Strong Photoluminescence Enhancement in All-Dielectric Fano Metasurface with High Quality Factor

Yuan, Shuai; Qiu, Xing-Zhi; Cui, Chengcong; Zhu, Liangqiu; Wang, Yuxi; Li, Yang; Song, Jinwen; Huang, Qingzhong; Xia, Jinsong

doi:10.1021/acsnano.7b04810

Cited by 123 publications

(96 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The advances in the field of lithography‐based silicon microfabrication and metasurface nanophotonics have made it possible to engineer the optical coupling. [ 14,26,29–31 ] Especially, optical Fano resonance, [ 15,26 ] arising from the individual micro/nanostructures, endows the simultaneous measurement properties of light–matter interactions. At present, nanowire or nanostrip shows different absorption efficiency under varied illumination angles.…”

Section: Figurementioning

confidence: 99%

Omnidirectional Photodetectors Based on Spatial Resonance Asymmetric Facade via a 3D Self‐Standing Strategy

Pan

Zhang

et al. 2020

Advanced Materials

View full text Add to dashboard Cite

Integration of photovoltaic materials directly into 3D light–matter resonance architectures can extend their functionality beyond traditional optoelectronics. Semiconductor structures at subwavelength scale naturally possess optical resonances, which provides the possibility to manipulate light–matter interactions. In this work, a structure and function integrated printing method to remodel 2D film to 3D self‐standing facade between predesigned gold electrodes, realizing the advancement of structure and function from 2D to 3D, is demonstrated. Due to the enlarged cross section in the 3D asymmetric rectangular structure, the facade photodetectors possess sensitive light–matter interaction. The single 3D facade photodetectors can measure the incident angle of light in 3D space with a 10° angular resolution. The resonance interaction of the incident light at different illumination angles and the 3D subwavelength photosensitive facade is analyzed by the simulated light flow in the facade. The 3D facade structure enhances the manipulation of the light–matter interaction and extends metasurface nanophotonics to a wider range of materials. The monitoring of dynamic variation is achieved in a single facade photodetector. Together with the flexibility of structure and function integrated printing strategy, three and four branched photodetectors extend the angle detection to omnidirectional ranges, which will be significant for the development of 3D angle‐sensing devices.

show abstract

Section: Figurementioning

confidence: 99%

Omnidirectional Photodetectors Based on Spatial Resonance Asymmetric Facade via a 3D Self‐Standing Strategy

Pan

Zhang

et al. 2020

Advanced Materials

View full text Add to dashboard Cite

show abstract

“…An array of coupled rectangular and nanodisk resonators with a high Q ‐factor of 466 has been demonstrated for third harmonic generation (THG) enhancement of at least 10 5 , owing to the good modal overlap with Si medium, hence achieving a conversion efficiency of 10 −6 using a peak pump intensity of 3.2 GW cm −2 (Figure f) . Recently, a record high Q ‐factor of 1011 has enabled photoluminescence enhancement of 10 3 at the peak M M1 position in an asymmetric air hole configuration that is composed of semicircle and semi‐ellipse, embedded with Ge quantum dots (Figure g) . All‐dielectrics are a feasible replacement to the plasmonics counterpart as it offers low‐loss high‐ Q Fano resonances that can be realized for similar metamaterial‐based applications.…”

Section: Perspectives To Loss Engineeringmentioning

confidence: 99%

Shaping High‐Q Planar Fano Resonant Metamaterials toward Futuristic Technologies

Lim

Manjappa

Pitchappa

et al. 2018

Advanced Optical Materials

View full text Add to dashboard Cite

Advances in plasmonic metamaterials have been rapidly evolving with innovations aimed at developing metadevices for real-world applications. In reality, energy losses in plasmonic systems are prevalent and it is of paramount importance to come up with solutions that could overcome the limitations that impede further advancements toward the miniaturization of optoelectronic metadevices. High-Q Fano resonance as a scattering phenomenon can be easily triggered by introducing asymmetry into plasmonic systems, and thus it offers a simple approach for reducing radiative losses through lineshape engineering. High-Q Fano resonance possesses narrow linewidth and intensely confined electromagnetic fields, which makes it viable for widespread applications. The purpose of this review is to consolidate the current advances and contributions that high-Q Fano resonance has made in the metamaterial community. Two general modes of energy loss including radiative and nonradiative losses are introduced and possible ways to overcome these challenges are examined. Furthermore, applications based on high-Q Fano resonance including sensors, lasing spasers, and optical switches are discussed, embracing the future of Fano resonance based high performance photonic technologies.

show abstract

“…All‐dielectric metasurfaces, in particular, which are composed of elements made of a high‐refractive index dielectric material, have been lately attracting more attention, as they show a very high diversity of exploitable properties, while being free from ohmic losses associated with the presence of metals . The potential of dielectric metasurfaces as a platform for low‐loss, compact, functional components has been extensively demonstrated in numerous applications, such as reflection/refraction control and wave‐front shaping, lensing, control of light emission or photoluminescence, polarization control and polarimetry, generation of vortex beams, highly selective filtering, or enhancement of nonlinear processes …”

Section: Introductionmentioning

confidence: 99%

All‐Dielectric Silicon Metasurface with Strong Subterahertz Toroidal Dipole Resonance

Zografopoulos

Ferraro

Algorri

et al. 2019

Advanced Optical Materials

View full text Add to dashboard Cite

properties of propagating electromagnetic waves, such as wave front, polarization, intensity, or spectrum, in ways unachievable by bulk materials of the same subwavelength thickness. [1][2][3] The constituent elements of a metasurface can be either metallic or dielectric and they are usually patterned on a low-loss, dielectric substrate. All-dielectric metasurfaces, in particular, which are composed of elements made of a high-refractive index dielectric material, have been lately attracting more attention, as they show a very high diversity of exploitable properties, while being free from ohmic losses associated with the presence of metals. [4] The potential of dielectric metasurfaces as a platform for low-loss, compact, functional components has been extensively demonstrated in numerous applications, such as reflection/refraction control and wave-front shaping, [5][6][7][8] lensing, [9] control of light emission [10,11] or photoluminescence, [12,13] polarization control [14,15] and polarimetry, [16] generation of vortex beams, [17] highly selective filtering, [18,19] or enhancement of nonlinear processes. [20,21] In addition to offering novel solutions in practical applications, metasurfaces can also provide insight in theoretical physics, optics, and the investigation of phenomena based on particular light-matter interaction conditions. One such case is that of toroidal modes, which have been under intense investigation, thanks to their unusual electromagnetic properties. The toroidal dipole, the simplest toroidal mode, is generated by a current flowing in a solenoid, which is bent into a torus. Under certain conditions, the excitation of the toroidal dipole can interfere destructively with the electric dipole mode and cancel the far-field scattering radiation of dielectric particles, in the so-called "anapole" state. [22] Since decades ago, toroidal modes were employed in physics, for instance, to explain the parity violation of the weak interactions in atomic nuclei, [23] to propose models of stable atoms, [24] or to describe dark matter. [25] In recent years, though, the interest on electromagnetic toroidal moments is rapidly increasing as, apart from the fundamental physical insight, they can be harnessed in numerous applications. [26,27] Toroidal modes in individual dielectric particles or small clusters have been theoretically proposed for the excitation of toroidal response, [28] cloaking, [29] enhanced absorption, [30] and nanolasing [31] or experimentally demonstrated as nonradiating sources [32] and for the enhancement of nonlinear effects. [33,34] Moreover, it A single-layer, all-dielectric metasurface exhibiting a strong toroidal resonance in the low-atmospheric loss radio window of the subterahertz W-band is theoretically proposed and experimentally demonstrated. The metasurface is fabricated on a high-resistivity floating-zone silicon wafer by means of a singleprocess, wet anisotropic etching technique. The properties of the toroidal mode of both the constituent dielectric elements and the metasur...

show abstract

Strong Photoluminescence Enhancement in All-Dielectric Fano Metasurface with High Quality Factor

Cited by 123 publications

References 65 publications

Omnidirectional Photodetectors Based on Spatial Resonance Asymmetric Facade via a 3D Self‐Standing Strategy

Omnidirectional Photodetectors Based on Spatial Resonance Asymmetric Facade via a 3D Self‐Standing Strategy

Shaping High‐Q Planar Fano Resonant Metamaterials toward Futuristic Technologies

All‐Dielectric Silicon Metasurface with Strong Subterahertz Toroidal Dipole Resonance

Contact Info

Product

Resources

About