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Architecture for microcomb-based GHz-mid-infrared dual-comb spectroscopy

Bao, Chengying and Yuan, Zhiquan and Wu, Lue and Suh, Myoung-Gyun and Wang, Heming and Lin, Qiang and Vahala, Kerry J. (2021) Architecture for microcomb-based GHz-mid-infrared dual-comb spectroscopy. Nature Communications, 12 . Art. No. 6573. ISSN 2041-1723. PMCID PMC8589843. doi:10.1038/s41467-021-26958-6. https://resolver.caltech.edu/CaltechAUTHORS:20211115-171501194

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Abstract

Dual-comb spectroscopy (DCS) offers high sensitivity and wide spectral coverage without the need for bulky spectrometers or mechanical moving parts. And DCS in the mid-infrared (mid-IR) is of keen interest because of inherently strong molecular spectroscopic signatures in these bands. We report GHz-resolution mid-IR DCS of methane and ethane that is derived from counter-propagating (CP) soliton microcombs in combination with interleaved difference frequency generation. Because all four combs required to generate the two mid-IR combs rely upon stability derived from a single high-Q microcavity, the system architecture is both simplified and does not require external frequency locking. Methane and ethane spectra are measured over intervals as short as 0.5 ms, a time scale that can be further reduced using a different CP soliton arrangement. Also, tuning of spectral resolution on demand is demonstrated. Although at an early phase of development, the results are a step towards mid-IR gas sensors with chip-based architectures for chemical threat detection, breath analysis, combustion studies, and outdoor observation of trace gases.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1038/s41467-021-26958-6DOIArticle
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8589843PubMed CentralArticle
ORCID:
AuthorORCID
Bao, Chengying0000-0003-0697-508X
Wu, Lue0000-0002-7503-7057
Suh, Myoung-Gyun0000-0002-9527-0585
Wang, Heming0000-0003-3861-0624
Vahala, Kerry J.0000-0003-1783-1380
Additional Information:© The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. Received 06 April 2021; Accepted 25 October 2021; Published 12 November 2021. The authors thank Scott Diddams at NIST and Lukasz Sterczewski at JPL for helpful discussions. This work is supported by the Defence Threat Reduction Agency-Joint Science and Technology Office for Chemical and Biological Defence (grant No. HD-TRA11810047), the Air Force Office of Scientific Research (FA9550-18-1-0353) and the Kavli Nanoscience Institute. The content of the information does not necessarily reflect the position or the policy of the federal government, and no official endorsement should be inferred. C.B. gratefully acknowledges postdoctoral fellowship support from the Resnick Institute at Caltech. Data availability: The data that supports the plots within this paper and other findings of this study are available from the corresponding author upon reasonable request. Code availability: The code that supports dual-comb signal processing and other findings of this study are available from the corresponding author upon reasonable request. Author Contributions: C.B., Z.Y., Q.L. and K.J.V. conceived the project. C.B. and Z.Y. ran the DCS measurements, and analyzed the results with assistance from H.W. The samples were prepared by L.W. and M-G.S. All authors participated in preparing the manuscript. The project was supervised by K.J.V. These authors contributed equally: Chengying Bao and Zhiquan Yuan. The authors declare no competing interests. Peer review information: Nature Communications thanks the anonymous reviewer(s) for their contribution to the peer review of this work.
Group:Kavli Nanoscience Institute, Resnick Sustainability Institute
Funders:
Funding AgencyGrant Number
Defense Threat Reduction Agency (DTRA)HD-TRA11810047
Air Force Office of Scientific Research (AFOSR)FA9550-18-1-0353
Kavli Nanoscience InstituteUNSPECIFIED
Resnick Sustainability InstituteUNSPECIFIED
Subject Keywords:Frequency combs; Imaging and sensing; Mid-infrared photonics; Solitons
PubMed Central ID:PMC8589843
DOI:10.1038/s41467-021-26958-6
Record Number:CaltechAUTHORS:20211115-171501194
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20211115-171501194
Official Citation:Bao, C., Yuan, Z., Wu, L. et al. Architecture for microcomb-based GHz-mid-infrared dual-comb spectroscopy. Nat Commun 12, 6573 (2021). https://doi.org/10.1038/s41467-021-26958-6
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:111867
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:15 Nov 2021 17:40
Last Modified:17 Nov 2021 17:08

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