Analysis of silica-filled slot waveguides based on hyperbolic metamaterials

Mironov, Evgeny G.; Li, Liming; Hattori, Haroldo T.; Rue, R.M. De La

doi:10.1364/josab.31.001822

Cited by 14 publications

(3 citation statements)

References 37 publications

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“…We note waveguides made with hyperbolic materials can carry positive and negative group velocity modes depending on frequency 36 37 38 39 40 . This may lend itself for backward propagating SHG, which can be highly efficient 41 .…”

Section: Discussionmentioning

confidence: 92%

New avenues for phase matching in nonlinear hyperbolic metamaterials

Duncan

Perret

Palomba

et al. 2015

Sci Rep

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Nonlinear optical processes, which are of paramount importance in science and technology, involve the generation of new frequencies. This requires phase matching to avoid that light generated at different positions interferes destructively. Of the two original approaches to achieve this, one relies on birefringence in optical crystals, and is therefore limited by the dispersion of naturally occurring materials, whereas the other, quasi-phase-matching, requires direct modulation of material properties, which is not universally possible. To overcome these limitations, we propose to exploit the unique dispersion afforded by hyperbolic metamaterials, where the refractive index can be arbitrarily large. We systematically analyse the ensuing opportunities and demonstrate that hyperbolic phase matching can be achieved with a wide range of material parameters, offering access to the use of nonlinear media for which phase matching cannot be achieved by other means. With the rapid development in the fabrication of hyperbolic metamaterials, our approach is destined to bring significant advantages over conventional techniques for the phase matching of a variety of nonlinear processes.

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Section: Discussionmentioning

confidence: 92%

New avenues for phase matching in nonlinear hyperbolic metamaterials

Duncan

Perret

Palomba

et al. 2015

Sci Rep

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“…More recently, nanoresonators constructed from HMs have also been investigated for both SE 70,71 and Raman 28 enhancement. Waveguides that utilize HMs have also been studied for different properties and applications [72][73][74][75][76] , including for SE enhancement 77 . Finally, we also consider the hybrid plasmonic slot WG [Fig.…”

Section: A Plasmonic Slot Waveguide Designs: Purcell and Beta Factors...mentioning

confidence: 99%

Nanoscale plasmonic slot waveguides for enhanced Raman spectroscopy

et al. 2018

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We theoretically investigate several types of plasmonic slot waveguides for enhancing the measured signal in Raman spectroscopy, which is a consequence of electric field and Purcell factor enhancements, as well as an increase in light-matter interaction volume and the Raman signal collection efficiency. An intuitive methodology is presented for calculating the accumulated Raman enhancement factor of an ensemble of molecules in waveguide sensing, which exploits an analytical photon Green function expansion in terms of the waveguide normal modes, and we combine this with a quantum optics formalism of the molecule-waveguide interaction to model Raman scattering. We subsequently show how integrated plasmonic slot waveguides can attain significantly higher Raman enhancement factors: ∼5.3× compared to optofluidic fibers and ∼3.7× compared to planar integrated dielectric waveguides, with a device size and thus analyte volume of at least threeorders of magnitude less. We also provide a comprehensive comparison between the different types of plasmonic slot waveguides based on the important figures-of-merit, and determine the optimal approaches to maximize Raman enhancement. arXiv:1806.06109v1 [physics.optics]

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“…Hyperbolic metamaterials (HMMs) [14][15][16] with stratified metal-dielectric structures may present anisotropic permittivities with hyperbolic dispersion and are amenable to large area nanofabrication technologies, such as magnetron sputtering [17], electron-beam evaporation [18][19][20] and physical vapor deposition method [21]. Such materials can improve the capabilities and functionalities of nanophotonic devices, like tailoring bandgaps for hyperlenses [22], designing hyper-crystals [23], improving capabilities in optical modulator [24], enhancing transmission [25], eliminating strong absorption [26] as well as slowing and trapping light in the waveguide structures and plasmonic metamaterials [27][28][29][30][31][32][33]. Similar to the hetero-MIM waveguide, the heterogeneous HIH structure (hetero-HIH) can be constructed using HMMs, but in contrast do not need to hire different metals.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic slow light waveguide with hyperbolic metamaterials claddings

Liang

Jiang

Yang

et al. 2018

J. Opt.

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Plasmonic waveguides with an insulator core sandwiched between hyperbolic metamaterials (HMMs) claddings, i.e. HIH waveguide, are investigated for achieving wide slow-light band with adjustable working wavelength. The transfer matrix method and the finite-difference-time-domain simulation are employed to study waveguide dispersion characteristics and pulse propagation. By selecting proper silver filling ratios for HMMs, the hetero-HIH waveguide presents a slow-light band with a zero group velocity dispersion wavelength of 1.55 μm and is capable of buffering pulses with pulse width as short as ∼20 fs. This type of waveguides might be applicable for ultrafast slow-light application.

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Analysis of silica-filled slot waveguides based on hyperbolic metamaterials

Cited by 14 publications

References 37 publications

New avenues for phase matching in nonlinear hyperbolic metamaterials

New avenues for phase matching in nonlinear hyperbolic metamaterials

Nanoscale plasmonic slot waveguides for enhanced Raman spectroscopy

Plasmonic slow light waveguide with hyperbolic metamaterials claddings

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