Ultraviolet dual comb spectroscopy: a roadmap

Dual Comb Spectroscopy proved its versatile capabilities in molecular fingerprinting different spectral regions, but not yet the ultraviolet (UV). Unlocking this window would expand to electronic energy structure of matter.This will access prime triggers photo-chemical reactions with unprecedented resolution. In research article, we discuss milestones marking way first UV dual comb spectrometer. We present experimental and simulated studies towards spectroscopy, directly applied planned absorption measurements formaldehyde (centered at 343 nm, 3.6 eV) argon (80 16 eV). This enable an unparalleled relative resolution up $10^{-9}$ - a table-top source surpassing any synchrotron linked spectrometer by least two grating-based six orders magnitude.