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- W4320147647 abstract "Utilizing surface plasmon polaritons (SPPs) is one of the most promising ways to miniaturize lasers into subwavelength-scale. Despite its potential, it has been challenging to make a plasmonic laser having a sub-micrometer scale in all three dimensions due to large cavity loss. Here, we demonstrate single-particle lasing around 540 nm with full-submicron, cesium lead bromide perovskite (CsPbBr 3 ) crystals atop polymer-coated gold substrates at room temperature. With a large number (~100) of devices, we systematically study the lasing action of plasmonic test and photonic control groups. The achieved smallest plasmonic laser was 0.56 μm × 0.58 μm ×0.32 μm in size, ten-fold smaller than that of our smallest photonic laser. Key elements to efficient plasmonic lasing are identified as enhanced optical gain by the Purcell effect, long carrier diffusivity, a large spontaneous emission factor, and a high group index. Our results shed light on the three-dimensional miniaturization of plasmonic lasers." @default.
- W4320147647 created "2023-02-13" @default.
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- W4320147647 date "2022-01-01" @default.
- W4320147647 modified "2023-10-16" @default.
- W4320147647 title "Efficient plasmonic lasing from submicron-sized visible perovskite particle on gold substrate" @default.
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- W4320147647 doi "https://doi.org/10.1364/fio.2022.jw4a.85" @default.
- W4320147647 hasPublicationYear "2022" @default.
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