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. 2018 Aug 17;4(8):eaat0292. doi: 10.1126/sciadv.aat0292

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Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 2 — (A) Emission spectra of the as-prepared dsDs with the pump energy changing from 0.5 to 1.5 mJ cm⁻². (B) The corresponding FWHM (blue line) and emission intensity (red line) vary with the pump energy. SE, spontaneous emission. (C) Emission spectra of the gain material without plasmon cavity under pump energy of 0.4 to 1.5 mJ cm⁻². (D) Curves of emission intensity at 520 and 540 nm (left) and their ratio (right) with the changing of pump energy.