Burst-mode dual-comb spectroscopy



We introduce a new modality of dual-comb spectroscopy that enables a simplified and powerful new approach for time-resolved measurements with increased acquisition rates. This "burst mode" form of dual-comb spectroscopy (BM-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.
Date made available2021
PublisherThe Optical Society
  • Burst-mode dual-comb spectroscopy

    Zhang, Y., Weeks, R. R. D., Lecaplain, C., Harilal, S. S., Yeak, J., Phillips, M. C. & Jason Jones, R., Feb 15 2021, In: Optics letters. 46, 4, p. 860-863 4 p.

    Research output: Contribution to journalArticlepeer-review

    Open Access
    12 Scopus citations

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