Perfect absorbers based on metal–insulator–metal structures in the visible region: a simple approach for practical applications

Kenanakis, George; Mavidis, Charalampos P.; Vasilaki, Evangelia; Katsarakis, N.; Kafesaki, Maria; Economou, E. N.; Soukoulis, Costas M.

doi:10.1007/s00339-016-0711-6

Cited by 30 publications

(29 citation statements)

References 23 publications

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“…The inclusion of thin layers of absorbing materials, such as metals or semiconductors, into multilayer stacks, allows for the design of structures with significant absorption (and, by Kirchhoff's law, significant emittance) [21]. In recent years, this approach has been the subject of increased interest as an easy-to-fabricate alternative to metasurfaces for tailorable selective surface absorbance/reflectance [22,23,24,25,26,27], for the fabrication of hyperbolic metamaterials at optical frequencies comprising a TiN/(Al,Sc)N stack [28,29] or for the modification of thermal transport through the alteration of phononic wave propagation [30,31]. An investigation of the long-term stability of a TiN/(Al,Sc)N stacks under thermal annealing is presented in [32], where the stability of the structure turns out to be limited by the presence of Scandium, which has a high diffusivity at elevated temperatures.…”

Section: Introductionmentioning

confidence: 99%

Ultra-thin titanium nitride films for refractory spectral selectivity [Invited]

Roberts¹,

Chirumamilla²,

Wang³

et al. 2018

Opt. Mater. Express

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We demonstrate a selectively emitting optical Fabry-Pérot resonator based on a few-nm-thin continuous metallic titanium nitride film, separated by a dielectric spacer from an optically thick titanium nitride back-reflector, which exhibits excellent stability at 1070 K against chemical degradation, thin-film instabilities and melting point depression. The structure paves the way to the design and fabrication of refractory thermal emitters using the well-established processes known from the field of multilayer and rugate optical filters. We demonstrate that a few-nanometer thick films of titanium nitride can be stable under operation at temperatures exceeding 1070 K. This type of selective emitter provides a means towards near-infrared thermal emission that could potentially be tailored to the accuracy level known from rugate optical filters.

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Section: Introductionmentioning

confidence: 99%

Ultra-thin titanium nitride films for refractory spectral selectivity [Invited]

Roberts¹,

Chirumamilla²,

Wang³

et al. 2018

Opt. Mater. Express

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“…A first highly-efficient absorber design concerns the metal-insulator-metal (MIM) structures [1][2][3]. The simplest MIM structure is composed of two metallic layers separated by a dielectric layer.…”

Section: Metal Insulator Metal (Mim) Structurementioning

confidence: 99%

Design and realization of light absorbers using plasmonic nanoparticles

Escoubas

Carlberg

Rouzo

et al. 2019

Progress in Quantum Electronics

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HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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“…Recentlyproposed metamaterial-based perfect absorbers require elaborate designs with precisely structured metal inclusions and/or multilayer topologies [19][20][21][22][23][24][25]. Achieving efficient operation with simpler structures that do not involve elaborate fabrication techniques is thus of high importance, as highlighted in [26]. Here, we design metal films with rectangular nanostructuring (i.e., binary metallic gratings with subwavelength pitch) that can perfectly absorb incident radiation without any reflections.…”

Section: Introductionmentioning

confidence: 99%

Perfect optical absorption with nanostructured metal films: design and experimental demonstration

Perrakis¹,

Tsilipakos²,

Kenanakis³

et al. 2019

Opt. Express

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Structuring metal surfaces on the nanoscale has been shown to alter their fundamental processes like reflection or absorption by supporting surface plasmon resonances. Here, we propose metal films with subwavelength rectangular nanostructuring that perfectly absorb the incident radiation in the optical regime. The structures are fabricated with low-cost nanoimprint lithography and thus constitute an appealing alternative to elaborate absorber designs with complex meta-atoms or multilayer structuring. We conduct a thorough numerical analysis to gain physical insight on how the key structural parameters affect the optical response and identify the designs leading to broad spectral and angular bandwidths, both of which are highly desirable in practical absorber applications. Subsequently, we fabricate and measure the structures with an FT-IR spectrometer demonstrating very good agreement with theory. Finally, we assess the performance of the proposed structures as sensing devices by quantifying the dependence of the absorption peak frequency position on the superstrate material.

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Perfect absorbers based on metal–insulator–metal structures in the visible region: a simple approach for practical applications

Cited by 30 publications

References 23 publications

Ultra-thin titanium nitride films for refractory spectral selectivity [Invited]

Ultra-thin titanium nitride films for refractory spectral selectivity [Invited]

Design and realization of light absorbers using plasmonic nanoparticles

Perfect optical absorption with nanostructured metal films: design and experimental demonstration

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