Lead halide perovskite plasmonic nanolasers with ultralow threshold

Yu-Jung Lu

doi:10.1117/12.2594099

1 August 2021 Lead halide perovskite plasmonic nanolasers with ultralow threshold

Yu-Jung Lu

Proceedings Volume 11795, Metamaterials, Metadevices, and Metasystems 2021; 1179518 (2021) https://doi.org/10.1117/12.2594099
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

We report the first known example of a subwavelength plasmonic upconverting nanolaser with a low threshold. This perovskite-based plasmonic upconverting nanolaser features a record-small mode volume and an ultralow lasing threshold. Besides, we observed temporal coherence of the emission, which is an important feature of lasing. To co-optimize the pump photon absorption and the upconverted photon emission rate, the lasing result was made possible based on plasmonic titanium nitride. Moreover, we also demonstrated a new concept of lasing from a quantum emitter utilizing an intense localized electromagnetic field. A continuous-wave lasing was observed from single perovskite (CsPbBr3) quantum dot in a gap-plasmon nanocavity with an ultralow threshold of 1.9 Wcm-2 at 120 K. In the end, we will discuss the outlook for perovskite plasmonic nanolasers as on-chip light sources for bio-imaging, optical communication applications.

Conference Presentation

Citation Download Citation

Yu-Jung Lu "Lead halide perovskite plasmonic nanolasers with ultralow threshold", Proc. SPIE 11795, Metamaterials, Metadevices, and Metasystems 2021, 1179518 (1 August 2021); https://doi.org/10.1117/12.2594099

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