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Hoang TB, Akselrod GM, Yang A, et al. Millimeter-Scale Spatial Coherence from a Plasmon Laser. Nano Lett. 2017;17(11):6690-6695doi: 10.1021/acs.nanolett.7b02677.
Hoang, T. B., Akselrod, G. M., Yang, A., Odom, T. W., & Mikkelsen, M. H. (2017). Millimeter-Scale Spatial Coherence from a Plasmon Laser. Nano letters, 17(11), 6690-6695. https://doi.org/10.1021/acs.nanolett.7b02677
Hoang, Thang B, et al. "Millimeter-Scale Spatial Coherence from a Plasmon Laser." Nano letters vol. 17,11 (2017): 6690-6695. doi: https://doi.org/10.1021/acs.nanolett.7b02677
Hoang TB, Akselrod GM, Yang A, Odom TW, Mikkelsen MH. Millimeter-Scale Spatial Coherence from a Plasmon Laser. Nano Lett. 2017 Nov 08;17(11):6690-6695. doi: 10.1021/acs.nanolett.7b02677. Epub 2017 Oct 04. PMID: 28956442.
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Nano Lett. 2017 Nov 08;17(11):6690-6695. doi: 10.1021/acs.nanolett.7b02677. Epub 2017 Oct 04.

Millimeter-Scale Spatial Coherence from a Plasmon Laser.

Nano letters

Thang B Hoang, Gleb M Akselrod, Ankun Yang, Teri W Odom, Maiken H Mikkelsen

Affiliations

  1. Center for Metamaterials and Integrated Plasmonics, ‡Department of Physics, and §Department of Electrical and Computer Engineering, Duke University , Durham, North Carolina 27708, United States.
  2. Department of Materials Science and Engineering and ?Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States.

PMID: 28956442 DOI: 10.1021/acs.nanolett.7b02677

Abstract

Coherent light sources have been demonstrated based on a wide range of nanostructures, however, little effort has been devoted to probing their underlying coherence properties. Here, we report long-range spatial coherence of lattice plasmon lasers constructed from a periodic array of gold nanoparticles and a liquid gain medium at room temperature. By combining spatial and temporal interferometry, we demonstrate millimeter-scale (∼1 mm) spatial coherence and picosecond (∼2 ps) temporal coherence. The long-range spatial coherence occurs even without the presence of strong coupling with the lattice plasmon mode extending over macroscopic distances in the lasing regime. This plasmonic lasing system thus provides a platform for understanding the emergence of long-range coherence from collections of nanoscale resonators and points toward novel types of distributed lasing sources.

Keywords: Plasmonics; nanolasers; spatial coherence; temporal coherence

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