High-brightness seven-octave carrier envelope phase-stable light source
Abstract
High-brightness sources of coherent and few-cycle-duration light waveforms with spectral coverage from the UV to the THz would offer unprecedented versatility and opportunities for a spectacular range of applications from bio-chemical sensing, to time-resolved and nonlinear spectroscopy, to attosecond light-wave electronics. Combinations of various sources with frequency conversion and supercontinuum generation can provide relatively large spectral coverage, but many applications require much broader spectral range and low-jitter synchronization for time-domain measurements. Here, we present a carrier-envelope-phase stable light source, seeded by a mid-IR frequency comb, with simultaneous spectral coverage across 7 optical octaves, from the UV (340 nm) into the THz (40,000 nm). Combining soliton self-compression and dispersive wave generation in an anti-resonant-reflection photonic crystal fibre with intra-pulse difference frequency generation in BaGa2GeSe6, the spectral brightness is 2-5 orders of magnitude above synchrotron sources. This enables high-dynamic-range spectroscopies and provides enticing prospects for attosecond physics and material sciences.
Cite
@article{arxiv.2011.00949,
title = {High-brightness seven-octave carrier envelope phase-stable light source},
author = {Ugaitz Elu and Luke Maidment and Lenard Vamos and Francesco Tani and David Novoa and Michael H. Frosz and Valeriy Badikov and Dmitrii Badikov and Valentin Petrov and Philip St. J. Russell and Jens Biegert},
journal= {arXiv preprint arXiv:2011.00949},
year = {2022}
}
Comments
4 figures