Metal-based resonant grating waveguide structures

Sharon, André; Glasberg, S.; Rosenblatt, D.; Friesem, Asher A.

doi:10.1364/josaa.14.000588

Cited by 61 publications

(26 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be used to enhance certain structures by introducing features and useful tuneable parameters. Dielectric gratings and waveguides have been previously studied [60] whereby the surface plasmon polaritons form a surface wave between the dielectric and metal due to the oscillation of free electrons at the interface.…”

Section: Additional Gratingmentioning

confidence: 99%

See 1 more Smart Citation

Metasurfaces-Based Absorption and Reflection Control: Perfect Absorbers and Reflectors

Badloe

Mun

Rho

2017

Journal of Nanomaterials

View full text Add to dashboard Cite

In the past decade, the realisation of negative index materials has initiated extensive research into metamaterials. Perfect absorbers and reflectors are of particular interest as their usefulness is endless in a range of different fields and devices. Since it was originally shown that a device can achieve unity absorption of electromagnetic waves, it has become a hot area of research to develop perfect absorbers based on polarisation independence and incident angle independence, at a range of frequencies from microwave to optical ones. The amazing performance, flexibility, and tunability of these metamaterials will be discussed here, by presenting the different designs and working mechanisms that have been realised up to now. Their limitations and shortcomings will be addressed and future plans for perfect absorbers and reflectors will be suggested.

show abstract

Section: Additional Gratingmentioning

confidence: 99%

“…The temporal coupled-mode theory [58][59][60][61][62] is used to provide light on the mechanism of the absorption. Under illumination of the resonant wavelength, surface plasmon polaritons will be excited.…”

Section: Additional Gratingmentioning

confidence: 99%

Metasurfaces-Based Absorption and Reflection Control: Perfect Absorbers and Reflectors

Badloe

Mun

Rho

2017

Journal of Nanomaterials

View full text Add to dashboard Cite

show abstract

“…It has been shown that the absorption losses of the material have to match the leakage rate of the mode in order to have resonant absorption through an impedance matching condition [10][11][12][13]. The photon lifetime τ o , related to the optical losses (related to the quality factor), needs to be equal to the photon lifetime τ a , related to the absorption losses.…”

Section: A Resonant Absorption With Waveguide Gratingsmentioning

confidence: 99%

Resonant absorption of a chemically sensitive layer based on waveguide gratings

Davoine¹,

Paeder²,

Basset³

et al. 2013

Appl. Opt.

View full text Add to dashboard Cite

A colorimetric sensor providing a direct visual indication of chemical contamination was developed. The sensor is a combination of a chemically sensitive dye layer and a resonant waveguide grating. Enhancement of the light absorption by the photonic structure can be clearly seen. The detection is based on the color change of the reflected light after exposure to a gas or a liquid. Low-cost fabrication and compatibility with environments where electricity cannot be used make this device very attractive for applications in hospitals, industries, with explosives, and in traffic.

show abstract

“…Resonance of coupled wave arises at certain conditions, i.e in case of placing of dielectric grating on metal substrate, moreover an absorption of a two polarizations electromagnetic waves is possible. Like tasks was analyzed in works [21][22][23] . But in work 21 , the structure, in which a waveguide are located between grating and metal film, are studied theoretically and experimentally.…”

Section: Introductionmentioning

confidence: 99%

“…Like tasks was analyzed in works [21][22][23] . But in work 21 , the structure, in which a waveguide are located between grating and metal film, are studied theoretically and experimentally. And in works 22,23 , the theoretical analysis of multi-layer periodic structures with absorbent substrate was conducted.…”

Section: Introductionmentioning

confidence: 99%

<title>Transmission peculiarities of dielectric layer/thin metallic film/dielectric layer structure, with or without periodicity in the dielectric layers</title>

Fitio

Bobitski

2008

SPIE Proceedings

View full text Add to dashboard Cite

The transmission characteristics of the dielectric grating -thin metal film -dielectric grating structure have been analyzed by the coupled wave method (CWM). The analysis is conducted for waves of TE and TM polarizations. The qualitative transmission characters are similar for two polarizations, but are different quantitatively. The reflectance of such structure can be higher than 0.85 on wavelength of 1.5µm at certain parameters for a silver film with thickness of 0.0385µm. The reflectance on the wavelength of the maximum transmission is actually equal to zero. The only thin film without gratings on the same wavelength has the transmittance of 0.004 and reflectance of 0.984. The system, which consists of grating from metal included between homogeneous dielectrics, also possesses by anomalous high transmission. At that the transmission is substantially higher than a ratio of a metal-free space to the grating period. Similar dependences can be obtained for a structure, in which the thin film of metal is located between two layers of dielectric with high refraction index. At certain conditions the reflection is less than 0.0002 and transmission is more than 0.87 for the metal thickness of 0.0385 µm. The rule is found, which is enable to find approximately the parameters for these high transmission structures. This effect is explained by the coupled wave resonance with forming of a wave node within the thin metal film that minimizes absorption.

show abstract

Metal-based resonant grating waveguide structures

Cited by 61 publications

References 14 publications

Metasurfaces-Based Absorption and Reflection Control: Perfect Absorbers and Reflectors

Metasurfaces-Based Absorption and Reflection Control: Perfect Absorbers and Reflectors

Resonant absorption of a chemically sensitive layer based on waveguide gratings

<title>Transmission peculiarities of dielectric layer/thin metallic film/dielectric layer structure, with or without periodicity in the dielectric layers</title>

Contact Info

Product

Resources

About