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Journal articles
Ultrasmall metal-insulator-metal nanoresonators: impact of slow-wave effects on the quality factor
Abstract : We study the quality factor variation of three dimensional Metal-Insulator-Metal nanoresonators when their volume is shrunk from the diffraction limit (λ /2n)3 down to a deep subwavelength scale (λ /50)3. In addition to rigorous fully-vectorial calculations, we provide a semianalytical expression of the quality factor Q obtained with a Fabry-Perot model. The latter quantitatively predicts the absorption and radiation losses of the nanoresonator and provides an in-depth understanding of the mode lifetime that cannot be obtained with brute-force computations. In particular, it highlights the impact of slow-wave effects on the Q-factor as the size of the resonator is decreased. The Fabry-Perot model also evidences that, unexpectedly, wave retardation effects are present in metallic nanoparticles, even for deep subwavelength dimensions in the quasi-static regime.
Cited literature [45 references]
https://hal-iogs.archives-ouvertes.fr/hal-00811646
Contributor : Christophe Sauvan Connect in order to contact the contributor
Submitted on : Wednesday, April 10, 2013 - 7:15:44 PM
Last modification on : Friday, November 19, 2021 - 3:42:51 AM
Long-term archiving on: : Thursday, July 11, 2013 - 4:18:47 AM
Contributor : Christophe Sauvan Connect in order to contact the contributor
Submitted on : Wednesday, April 10, 2013 - 7:15:44 PM
Last modification on : Friday, November 19, 2021 - 3:42:51 AM
Long-term archiving on: : Thursday, July 11, 2013 - 4:18:47 AM
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