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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.


Evolution of the electric field intensity and phase in the vicinity of a high-Q TE27,1 WGM resonance in a single 5.6µm-diameter polysterene microsphere. (a,b) Calculated frequency spectra of the total electric field intensity, /E/2 (a), and a phase of the major E-field component, Arg(Ey) (b). The field is evaluated at the point on the sphere axis 100nm above the surface. The insets show a schematic of the scattering problem geometry (a) and the WGM field intensity map at the resonance. (c,d) Single-frame excerpts from movies of the spatial maps of Re(Ey) (Media 1, c) and Arg(Ey) (Media 2, d) evolution as a function of wavelength (shown at the TE27,1 resonance frequency).
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g001: Evolution of the electric field intensity and phase in the vicinity of a high-Q TE27,1 WGM resonance in a single 5.6µm-diameter polysterene microsphere. (a,b) Calculated frequency spectra of the total electric field intensity, /E/2 (a), and a phase of the major E-field component, Arg(Ey) (b). The field is evaluated at the point on the sphere axis 100nm above the surface. The insets show a schematic of the scattering problem geometry (a) and the WGM field intensity map at the resonance. (c,d) Single-frame excerpts from movies of the spatial maps of Re(Ey) (Media 1, c) and Arg(Ey) (Media 2, d) evolution as a function of wavelength (shown at the TE27,1 resonance frequency).

Mentions: The abrupt phase reversal is also a characteristic feature of high-Q photonic resonances in microcavities, such as WG modes in microspheres [30]. This effect is demonstrated in Fig. 1Fig. 1


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

Boriskina SV, Reinhard BM - Opt Express (2011)

Evolution of the electric field intensity and phase in the vicinity of a high-Q TE27,1 WGM resonance in a single 5.6µm-diameter polysterene microsphere. (a,b) Calculated frequency spectra of the total electric field intensity, /E/2 (a), and a phase of the major E-field component, Arg(Ey) (b). The field is evaluated at the point on the sphere axis 100nm above the surface. The insets show a schematic of the scattering problem geometry (a) and the WGM field intensity map at the resonance. (c,d) Single-frame excerpts from movies of the spatial maps of Re(Ey) (Media 1, c) and Arg(Ey) (Media 2, d) evolution as a function of wavelength (shown at the TE27,1 resonance frequency).
© Copyright Policy - open-access
Related In: Results  -  Collection

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

g001: Evolution of the electric field intensity and phase in the vicinity of a high-Q TE27,1 WGM resonance in a single 5.6µm-diameter polysterene microsphere. (a,b) Calculated frequency spectra of the total electric field intensity, /E/2 (a), and a phase of the major E-field component, Arg(Ey) (b). The field is evaluated at the point on the sphere axis 100nm above the surface. The insets show a schematic of the scattering problem geometry (a) and the WGM field intensity map at the resonance. (c,d) Single-frame excerpts from movies of the spatial maps of Re(Ey) (Media 1, c) and Arg(Ey) (Media 2, d) evolution as a function of wavelength (shown at the TE27,1 resonance frequency).
Mentions: The abrupt phase reversal is also a characteristic feature of high-Q photonic resonances in microcavities, such as WG modes in microspheres [30]. This effect is demonstrated in Fig. 1Fig. 1

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.