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Conference papers
Short-range plasmon guides, resonators and antennas imaged by non-linear photoemission electron microscopy
Abstract : The exploitation of plasmonic local field enhancements to promote the local interactions between matter and optical fields motivates numerous researches. The objectives are to understand the mechanisms of plasmon-mediated interactions, and to realize molecularly- or atomically-precise nano-structures favouring such phenomena. We have developed a local-probe-free experiment (M-PEEM [1]) to map the electromagnetic field at the nanoscale close to metal structures. The analysis of the optical response of various metal nano-objects shows evidences of the excitation of so-called “short-range” propagative modes, strongly coupled to a metal nano-wire and highly localized around it at subwavelength scales.[2] After a detailed study of the characteristics of these modes, we have been able to design specific metal nano-objects exhibiting diverse functions such as antenna and local field enhancements. These model systems also gave new insights in the enhanced molecule-field interactions observed in the insulating gap of a scanning tunneling microscope [3-7]
https://hal-utt.archives-ouvertes.fr/hal-02448416
Contributor : Daniel Gavrysiak Connect in order to contact the contributor
Submitted on : Wednesday, January 22, 2020 - 12:03:40 PM
Last modification on : Wednesday, September 15, 2021 - 3:04:05 PM
Contributor : Daniel Gavrysiak Connect in order to contact the contributor
Submitted on : Wednesday, January 22, 2020 - 12:03:40 PM
Last modification on : Wednesday, September 15, 2021 - 3:04:05 PM