Fully Planarized Perfect Metamaterial Absorbers With No Photonic Nanostructures

Zhong, Yan Kai; Fu, Sze Ming; Ju, Nyan Ping; Tu, Ming-Hsiang; Chen, Bo-Ruei; Lin, Albert

doi:10.1109/jphot.2015.2507368

Cited by 22 publications

(23 citation statements)

References 30 publications

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“…Broadband or narrowband perfect absorption is important for many photonic applications [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. The previous effort includes hyperbolic metamaterial tapers [3,20,21], metallic nanocones [15], plasmonic absorbers [4,17], quasi-guided mode resonances in metal-dielectric-metal cavities [17], a composite metallic grating with multiple periodicities and filling factors [8], etc.…”

Section: Introductionmentioning

confidence: 99%

Omnidirectional, polarization-independent, ultra-broadband metamaterial perfect absorber using field-penetration and reflected-wave-cancellation

Zhong

Lai

et al. 2016

Opt. Express

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In this work, we present the result of nickel (Ni)-based metamaterial perfect absorbers (MPA) with ultra-broadband close-to-one absorbance. The experimental broadband characteristic is significantly improved over the past effort on metamaterial perfect absorbers. An in-depth physical picture and quantitative analysis is presented to reveal the physical origin of its ultrabroadband nature. The key constituent is the cancellation of the reflected wave using ultra-thin, moderate-extinction metallic films. The ultra-thin metal thickness can reduce the reflection as the optical field penetrates through the metallic films. This leads to minimal reflection at each ultra-thin metal layer, and light is penetrating into the Ni/SiO₂ stacking. More intuitively, when the layer thickness is much smaller than the photon wavelength, the layer is essentially invisible to the photons. This results in absorption in the metal thin-film through penetration while there is minimal reflection by the metal film. More importantly, the experimental evidence for omni-directionality and polarization-insensitivity are established for the proposed design. Detailed measurement is conducted. Due to the ultrathin metal layers and the satisfactory tolerance in dielectric thickness, the broadband absorption has minimal degradation at oblique incidence. Such a wide angle, polarization-insensitive, ultra-broadband MPA can be very promising in the future, and the optical physics using sub-skin-depth metal film can also facilitate miniaturized high-performance nano-photonic devices.

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Section: Introductionmentioning

confidence: 99%

Omnidirectional, polarization-independent, ultra-broadband metamaterial perfect absorber using field-penetration and reflected-wave-cancellation

Zhong

Lai

et al. 2016

Opt. Express

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“…A literature review on the recent progress on MPAs can be found in15161718. Recently, our group proposed ultrathin-metal-based planarized MPA to realize ultra-broadband absorption19.…”

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confidence: 99%

“…While there has been significant progress in the MPAs in recent years1247151619202122232425262728, a more aggressive goal is to attain a total control over the spectral absorption and the cut-off. Therefore, a purely broadband MPA needs to be further tailored to achieve a fully functionalized absorber.…”

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confidence: 99%

“…The second consideration is how to incorporate the filter on top of the MPA while still maintaining its filtering characteristics. The planar ultra-thin metal MPA proposed in our past work19 is the key that functional absorbers can be realized since it is very difficult to integrate dielectric filters of any kinds on the top of nano-structured MPAs while still maintaining the same filtering characteristic as the standalone filter.…”

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confidence: 99%

“…λ = 300 nm to λ = 2600 nm is utilized, and the thickness of each layer will be tuned to spectrally shape the absorption band, achieving a versatile aperiodic design. The perfect absorption is made available by using ~2 nm ultrathin-metal-based planar MPAs19. The planar MPA facilitates the design of an integrated filter.…”

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confidence: 99%

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A fully functionalized metamaterial perfect absorber with simple design and implementation

Zhong

et al. 2016

Sci Rep

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Broadband perfect metamaterial absorbers have been drawing significant attention in recent years. A close-to-unity absorption over a broad spectral range is established and this facilitates many photonic applications. A more challenging goal is to construct a broadband absorber with a tailored spectral absorption. The spectral absorption control and spectral shaping are very critical in many applications, such as thermal-photovoltaic, thermal emitters, spectrum imaging system, biomedical and extraterrestrial sensing, and refractive index sensor. In this work, one-dimensional (1D) planar stacking structure is designed to achieve the ultimate goal of a functionalized absorber with a fully tailorable spectral absorption. The lithography and etching process are totally eliminated in this proposed structure, and the fabrication is fully compatible with the regular silicon IC processing. By using ~2 nm ultra-thin metallic layers with a 10-pair (10X) SiO2/Si3N4 integrated dielectric filter, we can achieve decent spectral response shaping. The planar configuration of the ultra-thin-metal metamaterial perfect absorber (MPA) is the key to the easy design/integration of the dielectric filters on top of the MPA. Specifically, band-rejected, high-pass, low-pass and band-pass structure are constructed successfully. Finally, experimental evidence to support our simulation result is also provided, which proves the feasibility of our proposal.

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Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

Wang

Duan

et al. 2023

Adv Funct Materials

156

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Metamaterial absorbers have been widely studied and continuously concerned owing to their excellent resonance features of ultra-thin thickness, light-weight, and high absorbance. Their applications, however, are typically restricted by the intrinsic dispersion of materials and strong resonant features of patterned arrays (mainly referring to narrow absorption bandwidth). It is, therefore essential to reassert the principles of building broadband metamaterial absorbers (BMAs). Herein, the research progress of BMAs from principles, design strategies, tunable properties to functional applications are comprehensively and deeply summarized. Physical principles behind broadband absorption are briefly discussed, typical design strategies in realizing broadband absorption are further emphasized, such as top-down lithography, bottom-up self-assembly, and emerging 3D printing technology. Diversified active components choices, including optical response, temperature response, electrical response, magnetic response, mechanical response, and multi-parameter responses, are reviewed in achieving dynamically tuned broadband absorption. Following this, the achievements of various interdisciplinary applications for BMAs in energy-harvesting, photodetectors, radar-IR dual stealth, bolometers, noise absorbing, imaging, and fabric wearable are summarized. Finally, the challenges and perspectives for future development of BMAs are discussed.

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Fully Planarized Perfect Metamaterial Absorbers With No Photonic Nanostructures

Cited by 22 publications

References 30 publications

Omnidirectional, polarization-independent, ultra-broadband metamaterial perfect absorber using field-penetration and reflected-wave-cancellation

Omnidirectional, polarization-independent, ultra-broadband metamaterial perfect absorber using field-penetration and reflected-wave-cancellation

A fully functionalized metamaterial perfect absorber with simple design and implementation

Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

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