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Nonlinear core-shel...
Nonlinear core-shell yagi-uda nanoantenna for highly tunable directive emission
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- Savelev, R.S. (author)
- Saint Petersburg National Research University of Information Technologies, Mechanics and Optics University (ITMO), Russian Federation
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- Sergaeva, O.N. (author)
- University of Missouri
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- Baranov, Denis, 1990 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Krasnok, A. E. (author)
- The University of Texas at Austin, USA,Saint Petersburg National Research University of Information Technologies, Mechanics and Optics University (ITMO), Russian Federation
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- Al'u, A. (author)
- The University of Texas at Austin, USA
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(creator_code:org_t)
- 2017
- 2017
- English.
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In: 2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings. - 9781943580279 ; Part F43-CLEO_AT 2017
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Abstract
Subject headings
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- We propose a novel type of tunable Yagi-Uda nanoantenna composed of metal-dielectric (Ag- Ge) core-shell nanoparticles. By choosing the appropriate nanoantenna parameters we excite a Van Hove singularity, supporting high values of directivity and Purcell factor within the same narrow frequency range. Our analysis reveals the possibility of flexible dynamical tuning of the hybrid nanoantenna emission pattern via electron-hole plasma excitation by additional fs-laser signal pulses.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- kon (subject category)
- ref (subject category)
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