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Title: Multi-harmonic near-infrared–ultraviolet dual-comb spectrometer
Dual-comb spectroscopy in the ultraviolet (UV) and visible would enable broad bandwidth electronic spectroscopy with unprecedented frequency resolution. However, there are significant challenges in generation, detection, and processing of dual-comb data that have restricted its progress in this spectral region. In this work, we leverage robust 1550 nm few-cycle pulses to generate frequency combs in the UV–visible. We combine these combs with a wavelength multiplexed dual-comb spectrometer and simultaneously retrieve 100 MHz comb-mode-resolved spectra over three distinct harmonics at 386, 500, and 760 nm. The experiments highlight the path to continuous dual-comb coverage spanning 200–750 nm, offering extensive access to electronic transitions in atoms, molecules, and solids.  more » « less
Award ID(s):
2016244
PAR ID:
10508185
Author(s) / Creator(s):
; ; ; ; ; ;
Publisher / Repository:
Optica Publishing
Date Published:
Journal Name:
Optics Letters
Volume:
49
Issue:
7
ISSN:
0146-9592
Page Range / eLocation ID:
1684
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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