Ugaitz Elu

1 Introduction Over the past two decades, novel architectures for light sources, improved coating procedures, and mastery of nonlinear light-matter interactions have enabled the availability of brilliant sources of near-single-cycle pulses with carrier-envelope phase (CEP) stability.

Abstract High-brightness sources of coherent and few-cycle-duration light waveforms with spectral coverage from the ultraviolet to the terahertz would offer unprecedented versatility and opportunities for a wide range of applications from bio-chemical sensing1 to time-resolved and nonlinear spectroscopy, and to attosecond light-wave electronics2,3.

Abstract Probing matter with light in the mid-infrared provides unique insight into molecular composition, structure, and function with high sensitivity. However, laser spectroscopy in this spectral region lacks the broadband or tunable light sources and efficient detectors available in the visible or near-infrared.