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Sub-optical-cycle light-matter energy transfer in molecular vibrational spectroscopy
The evolution of ultrafast-laser technology has steadily advanced the level of detail in studies of light-matter interactions. Here, we employ electric-fieldresolved spectroscopy and quantum-chemicalmodelling...
Publications | 08.03.2023Cavity-enhanced field-resolved spectroscopy
Femtosecond enhancement cavities1 are key to applications including high-sensitivity linear2–4 and nonlinear5,6 gas spectroscopy, as well as efficient nonlinear optical frequency conversion7–10. Yet,...
Publications | 08.03.2023Average power scaling of THz spintronic emitters efficiently cooled in reflection geometry
Metallic spintronic terahertz (THz) emitters have becomewell-established for offering ultra-broadband, gapless THz emission in a variety of excitation regimes, in combination with reliable fabrication...
Publications | 08.03.2023Enhanced intrapulse difference frequency generation in the mid-infrared by a spectrally dependent polarization state
We present a technique to optimize the intrapulse difference frequency generation efficiency for mid-infrared generation. The approach employs a multi-order wave plate that is designed to selectively rotate...
Publications | 08.03.2023Ultra-rapid electro-optic sampling of octave-spanning mid-infrared waveforms
We demonstrate ultra-rapid electro-optic sampling (EOS) of octave-spanning midinfrared pulses centered at 9 ìm, implemented by mechanically scanning a mirror with a sonotrode resonating at 19 kHz (forward...
PublicationsAttosecond intra-valence band dynamics and resonant-photoemission delays in W(110)
Time-resolved photoelectron spectroscopy with attosecond precision provides new insights into the photoelectric effect and gives information about the timing of photoemission from different electronic...
PublicationsExtreme-ultraviolet frequency combs for precision metrology and attosecond science
Femtosecond mode-locked lasers producing visible/infrared frequency combs have steadily advanced our understanding of fundamental processes in nature. For example, optical clocks employ frequency-comb...
PublicationsPhase-Matching for Generation of Isolated Attosecond XUV and Soft-X-Ray Pulses with Few-Cycle Drivers
Isolated attosecond pulses (IAPs) produced through laser-driven high-harmonic generation (HHG) hold promise for unprecedented insight into physical, chemical, and biological processes via attosecond x-ray...
PublicationsSuppression of individual peaks in two-colour high harmonic generation
This work investigates the suppression of individual harmonics, simultaneously affecting specific even and odd orders in the high-harmonic spectra generated by strongly tailored, two-colour, multi-cycle...
PublicationsOptimum Sample Thickness for Trace Analyte Detection with Field-Resolved Infrared Spectroscopy
The strong absorption of liquid water in the infrared (IR) molecular fingerprint region constitutes a challenge for applications of vibrational spectroscopy in chemistry, biology, and medicine. While high-power...
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