Nanoscale plasmonic resonators with high Purcell factor: spontaneous and stimulated emission

Ewa M. Goldys, Wei Deng, Nils P. Calander, K. Drozdowicz-Tomsia, Dayong Jin

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionResearchpeer-review

Abstract

Plasmonic nanoparticles with silver cores and silica shells containing Eu fluorophores near the surface have been produced by wet chemistry method and their spontaneous emission properties characterized. Fluorescence amplification and decreased lifetime is interpreted within the Purcell framework which highlights the role of surface plasmon polariton modes of the nanoparticle. These behave as energy-storing resonators, with values of the Q factor between 50 and 170 at the fluorophore wavelength of 615 nm, and very small mode volumes, in the order of 104 nm3, producing high Purcell factors of over 4000. Comparison of experiment with theoretical calculations by using the Mie theory shows that the values of cavity Q factors are moderated by the nonradiative rate of fluorophore molecules close to metal. The criteria for laser action in such composite nanoparticles are also presented, including lasing frequencies and threshold gain.

LanguageEnglish
Title of host publicationColloidal Quantum Dots/Nanocrystals for Biomedical Applications VI
EditorsWolfgang J. Parak, Kenji Yamamoto, Marek Osinski
Place of PublicationBellingham, Washington
PublisherSPIE
Pages79090H-1-79090H-13
Number of pages13
Volume7909
ISBN (Print)9780819484468
DOIs
Publication statusPublished - 2011
EventColloidal Quantum Dots/Nanocrystals for Biomedical Applications VI - San Francisco, CA, United States
Duration: 22 Jan 201124 Jan 2011

Other

OtherColloidal Quantum Dots/Nanocrystals for Biomedical Applications VI
CountryUnited States
CitySan Francisco, CA
Period22/01/1124/01/11

Fingerprint

Stimulated emission
Fluorophores
Spontaneous emission
stimulated emission
Nanoparticles
spontaneous emission
Resonators
resonators
nanoparticles
Q factors
Mie scattering
Silver
Silicon Dioxide
polaritons
Amplification
lasing
Lasers
Fluorescence
Metals
silver

Keywords

  • plasmonic nanoparticles
  • fluorescence enhancement
  • Purcell factor
  • lasing threshold

Cite this

Goldys, E. M., Deng, W., Calander, N. P., Drozdowicz-Tomsia, K., & Jin, D. (2011). Nanoscale plasmonic resonators with high Purcell factor: spontaneous and stimulated emission. In W. J. Parak, K. Yamamoto, & M. Osinski (Eds.), Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI (Vol. 7909, pp. 79090H-1-79090H-13). [79090H] Bellingham, Washington: SPIE. https://doi.org/10.1117/12.881170
Goldys, Ewa M. ; Deng, Wei ; Calander, Nils P. ; Drozdowicz-Tomsia, K. ; Jin, Dayong. / Nanoscale plasmonic resonators with high Purcell factor : spontaneous and stimulated emission. Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI. editor / Wolfgang J. Parak ; Kenji Yamamoto ; Marek Osinski. Vol. 7909 Bellingham, Washington : SPIE, 2011. pp. 79090H-1-79090H-13
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abstract = "Plasmonic nanoparticles with silver cores and silica shells containing Eu fluorophores near the surface have been produced by wet chemistry method and their spontaneous emission properties characterized. Fluorescence amplification and decreased lifetime is interpreted within the Purcell framework which highlights the role of surface plasmon polariton modes of the nanoparticle. These behave as energy-storing resonators, with values of the Q factor between 50 and 170 at the fluorophore wavelength of 615 nm, and very small mode volumes, in the order of 104 nm3, producing high Purcell factors of over 4000. Comparison of experiment with theoretical calculations by using the Mie theory shows that the values of cavity Q factors are moderated by the nonradiative rate of fluorophore molecules close to metal. The criteria for laser action in such composite nanoparticles are also presented, including lasing frequencies and threshold gain.",
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Goldys, EM, Deng, W, Calander, NP, Drozdowicz-Tomsia, K & Jin, D 2011, Nanoscale plasmonic resonators with high Purcell factor: spontaneous and stimulated emission. in WJ Parak, K Yamamoto & M Osinski (eds), Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI. vol. 7909, 79090H, SPIE, Bellingham, Washington, pp. 79090H-1-79090H-13, Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI, San Francisco, CA, United States, 22/01/11. https://doi.org/10.1117/12.881170

Nanoscale plasmonic resonators with high Purcell factor : spontaneous and stimulated emission. / Goldys, Ewa M.; Deng, Wei; Calander, Nils P.; Drozdowicz-Tomsia, K.; Jin, Dayong.

Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI. ed. / Wolfgang J. Parak; Kenji Yamamoto; Marek Osinski. Vol. 7909 Bellingham, Washington : SPIE, 2011. p. 79090H-1-79090H-13 79090H.

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionResearchpeer-review

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AB - Plasmonic nanoparticles with silver cores and silica shells containing Eu fluorophores near the surface have been produced by wet chemistry method and their spontaneous emission properties characterized. Fluorescence amplification and decreased lifetime is interpreted within the Purcell framework which highlights the role of surface plasmon polariton modes of the nanoparticle. These behave as energy-storing resonators, with values of the Q factor between 50 and 170 at the fluorophore wavelength of 615 nm, and very small mode volumes, in the order of 104 nm3, producing high Purcell factors of over 4000. Comparison of experiment with theoretical calculations by using the Mie theory shows that the values of cavity Q factors are moderated by the nonradiative rate of fluorophore molecules close to metal. The criteria for laser action in such composite nanoparticles are also presented, including lasing frequencies and threshold gain.

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Goldys EM, Deng W, Calander NP, Drozdowicz-Tomsia K, Jin D. Nanoscale plasmonic resonators with high Purcell factor: spontaneous and stimulated emission. In Parak WJ, Yamamoto K, Osinski M, editors, Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI. Vol. 7909. Bellingham, Washington: SPIE. 2011. p. 79090H-1-79090H-13. 79090H https://doi.org/10.1117/12.881170