Ultralow-threshold, continuous-wave upconverting lasing from subwavelength plasmons

Angel Fernandez-Bravo, Danqing Wang, Edward S. Barnard, Ayelet Teitelboim, Cheryl Tajon, Jun Guan, George C. Schatz, Bruce E. Cohen, Emory M. Chan, P. James Schuck, Teri W. Odom

Research output: Contribution to journalLetter

1 Citation (Scopus)

Abstract

Miniaturized lasers are an emerging platform for generating coherent light for quantum photonics, in vivo cellular imaging, solid-state lighting and fast three-dimensional sensing in smartphones1–3. Continuous-wave lasing at room temperature is critical for integration with opto-electronic devices and optimal modulation of optical interactions4,5. Plasmonic nanocavities integrated with gain can generate coherent light at subwavelength scales6–9, beyond the diffraction limit that constrains mode volumes in dielectric cavities such as semiconducting nanowires10,11. However, insufficient gain with respect to losses and thermal instabilities in nanocavities has limited all nanoscale lasers to pulsed pump sources and/or low-temperature operation6–9,12–15. Here, we show continuous-wave upconverting lasing at room temperature with record-low thresholds and high photostability from subwavelength plasmons. We achieve selective, single-mode lasing from Yb3+/Er3+-co-doped upconverting nanoparticles conformally coated on Ag nanopillar arrays that support a single, sharp lattice plasmon cavity mode and greater than wavelength λ/20 field confinement in the vertical dimension. The intense electromagnetic near-fields localized in the vicinity of the nanopillars result in a threshold of 70 W cm−2, orders of magnitude lower than other small lasers. Our plasmon-nanoarray upconverting lasers provide directional, ultra-stable output at visible frequencies under near-infrared pumping, even after six hours of constant operation, which offers prospects in previously unrealizable applications of coherent nanoscale light.

Original languageEnglish
Pages (from-to)1172-1176
Number of pages5
JournalNature materials
Volume18
Issue number11
DOIs
Publication statusPublished - Nov 1 2019

Fingerprint

Plasmons
plasmons
continuous radiation
lasing
coherent light
thresholds
Lasers
lasers
cavities
thermal instability
room temperature
optoelectronic devices
Optoelectronic devices
illuminating
Temperature
Photonics
emerging
near fields
pumping
platforms

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Fernandez-Bravo, A., Wang, D., Barnard, E. S., Teitelboim, A., Tajon, C., Guan, J., ... Odom, T. W. (2019). Ultralow-threshold, continuous-wave upconverting lasing from subwavelength plasmons. Nature materials, 18(11), 1172-1176. https://doi.org/10.1038/s41563-019-0482-5

Ultralow-threshold, continuous-wave upconverting lasing from subwavelength plasmons. / Fernandez-Bravo, Angel; Wang, Danqing; Barnard, Edward S.; Teitelboim, Ayelet; Tajon, Cheryl; Guan, Jun; Schatz, George C.; Cohen, Bruce E.; Chan, Emory M.; Schuck, P. James; Odom, Teri W.

In: Nature materials, Vol. 18, No. 11, 01.11.2019, p. 1172-1176.

Research output: Contribution to journalLetter

Fernandez-Bravo, A, Wang, D, Barnard, ES, Teitelboim, A, Tajon, C, Guan, J, Schatz, GC, Cohen, BE, Chan, EM, Schuck, PJ & Odom, TW 2019, 'Ultralow-threshold, continuous-wave upconverting lasing from subwavelength plasmons', Nature materials, vol. 18, no. 11, pp. 1172-1176. https://doi.org/10.1038/s41563-019-0482-5
Fernandez-Bravo A, Wang D, Barnard ES, Teitelboim A, Tajon C, Guan J et al. Ultralow-threshold, continuous-wave upconverting lasing from subwavelength plasmons. Nature materials. 2019 Nov 1;18(11):1172-1176. https://doi.org/10.1038/s41563-019-0482-5
Fernandez-Bravo, Angel ; Wang, Danqing ; Barnard, Edward S. ; Teitelboim, Ayelet ; Tajon, Cheryl ; Guan, Jun ; Schatz, George C. ; Cohen, Bruce E. ; Chan, Emory M. ; Schuck, P. James ; Odom, Teri W. / Ultralow-threshold, continuous-wave upconverting lasing from subwavelength plasmons. In: Nature materials. 2019 ; Vol. 18, No. 11. pp. 1172-1176.
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AU - Teitelboim, Ayelet

AU - Tajon, Cheryl

AU - Guan, Jun

AU - Schatz, George C.

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AU - Chan, Emory M.

AU - Schuck, P. James

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