Frequency-resolved UV comb lines (IMAGE) Optica Caption Dual-comb spectroscopy enables precise refinement of the UV comb-line structure. Credit Konstantin Vodopyanov, CREOL Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.