Flexible control of light trapping and localization in a hybrid Tamm plasmonic system

Qing, Ye Ming; Feng, Hui; Cui, Tie Jun

doi:10.1364/ol.44.003302

Cited by 69 publications

(19 citation statements)

References 31 publications

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“…44 In addition, the integration of the graphene nanosheet into a grating-assisted TPP structure was proposed to excite TPP modes, guided modes, and hybrid modes simultaneously and results in multiband absorption. 45 However, many of these demonstrations conduct only numerical analysis, and the excited modes suffer from either a strong angular dependence or still lack of flexibility in spectral tuning once the multilayered structure is decided.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Conventionally, a variety of multiband thermal emitters have been demonstrated based on the designs of localized surface plasmon resonances in metal–insulator–metal (MIM) structures owing to their robustness in tailoring the emission wavelengths by simply varying the dimension of top antennas , or by forming stacked configurations. , However, the performance of the MIM thermal emitters was limited to their broad emission bandwidth due to the intrinsic metallic loss. On the contrary, while TPP structures provide as an effective platform to generate narrowband thermal emission, most of the TP-based thermal emitters exhibit only one single radiation peak as it is determined by the composed multilayers of the DBR especially the thickness of the nanocavity. , Thus, the interplay between TPP and other types of resonant modes has been studied to give rise to multimode coupling, − enabling the control of the multichannel light-trapping with more flexibility. − For example, dual-band perfect absorption was numerically demonstrated by employing the strong coupling of the topological photonic state and TPP in a one-dimensional topological photonic crystal heterostructure on a silver substrate . In addition, the integration of the graphene nanosheet into a grating-assisted TPP structure was proposed to excite TPP modes, guided modes, and hybrid modes simultaneously and results in multiband absorption .…”

Section: Introductionmentioning

confidence: 99%

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Triple Narrowband Mid-Infrared Thermal Emitter Based on a Au Grating-Assisted Nanoscale Germanium/Titanium Dioxide Distributed Bragg Reflector: Implications for Molecular Sensing

Hsiao

Huang

et al. 2021

ACS Appl. Nano Mater.

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Mid-infrared (MIR) light sources with selective multiple narrowband and minimal angular dependence have desired properties for practical sensing applications. In this work, a triple narrowband MIR thermal emitter is realized by a hybrid structure composed of gold (Au) gratings on top of an alternate stacking germanium/titanium dioxide (Ge/TiO 2 )-distributed Bragg reflector (DBR) and a Au reflector. Upon transverse-electric (TE)-polarized light illumination, three types of resonant modes including the hybridized Tamm plasmon polaritons (TPPs), the gap-cavity (GC) mode, and the middle-guided (MG) mode were excited simultaneously. While the hybridized TPPs are mainly determined by the composed nanolayers of the DBR, our results show that the GC mode has a strong dependence on the top-Gelayer thickness as well as on the gap distance between metallic stripes, and the MG mode mainly relies on the grating periodicity. In addition, both the hybridized TPPs and the GC mode exhibit a small wavelength deviation when varying the oblique incident angle. Thus, these two modes are applied to contribute triple radiation peaks at the wavelength range of 3−6 μm upon heating of the device. The distinct geometric dependence among the excited modes in the hybrid structure provides an additional degree of freedom in independently adjusting the spectral positions of the emission bands. Such a selective multiwavelength, narrowband, and small angular-dependent MIR light source is promising for enhancing the accuracy in discrimination of molecular fingerprint.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Triple Narrowband Mid-Infrared Thermal Emitter Based on a Au Grating-Assisted Nanoscale Germanium/Titanium Dioxide Distributed Bragg Reflector: Implications for Molecular Sensing

Hsiao

Huang

et al. 2021

ACS Appl. Nano Mater.

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“…The plasmonic reaction of graphene and the applications of Tamm structure have attracted widespread attention [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

High-performance Tunable Multichannel Absorbers Couple with Graphene-based Grating and Dual-Tamm Plasmonic Structures

Wang

et al. 2021

Preprint

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We present a hybrid Tamm system targeting the tunable multichannel absorber. The proposed optical absorber is analyzed and investigated by using the transfer matrix method (TMM). The numerical and theoretical studies show that the four perfect absorption peaks are generated by two types of resonant modes excited in the structure, which can be reasonably explained by the guide-mode resonance (GMR) and optical Tamm state (OTS). More importantly, the strong interaction between the two modes gives rise to mode hybridization by adjusting the grating period. Furthermore, the active modulation of the GMR-based peak can be manipulated discretely by tuning the polarization angle or continuously by changing the chemical potential of graphene. The presented optical absorption filter will meet high level of effectiveness in developing high-performance optoelectronic devices.

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“…A single graphene monolayer has an extremely low absorptivity of only 2.3%, which results from its sheet conductivity values [2,5,6]. Many works have been reported to increase its absorption by enhancing the light-graphene interaction, such as patterning graphene into ribbons, disks or rectangular patches, adopting a grating coupler, and combining graphene with dielectric layers [7][8][9][10][11][12][13][14][15]. It is noteworthy that the excitation of graphene plasmons has become an important platform to achieve enhanced light-matter interactions [11,[16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Tunable and broadband coherent perfect absorbers with nonlinear and amplification performance based on asymmetric bifacial graphene metasurfaces

Guo¹,

Argyropoulos²

2020

J. Opt.

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We present an asymmetric bifacial graphene metasurface to realize tunable and broadband coherent perfect absorption (CPA) at terahertz (THz) frequencies. The proposed design is composed of two dissimilar graphene square patch metasurfaces stacked over an ultrathin dielectric substrate. Nonlinear CPA performance without resorting to optical nonlinearities and amplification are demonstrated based on wave interference phenomena taking place along and inside this subwavelength structure. Broadband asymmetric reflection from opposite directions is obtained in the case of single wave illumination. This response acts as a precursor to the presented tunable and broadband nonlinear CPA performance and the inverse response to absorption, i.e., amplification, when an additional input wave coherently interacts with the opposite propagating incident wave. The proposed ultrathin broadband CPA device is expected to be a vital component to several new on-chip THz communication devices, such as optical modulators, sensors, photodetectors, and all-optical small-signal amplifiers.

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Flexible control of light trapping and localization in a hybrid Tamm plasmonic system

Cited by 69 publications

References 31 publications

Triple Narrowband Mid-Infrared Thermal Emitter Based on a Au Grating-Assisted Nanoscale Germanium/Titanium Dioxide Distributed Bragg Reflector: Implications for Molecular Sensing

Triple Narrowband Mid-Infrared Thermal Emitter Based on a Au Grating-Assisted Nanoscale Germanium/Titanium Dioxide Distributed Bragg Reflector: Implications for Molecular Sensing

High-performance Tunable Multichannel Absorbers Couple with Graphene-based Grating and Dual-Tamm Plasmonic Structures

Tunable and broadband coherent perfect absorbers with nonlinear and amplification performance based on asymmetric bifacial graphene metasurfaces

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