A long-range surface plasmon-polariton waveguide ring resonator as a platform for (bio)sensor applications

Diniz, L. O.; Marega, E.; Nunes, Frederico; Borges, Ben‐Hur V.

doi:10.1088/2040-8978/13/11/115001

Cited by 11 publications

(8 citation statements)

References 39 publications

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“…This indicates that it is possible to variate the interdot distance and the separation between the QDs and nanoring in our system. Furthermore, the corresponding simulations of this metal ring cavity have predicted the ultrahigh Purcel factor (>10 4 ) [18] and long propagation distance (2.17 mm) [19]. In addition, the present theory could also be applied to other similar systems, such as two atoms positioned close to a microtoroidal cacity [20] with the whispering-gallery-mode fields propagating inside the cavity.…”

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confidence: 84%

Generating maximum entanglement under asymmetric couplings to surface plasmons

Chen

2012

Opt. Lett.

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Generating entangled states is a vital ingredient for quantum information engineering. Here, we investigate the entanglement generation between two quantum dots coupled to nanoring surface plasmons with asymmetric coupling strength g(1) and g(2). The dynamics of concurrence C is obtained by solving the corresponding master equation. High entanglement can be generated at appropriate times through the scatterings of the incident field and its scattered field. Furthermore, we find that maximum entanglement can be created when r≡g(1)/g(2) is the ratio of odd numbers. Contrary to intuition, relative high entanglement (C≃1) can remain even if the ratio r is far off the required values, which is useful in real experiments.

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confidence: 84%

Generating maximum entanglement under asymmetric couplings to surface plasmons

Chen

2012

Opt. Lett.

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“…Even if these challenges can be overcome, fabrication of plasmonic nanoparticles is only the first step. To derive their true potential, it is necessary to seamlessly incorporate these structures into a more complex architecture, such as in optical and photovoltaic devices , or lab-on-a-chip applications. , Here we will present a fabrication process that addresses both ends of this design challenge.…”

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confidence: 99%

Fabrication of Deterministic Nanostructure Assemblies with Sub-nanometer Spacing Using a Nanoimprinting Transfer Technique

Barcelo

Kim

et al. 2012

ACS Nano

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Deterministic patterning or assembly of nanoparticles often requires complex processes that are not easily incorporated into system architectures of arbitrary design. We have developed a technique to fabricate deterministic nanoparticle assemblies using simple and inexpensive nanoimprinting equipment and procedures. First, a metal film is evaporated onto flexible polymer pillars made by nanoimprinting. The resulting metal caps on top of the pillars can be pulled into assemblies of arbitrary design by collapsing the pillars in a well-controlled manner. The nanoparticle assemblies are then transferred from the pillars onto a new substrate via nanoimprinting with the aid of either cold welding or chemical bonding. Using this technique, a variety of patterned nanoparticle assemblies of Au and Ag with a critical dimension less than 2 nm were fabricated and transferred to silicon-, glass-, and metal-coated substrates. Separating the nanostructure assembly from the final architecture removes significant design constraints from devices incorporating nanoparticle assemblies. The application of this process as a technique for generating surface-enhanced Raman spectroscopy substrates is presented.

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“…One of the major issues in this scheme is that SP inevitably experiences losses as it propagates along the nanowire, which limits the generation of entanglement between QDs. Ultrahigh Purcell factor 10 4 > ( ) of the metallic nanoring [42] and long propagation distance (2.17 mm) [43] make our scheme experimentally realizable. Measurement of entanglement in the system can be carried out by the procedure of ultrafast optical tomography [44].…”

Section: Discussionmentioning

confidence: 97%