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Microresonator soliton dual-comb imaging

Bao, Chengying and Suh, Myoung-Gyun and Vahala, Kerry (2018) Microresonator soliton dual-comb imaging. . (Submitted)

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Fast-responding detector arrays are commonly used for imaging rapidly-changing scenes. Besides array detectors, a single-pixel detector combined with a broadband optical spectrum can also be used for rapid imaging by mapping the spectrum into a spatial coordinate and then rapidly measuring the spectrum. Here, broadband optical frequency combs generated from high-Q silica microresonators are used to implement this method. The microcomb is dispersed in two spatial dimensions to measure a test target. The target-encoded spectrum is then measured rapidly by multi-heterodyne beating with another microcomb having a slightly different repetition rate. The rapid image acquisition capability is also used to monitor the flow of microparticles in a fluid cell. This demonstration establishes that light sources and dual-comb detection methods for this form of rapid imaging can have a comparable chip-scale form factor to compact detector arrays.

Item Type:Report or Paper (Discussion Paper)
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URLURL TypeDescription Paper
Suh, Myoung-Gyun0000-0002-9527-0585
Additional Information:The authors thank Taeyoon Jeon for helpful discussions on the flow-cell experiment. This work is supported by the Defense Advanced Research Projects Agency under the SCOUT program (award no. W911NF-16-1-0548), the Air Force Office of Scientific Research (award no. FA9550-18-1-0353) and the Kavli Nanoscience Institute. CB gratefully acknowledges support from a postdoctoral fellowship from the Resnick Institute, Caltech. Author Contributions: All the authors conceived the experiment, analyzed the data and wrote the manuscript. CB and MGS conducted the experiments under the supervision of KV.
Group:Kavli Nanoscience Institute, Resnick Sustainability Institute
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Army Research Office (ARO)W911NF-16-1-0548
Air Force Office of Scientific Research (AFOSR)FA9550-18-1-0353
Kavli Nanoscience InstituteUNSPECIFIED
Resnick Sustainability InstituteUNSPECIFIED
Record Number:CaltechAUTHORS:20181129-145913477
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91339
Deposited By: Tony Diaz
Deposited On:29 Nov 2018 23:37
Last Modified:29 Nov 2018 23:37

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