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

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

doi:10.1117/12.881170

11 February 2011 Nanoscale plasmonic resonators with high Purcell factor: spontaneous and stimulated emission

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

Proceedings Volume 7909, Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI; 79090H (2011) https://doi.org/10.1117/12.881170
Event: SPIE BiOS, 2011, San Francisco, California, United States

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.

Citation Download Citation

Ewa M. Goldys, Wei Deng, Nils P. Calander, K. Drozdowicz-Tomsia, and Dayong Jin "Nanoscale plasmonic resonators with high Purcell factor: spontaneous and stimulated emission", Proc. SPIE 7909, Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI, 79090H (11 February 2011); https://doi.org/10.1117/12.881170

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available