4.6 Article

Upconversion Plasmonic Lasing from an Organolead Trihalide Perovskite Nanocrystal with Low Threshold

Journal

ACS PHOTONICS
Volume 8, Issue 1, Pages 335-342

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.0c01586

Keywords

titanium nitride; lead halide perovskites; plasmonics; nanolasers; upconversion lasing; ENZ

Funding

  1. Ministry of Science and Technology, Taiwan [MOST-106-2112-M-001036-MY3, MOST-109-2112-M-001-043-MY3, MOST-108-2221-E-001-018-MY3, MOST 108-2113M-006-005-MY3, MOST-109-2636-E-007-017]
  2. Academia Sinica [AS-CDA-108M08]
  3. U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0019140]

Ask authors/readers for more resources

The study demonstrates the improvement of upconversion efficiency and reduction of lasing threshold using single-mode upconversion lasing in a plasmonic nanocavity. This breakthrough in nanolaser technology has significant implications for various applications in photonics and nanotechnology.
The understanding of nonlinear light-matter interactions at the nanoscale has fueled worldwide interest in upconversion emission for imaging, lasing, and sensing. Upconversion lasers with anti-Stokes-type emission with various designs have been reported. However, reducing the volume and lasing threshold of such lasers to the nanoscale level is a fundamental photonics challenge. Here, we demonstrate that the upconversion efficiency can be improved by exploiting single-mode upconversion lasing from a single organo-lead halide perovskite nanocrystal in a resonance-adjustable plasmonic nanocavity. This upconversion plasmonic nanolaser has a very low lasing threshold (10 mu J cm(-2)) and a calculated ultrasmall mode volume (similar to 0.06 lambda(3)) at 6 K. To provide the unique feature for lasing action, a temporal coherence signature of the upconversion plasmonic nanolasing was determined by measuring the second-order correlation function. The localized-electromagnetic-field confinement can be tailored in titanium nitride resonance-adjustable nanocavities, enhancing the pump-photon absorption and upconverted photon emission rate to achieve lasing. The proof-of-concept results significantly expand the performance of upconversion nanolasers, which are useful in applications such as on-chip, coherent, nonlinear optics, information processing, data storage, and sensing.

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