scholarly journals Integrated high-contrast diffraction gratings for surface electromagnetic waves

2021 ◽  
Vol 2015 (1) ◽  
pp. 012037
Author(s):  
L L Doskolovich ◽  
E A Bezus ◽  
D A Bykov
Keyword(s):  
Electromagnetic Waves ◽  
Diffraction Gratings ◽  
High Contrast ◽  
Integrated Optical ◽  
Out Of Plane ◽  
Dielectric Interfaces ◽  
Surface Electromagnetic Waves ◽  
On Chip ◽  
Optical Circuits ◽  
Plasmon Polaritons

Abstract We propose and theoretically and numerically investigate integrated high-contrast diffraction gratings for surface electromagnetic waves. We consider two platforms for the on-chip gratings: surface plasmon-polaritons propagating along metal-dielectric interfaces and Bloch surface waves propagating along interfaces of photonic crystals. We demonstrate that the optical properties of the studied integrated gratings are qualitatively close to the ones of the conventional high-contrast diffraction gratings. If the “parasitic” out-of-plane scattering is suppressed, the reflectance and transmittance of the on-chip gratings are not only qualitatively, but also quantitatively close to the corresponding values of the conventional “free-space” gratings. The obtained results may find application in novel integrated optical circuits.

On-chip near-wavelength diffraction gratings for surface electromagnetic waves

2017 ◽  
Author(s):  
Evgeni A. Bezus ◽  
Vladimir V. Podlipnov ◽  
Andrey A. Morozov ◽  
Leonid L. Doskolovich
Keyword(s):  
Electromagnetic Waves ◽  
Diffraction Gratings ◽  
Surface Electromagnetic Waves ◽  
On Chip

scholarly journals Single-plasmon interferences

2016 ◽  
Vol 2 (3) ◽  
pp. e1501574 ◽  
Author(s):  
Marie-Christine Dheur ◽  
Eloïse Devaux ◽  
Thomas W. Ebbesen ◽  
Alexandre Baron ◽  
Jean-Claude Rodier ◽  
...  
Keyword(s):  
Surface Plasmons ◽  
Surface Plasmon ◽  
Electromagnetic Waves ◽  
The Other ◽  
Air Interface ◽  
Wave Nature ◽  
Direct Demonstration ◽  
Wave Particle Duality ◽  
Dielectric Interfaces ◽  
Plasmon Polaritons

Surface plasmon polaritons are electromagnetic waves coupled to collective electron oscillations propagating along metal-dielectric interfaces, exhibiting a bosonic character. Recent experiments involving surface plasmons guided by wires or stripes allowed the reproduction of quantum optics effects, such as antibunching with a single surface plasmon state, coalescence with a two-plasmon state, conservation of squeezing, or entanglement through plasmonic channels. We report the first direct demonstration of the wave-particle duality for a single surface plasmon freely propagating along a planar metal-air interface. We develop a platform that enables two complementary experiments, one revealing the particle behavior of the single-plasmon state through antibunching, and the other one where the interferences prove its wave nature. This result opens up new ways to exploit quantum conversion effects between different bosonic species as shown here with photons and polaritons.

Study the Coupled-Cavity Waveguides Photonic Crystal Power Splitter

2014 ◽  
Vol 900 ◽  
pp. 222-225 ◽  
Author(s):  
Yan Bin Chen ◽  
Xu Ming Xu ◽  
Wei Li
Keyword(s):  
Photonic Crystal ◽  
Electromagnetic Waves ◽  
High Speed ◽  
Optical Signals ◽  
Power Splitter ◽  
Guided Mode ◽  
Propagation Analysis ◽  
Integrated Optical ◽  
Optical Circuits ◽  
Coupled Cavity

We propose a photonic crystal power splitter that allows the electromagnetic waves with a phase shift of 1800between output signals. The splitter consists of two parallel coupled-cavity waveguides placed in proximity. On the basis of the guided mode propagation analysis method, the self-imaging effect is discussed for the case of symmetric incidence. The finite-difference time-domain method is used to simulate the propagation of the beam and experimentally demonstrated. The results show that both output paths have the same physical length, the two output signals are synchronized. The splitter is very attractive for splitting high-speed optical signals in integrated optical circuits.

Plasmon-enhanced polarization-selective filter based on multiple holes array filled with nonlinear medium

2014 ◽  
Vol 28 (16) ◽  
pp. 1450130 ◽  
Author(s):  
Jin Dai ◽  
Shihong Wang ◽  
Gang Song ◽  
Li Yu ◽  
Lulu Wang ◽  
...  
Keyword(s):  
Nonlinear Medium ◽  
Incident Light ◽  
Selective Filter ◽  
Enhanced Transmission ◽  
Mirror Reflectivity ◽  
Integrated Optical ◽  
All Optical ◽  
On Chip ◽  
Multiple Holes ◽  
Optical Circuits

In this paper, a plasmon-enhanced polarization-selective filter is theoretically investigated in a structure composed of multiple holes array by filling it with nonlinear medium. The system combines the characteristics of selectable wavelength, enhanced transmission, polarization separation and output control by the intensity of incident light. As the incident light intensity approaches terawatt range, the optical bistability phenomenon appears only in y-polarization for one mode, while it appears in both x- and y-polarizations for the other mode, which is controlled by the coefficient of finesse F caused by the mirror reflectivity. Our findings demonstrate a feasible method for constructing nanoscale optical logical gates, filters, and all-optical switches; this method might be helpful for integrated optical circuits and on-chip optical interconnects.

scholarly journals Propagation of surface plasmon polaritons through gradient index and periodic structures

2010 ◽  
Vol 18 (4) ◽  
Author(s):  
T. Váry ◽  
P. Markoš
Keyword(s):  
Electromagnetic Waves ◽  
Periodic Structures ◽  
Metallic Surface ◽  
Gradient Index ◽  
Surface Electromagnetic Waves ◽  
Radiative Losses ◽  
Layered Dielectric ◽  
Dielectric Structures ◽  
Plasmon Polaritons ◽  
Periodic Layered Structure

AbstractWe study propagation of surface electromagnetic waves along a metallic surface covered by various layered dielectric structures. We show that strong radiative losses, typical for scattering of a surface wave, can be considerably suppressed when a single dielectric step is substituted by gradient index or periodic layered structure.

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