Large-area, lithography-free, narrow-band and highly directional thermal emitter

Liu, Xingxing; Li, Zhiwei; Wen, Zhengji; Wu, Mingfei; Lu, Juwei; Xu, Chen; Zhao, Xinchao; Wang, Tao; Ji, Ruonan; Zhang, Yafeng; Sun, Liaoxin; Zhang, Bo; Xu, Hao; Zhou, Jing; Hao, Jiaming; Wang, Shaowei; Chen, Xiaoshuang; Dai, Ning; Lü, Wei; Shen, Xuechu

doi:10.1039/c9nr06181a

Cited by 42 publications

(17 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The angular responses of the color effects of our structures are investigated. As we know, for conventional lowloss dielectric films, the optical response generally depends on the thickness of film and sensitive to the incident angle [8,42]. Namely, their colors are sensitive to the angle of vision.…”

Section: Results and Analysismentioning

confidence: 99%

Wide gamut, angle-insensitive structural colors based on deep-subwavelength bilayer media

et al. 2020

Self Cite

View full text Add to dashboard Cite

AbstractWide gamut and angle-insensitive structural colors are highly desirable for many applications. Herein, a new type of lithography-free, planar bilayer nanostructures for generating structural colors is presented, which is basically composed of a deep-subwavelength, highly absorbing dielectric layer on an opaque metallic substrate. Experimental results show that a galaxy of brilliant structural colors can be generated by our structures, and which can cover ∼50% of the standard red–green–blue color space by adjusting the nanostructure dimensions. The color appearances are robust with respect to the angle of vision. Theoretical partial reflected wave analyses reveal that the structural color effect is attributed to the strong optical asymmetric Fabry–Perot-type (F–P-type) thin-film resonance interference. The versatility of the structural color properties as well as the simplicity of their fabrication processes make this bilayer structures very promising for various applications, such as security marking, information encryption, and color display, etc.

show abstract

Section: Results and Analysismentioning

confidence: 99%

Wide gamut, angle-insensitive structural colors based on deep-subwavelength bilayer media

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Typical emission response of an aperiodic dielectric stack structure compared to its periodic counterpart. (a) Spectral responses of a 17-layer periodic structure, similar to that proposed and thermally characterized in literature[62], versus the proposed aperiodic structure, and (b) variation of periodic structure response with increase and decrease in the number of layers.…”

mentioning

confidence: 74%

“…In three dimensions, there are six distinct major classifications of cell-based alldielectric stacked structures as mid-IR thermal emitters, with most of them discussed in a well-done review of optical nanostructures [6]. In particular, there are three sets of aperiodic and periodic structures, giving the six groups: (1) periodic cells on the surface [46,11,55,47,49,50,56,52,7,53,54,57,58,59,60,61], (2) aperiodic cells on the surface [8], (3) periodic cells in the z-direction [62], (4) aperiodic cells in the z-direction [20,63,64,65], (5) periodic cells in all dimensions [48,50,51,66,67], and (6) aperiodic cells in all dimensions. Groups three and four encompass the entirety of research for multi-layered stacked dielectric devices for thermal emission, with the work done in this Chapter being a subset of group four: a multi-layer aperiodically stacked structure of dielectrics with contrasting permittivity.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Groups three and four encompass the entirety of research for multi-layered stacked dielectric devices for thermal emission, with the work done in this Chapter being a subset of group four: a multi-layer aperiodically stacked structure of dielectrics with contrasting permittivity. In particular a periodic structure is where a sub-stack of dielectrics with two or more specific thicknesses forms a unit cell that is repeated along the vertical (longitudinal) direction [62], and an aperiodic structure is where the layer thickness can vary from one to the other [20,63].…”

Section: Literature Reviewmentioning

confidence: 99%

“…In particular, the usage of multi-layered dielectric stacks for IR emission shows promise in simulation [20] and in FTIR reflection measurement [63]. On the other hand, while detailed thermal testing of periodic dielectric stacks have been presented in [62], the structure being illustrated in Fig. 3.1(b), it requires large number of dielectric layers and thus forming a thick stack and suffers from spurious emission peaks due to the non-optimal periodic nature of the device.…”

Section: Literature Reviewmentioning

confidence: 99%

See 2 more Smart Citations

Multi-Layer Aperiodic Dielectric Stack Structures for High Performance Electromagnetic Spectral Shaping from mm-Wave to mid-IR Frequencies

Botros¹

View full text Add to dashboard Cite

show abstract

Single‐Material, Near‐Infrared Selective Absorber Based on Refractive Index‐Tunable Tamm Plasmon Structure

Kim

Yoo

et al. 2022

Advanced Optical Materials

View full text Add to dashboard Cite

efficient photonic applications such as near infrared spectra analysis, [1] telecommunications, [2] biomedical and chemical sensing. [3] Rapidly advancing plasmonics are of particular interest, along with their selective light-trapping with strongly localized photon energy, surface plasmons (SPs) have attracted attention due to their potential applications in medicine and chemistry, [4,5] as well as optical switching and near-field photonics. [6][7][8] However, many studies still rely on the Kretschmann-Raether excitation method, [9] requiring additional equipment to couple external light to surface modes at high angles of incidence (such as prisms), [10] or demand a metal/dielectric hybrid systems with delicately designed nanostructures to localize the photon energy in a deep-subwavelength region. [11] Unlike SPs, Tamm plasmons (TPs) can be directly observed with direct incidence without prism couplers and/or nanostructure. Also, the TPs structure can support surface waves dispersed within the light cone. [12] Optical TPs can form at the interfaces between distributed Bragg reflectors (DBRs) and with layers having optical thicknesses (t opt ) close to half the wavelength of light, similar to the electronic states that can occur in the energy bandgap of a crystal surface. [13,14] Because of their scalability and spectral tunability with a high quality (Q)-factor, and as sophisticated patterning is not required, TPs can be exploited in high-efficiency photonic applications; e.g., for photodetection, photocatalysis, biomedical diagnostics, and industrial process monitoring. [9,[15][16][17][18] Based on these theoretical advantages, the design and fabrication of real TP structures for practical applications have been studied. Recent approaches utilizing cavity-layer coupling, additional layers such as metasurfaces, [19] topological insulators, [20] and two-dimensional (2D) materials, including graphene and transition metal dichalcogenides, [21][22][23][24] have enhanced the available TP modes through adjustment of additional coupling. However, although these attempts successfully enhanced the resonator performance, they diminished the manufacturing advantages of the TP and planar structure. From the design point of view for satisfying both performance and manufacturing issues, DBR layers were stacked onto the metal reflector as a reversed structure from conventional TP structure. With reduced pairs of periodic layers (N) and by matching the impedance (Z) between As a powerful planar plasmonics, Tamm plasmon (TP) structures open up new possibilities for high-efficiency photonic applications demanding high quality (Q)-factor with scalability and spectral tunability. Despite the theoretical advantages of TP structures, TP configurations alternately stacked within limited materials and integer ranges result in thicker device sizes and still struggle to achieve ideal designs. Here, by introducing a computational model with varying design parameters, the configurations of highperformance TPs are presented within thin scal...

show abstract

Large-area, lithography-free, narrow-band and highly directional thermal emitter

Abstract: In this work, the authors propose and experimentally demonstrate a large-area long-wavelength infrared thermal emitter, which is spectrally selective, highly directional, and easily fabricated.

Cited by 42 publications

References 50 publications

Wide gamut, angle-insensitive structural colors based on deep-subwavelength bilayer media

Wide gamut, angle-insensitive structural colors based on deep-subwavelength bilayer media

Multi-Layer Aperiodic Dielectric Stack Structures for High Performance Electromagnetic Spectral Shaping from mm-Wave to mid-IR Frequencies

Single‐Material, Near‐Infrared Selective Absorber Based on Refractive Index‐Tunable Tamm Plasmon Structure

Contact Info

Product

Resources

About