Burst-mode dual-comb spectroscopy

Yu Zhang, Reagan R.D. Weeks, Caroline Lecaplain, Sivanandan S. Harilal, Jeremy Yeak, Mark C. Phillips, R. Jason Jones

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

We introduce a new, to the best of our knowledge, modality of dual-comb spectroscopy (DCS) that enables a simplified and powerful new approach for time-resolved measurements with increased acquisition rates. This “burst mode” form of DCS relies on the multiplexing of each probe pulse into a short train of pulses. With this approach we demonstrate a time-resolved series of absorption-based spectroscopic measurements of a laser-induced plasma using only a single laser ablation shot and identify 22 Nd lines not previously reported in the literature. The transmission spectra spanned 3.1 THz and were acquired at an effective acquisition rate of 25 kHz with 40 µs time resolution. This simple modification to ∼100 MHz level dual-comb systems provides a flexible approach for studying transient and low-duty-cycle events such as laser-induced plasmas, combustion, and explosive reactions.

Original languageEnglish (US)
Pages (from-to)860-863
Number of pages4
JournalOptics letters
Volume46
Issue number4
DOIs
StatePublished - Feb 15 2021

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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