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Adaptive on-chip control of nano-optical fields with optoplasmonic vortex nanogates.

Boriskina SV, Reinhard BM - Opt Express (2011)

Bottom Line: We introduce here an alternative approach, which is based on exploiting the strong sub-wavelength spatial phase modulation in the near-field of resonantly-excited high-Q optical microcavities integrated into plasmonic nanocircuits.We show that optical powerflow though nanoscale plasmonic structures can be dynamically molded by engineering interactions of microcavity-induced optical vortices with noble-metal nanoparticles.The proposed strategy of re-configuring plasmonic nanocircuits via locally-addressable photonic elements opens the way to develop chip-integrated optoplasmonic switching architectures, which is crucial for implementation of quantum information nanocircuits.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry & The Photonics Center, Boston University, Boston, MA 02215, USA. sboriskina@gmail.com

No MeSH data available.


Operation of the optoplasmonic vortex nanogate. (a-f) Single-frame excerpts from movies of the Poynting vector intensity /S/ maps and the optical power flow through the nanoantenna gap at the frequencies around the photonic-plasmonic Fano resonance shown in Fig. 3. The arrows point into the direction of the local powerflow, and the length of each arrow is proportional to the local value of the Poynting vector amplitude. Spatial maps are shown in the y-z plane at x = 0 (a-c) and in the x-z plane at y = 0 (Media 3, d-f), respectively. Solid circles indicate the boundaries of the Au nanospheres, and the dotted circles are the projections of the nanospheres on the plane cutting through the center of the dimer gap. (g-i) Schematics of the vortex-operated nanogates in the ‘closed’, ‘open Down’ and ‘open Up’ positions.
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g004: Operation of the optoplasmonic vortex nanogate. (a-f) Single-frame excerpts from movies of the Poynting vector intensity /S/ maps and the optical power flow through the nanoantenna gap at the frequencies around the photonic-plasmonic Fano resonance shown in Fig. 3. The arrows point into the direction of the local powerflow, and the length of each arrow is proportional to the local value of the Poynting vector amplitude. Spatial maps are shown in the y-z plane at x = 0 (a-c) and in the x-z plane at y = 0 (Media 3, d-f), respectively. Solid circles indicate the boundaries of the Au nanospheres, and the dotted circles are the projections of the nanospheres on the plane cutting through the center of the dimer gap. (g-i) Schematics of the vortex-operated nanogates in the ‘closed’, ‘open Down’ and ‘open Up’ positions.

Mentions: To better understand the physical processes underlying the operation of the optoplasmonic nanogate, in Fig. 4Fig. 4


Adaptive on-chip control of nano-optical fields with optoplasmonic vortex nanogates.

Boriskina SV, Reinhard BM - Opt Express (2011)

Operation of the optoplasmonic vortex nanogate. (a-f) Single-frame excerpts from movies of the Poynting vector intensity /S/ maps and the optical power flow through the nanoantenna gap at the frequencies around the photonic-plasmonic Fano resonance shown in Fig. 3. The arrows point into the direction of the local powerflow, and the length of each arrow is proportional to the local value of the Poynting vector amplitude. Spatial maps are shown in the y-z plane at x = 0 (a-c) and in the x-z plane at y = 0 (Media 3, d-f), respectively. Solid circles indicate the boundaries of the Au nanospheres, and the dotted circles are the projections of the nanospheres on the plane cutting through the center of the dimer gap. (g-i) Schematics of the vortex-operated nanogates in the ‘closed’, ‘open Down’ and ‘open Up’ positions.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3298770&req=5

g004: Operation of the optoplasmonic vortex nanogate. (a-f) Single-frame excerpts from movies of the Poynting vector intensity /S/ maps and the optical power flow through the nanoantenna gap at the frequencies around the photonic-plasmonic Fano resonance shown in Fig. 3. The arrows point into the direction of the local powerflow, and the length of each arrow is proportional to the local value of the Poynting vector amplitude. Spatial maps are shown in the y-z plane at x = 0 (a-c) and in the x-z plane at y = 0 (Media 3, d-f), respectively. Solid circles indicate the boundaries of the Au nanospheres, and the dotted circles are the projections of the nanospheres on the plane cutting through the center of the dimer gap. (g-i) Schematics of the vortex-operated nanogates in the ‘closed’, ‘open Down’ and ‘open Up’ positions.
Mentions: To better understand the physical processes underlying the operation of the optoplasmonic nanogate, in Fig. 4Fig. 4

Bottom Line: We introduce here an alternative approach, which is based on exploiting the strong sub-wavelength spatial phase modulation in the near-field of resonantly-excited high-Q optical microcavities integrated into plasmonic nanocircuits.We show that optical powerflow though nanoscale plasmonic structures can be dynamically molded by engineering interactions of microcavity-induced optical vortices with noble-metal nanoparticles.The proposed strategy of re-configuring plasmonic nanocircuits via locally-addressable photonic elements opens the way to develop chip-integrated optoplasmonic switching architectures, which is crucial for implementation of quantum information nanocircuits.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry & The Photonics Center, Boston University, Boston, MA 02215, USA. sboriskina@gmail.com

No MeSH data available.