High-Q surface-plasmon-polariton whispering-gallery microcavity

@article{Min2009HighQSW,
  title={High-Q surface-plasmon-polariton whispering-gallery microcavity},
  author={Bumki Min and Eric P. Ostby and Volker J. Sorger and Erick Ulin-Avila and Lan Yang and Xiang Zhang and Kerry J. Vahala},
  journal={Nature},
  year={2009},
  volume={457},
  pages={455-458}
}
Surface plasmon polaritons (SPPs) are electron density waves excited at the interfaces between metals and dielectric materials. Owing to their highly localized electromagnetic fields, they may be used for the transport and manipulation of photons on subwavelength scales. In particular, plasmonic resonant cavities represent an application that could exploit this field compression to create ultrasmall-mode-volume devices. A key figure of merit in this regard is the ratio of cavity quality factor… 

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References

SHOWING 1-10 OF 35 REFERENCES

Channel plasmon subwavelength waveguide components including interferometers and ring resonators

It is demonstrated that CPP guides can indeed be used for large-angle bending and splitting of radiation, thereby enabling the realization of ultracompact plasmonic components and paving the way for a new class of integrated optical circuits.

Ultra-high-Q toroid microcavity on a chip

This work demonstrates a process for producing silica toroid-shaped microresonators-on-a-chip with Q factors in excess of 100 million using a combination of lithography, dry etching and a selective reflow process, representing an improvement of nearly four orders of magnitude over previous chip-based resonators.

Efficient unidirectional nanoslit couplers for surface plasmons

The emerging field of plasmonics is based on exploiting the coupling between light and collective electronic excitations within conducting materials known as surface plasmons. Because the so-called

Submicrometer in-plane integrated surface plasmon cavities.

On the basis of numerical results, it is shown that in-plane SPP cavities can be used to achieve local SPP field enhancement and antireflecting SPP layers.

Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle plasmon waveguides

Observations of electromagnetic energy transport from a localized subwavelength source to a localized detector over distances of about 0.5 μm in plasmon waveguides consisting of closely spaced silver rods are presented.

Surface plasmon subwavelength optics

By altering the structure of a metal's surface, the properties of surface plasmons—in particular their interaction with light—can be tailored, which could lead to miniaturized photonic circuits with length scales that are much smaller than those currently achieved.

Surface plasmon polariton modes in a single-crystal Au nanoresonator fabricated using focused-ion-beam milling

We use focused-ion-beam milling of a single-crystal Au surface to fabricate a 590-nm-long linear ridge that acts as a surface plasmon nanoresonator. Cathodoluminescence imaging spectroscopy is then

Squeezing visible light waves into a 3-nm-thick and 55-nm-long plasmon cavity.

We demonstrate controlled squeezing of visible light waves into nanometer-sized optical cavities. The light is perpendicularly confined in a few-nanometer-thick SiO2 film sandwiched between Au

Lasing in metallic-coated nanocavities

Metallic cavities can confine light to volumes with dimensions considerably smaller than the wavelength of light. It is commonly believed, however, that the high losses in metals are prohibitive for

Beyond the Rayleigh scattering limit in high-Q silicon microdisks: theory and experiment.

Measurements indicate that optical loss in these high-Q microresonators is limited not by surface roughness, but rather by surface state absorption and bulk free-carrier absorption.