
    Spectral broadening in bulk material is a simple, robust and low-cost method to extend the bandwidth of a laser source. Consequently, it enables ultrashort pulse compression. Experiments with a 38 MHz repetition rate, 50 ...

    Chirped pulses sum frequency generation for deep-UV picosecond pulse shaping 

    Vicario, Carlo; Trisorio, Alexandre; Arisholm, Gunnar; Hauri, Christoph P. (2012)
    We show by experiments and simulations that properly chirped laser pulses enable efficient and broadband sum frequency generation in nonlinear crystals. We achieved high energy, picosecond deep-UV pulses with spectral ...

    Optical parametric master oscillator and power amplifier for efficient conversion of high-energy pulses with high beam quality 

    Arisholm, Gunnar; Nordseth, Ørnulf; Rustad, Gunnar (2004)
    We describe a system for parametric conversion of high-energy, Q-switched laser pulses from 1.064 µm to 2.1 µm in KTiOPO4. High beam quality and efficiency are obtained by use of a two-stage system: An optical parametric ...

    Near-PHz-bandwidth, phase-stable continua generated from a Yb:YAG thin-disk amplifier 

    Fattahi, Hanieh; Wang, Haochuan; Alismail, Ayman; Arisholm, Gunnar; Pervak, Vladimir; Azzeer, Abdallah M.; Krausz, Ferenc (2016)
    We report on the generation of a multi-octave, phase-stable continuum from the output of a Yb:YAG regenerative amplifier delivering 1-ps pulses with randomly varying carrier-envelope phase (CEP). The intrinsically CEP-stable ...

    Deep-ultraviolet picosecond flat-top pulses by chirp-matched sum frequency generation 

    Vicario, Carlo; Trisorio, Alexandre; Arisholm, Gunnar; Hauri, Christoph P. (2012)
    Picosecond, flat-top, deep-UV pulses are needed to generate high-brightness electron beams to efficiently drive x-ray free electron lasers. Current metal photocathodes have low efficiency and therefore require high-energy ...
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    Arisholm, Gunnar (17)
    Seidel, Marcus (6)Krausz, Ferenc (4)Pervak, Vladimir (4)Pronin, Oleg (4)Brons, Jonathan (3)Vicario, Carlo (3)FATTAHI, Hanieh (2)Furch, Federico J. (2)Giree, Achut (2)... View MoreDate Issued2020 - 2022 (3)2010 - 2019 (13)2004 - 2009 (1)

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