6814 Suchergebnisse für: „“
Active intensity noise suppression for a broadband mid-infrared laser source
Excess relative intensity noise (RIN) constitutes one of the major limitations of most spectroscopic methods involving lasers. Here, we present an active RIN suppression scheme for a coherent mid-infrared...
PublikationenGeneration of isolated attosecond pulses with enhancement cavities — a theoretical study
The generation of extreme-ultraviolet (XUV) isolated attosecond pulses (IAPs) has enabled experimental access to the fastest phenomena in nature observed so far, namely the dynamics of electrons in atoms,...
PublikationenThree-octave terahertz pulses from optical rectification of 20fs, 1μm, 78MHz pulses in GaP
We demonstrate optical rectification of 1 ìm pulses with a duration of 20 fs, a repetition-rate of 78 MHz and an average power of 5.5 W, in a 2 mm thick GaP crystal. The spectrum of the resulting far-infrared...
PublikationenVelocity- and pointing-error measurements of a 300 000-r/min self-bearing permanent-magnet motor for optical applications
Compact, ultra-high-speed self-bearing permanent-magnet motors enable a wide scope of applications including an increasing number of optical ones. For implementation in an optical setup, the rotors have...
PublikationenHigh-power frequency comb at 2 μm wavelength emitted by a Tm-doped fiber laser system
We report on the generation of a high-power frequency comb in the 2 ìm wavelength regime featuring high amplitude and phase stability with unprecedented laser parameters, combining 60 W of average power...
PublikationenCumulative plasma effects in cavity-enhanced high-order harmonic generation in gases
Modern ultrafast laser architectures enable high-order harmonic generation (HHG) in gases at (multi-) MHz repetition rates, where each atom interacts with multiple pulses before leaving the HHG volume....
PublikationenWatt-scale super-octave mid-infrared intrapulse difference frequency generation
The development of high-power, broadband sources of coherent mid-infrared radiation is currently the subject of intense research that is driven by a substantial number of existing and continuously emerging...
PublikationenTemporal solitons in free-space femtosecond enhancement cavities
Temporal dissipative solitons in nonlinear optical resonators are self-compressed, self-stabilizing and indefinitely circulating wave packets. Owing to these properties, they have been harnessed for the...
PublikationenHigh-flux ultrafast extreme-ultraviolet photoemission spectroscopy at 18.4 MHz pulse repetition rate
Laser-dressed photoelectron spectroscopy, employing extreme-ultraviolet attosecond pulses obtained by femtosecond-laser-driven high-order harmonic generation, grants access to atomic-scale electron dynamics....
PublikationenWatt-scale 50-MHz source of single-cycle waveform-stable pulses in the molecular fingerprint region
We report a coherent mid-infrared (MIR) source with a combination of broad spectral coverage (6–18 ìm), high repetition rate (50 MHz), and high average power (0.5 W). The waveform-stable pulses emerge...
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