Structural color switching with a doped indium-gallium-zinc-oxide semiconductor

Kim, Inki; Yun, Ju‐Young; Badloe, Trevon; Park, Hyuk; Seo, TaeWon; Yang, Younghwan; Kim, Juhoon; Chung, Yoonyoung; Rho, Junsuk

doi:10.1364/prj.395749

Cited by 50 publications

(35 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The extremely polarized HEIL offers a mechanism for optical image encryption [ 38–41 ] of security information. As a demonstration, we encoded the Jinan University emblem in the prefabricated Al nanorod array though a bit by bit laser printing manner with a resolution of ≈800 nm.…”

Section: Resultsmentioning

confidence: 99%

Extremely Polarized and Efficient Hot Electron Intraband Luminescence from Aluminum Nanostructures for Nonlinear Optical Encoding

Zhang

Han

Shi

et al. 2020

Laser & Photonics Reviews

View full text Add to dashboard Cite

Hot electron intraband luminescence from plasmonic nanostructures is of critical importance for integrated photonic devices and applications in ultracompact nanospectrometer, bioimaging, information encryption et al. Although, the past few decades have witnessed tremendous progress in enhancing the luminescence efficiency of plasmonic nanostructures, the luminescence is usually unpolarized or partially polarized and difficult to be tailored because of its incoherent and broadband feature, significantly limiting its applications. Here the current limitation, demonstrating extremely polarized hot electron intraband luminescence with record‐high degree of linear polarization (≈1) and ≈40 000‐fold enhancement from judiciously designed aluminium (Al) plasmonic nanostructures, is broken through. The designed nanostructures exhibit strong polarization‐dependent anisotropic scattering across the visible band which efficiently modulates the luminescence in orthogonal directions. Leveraging this appealing feature, high‐contrast analyzer controlled optical image encryption and camouflage for information security applications are demonstrated. This research lays the groundwork for integrated nonlinear photonic devices based on complementary metal–oxide–semiconductor (CMOS)‐compatible plasmonic materials and paves the way for ultracompact on‐chip photonic devices demanding polarized white light sources.

show abstract

Section: Resultsmentioning

confidence: 99%

Extremely Polarized and Efficient Hot Electron Intraband Luminescence from Aluminum Nanostructures for Nonlinear Optical Encoding

Zhang

Han

Shi

et al. 2020

Laser & Photonics Reviews

View full text Add to dashboard Cite

show abstract

“…Furthermore, the use a variety of designer LC platforms can be adopted in many metasurfaces applications such as electrically tunable lenses [41,42] VR/AR displays, [43,44] LiDAR applications [45][46][47] and tunable reflective displays. [48][49][50][51] Also, recently developed scalable nanomanufacturing technologies [52,53] will enable high-end product-level applications.…”

Section: Doi: 101002/adma202004664mentioning

confidence: 99%

Stimuli‐Responsive Dynamic Metaholographic Displays with Designer Liquid Crystal Modulators

et al. 2020

Self Cite

View full text Add to dashboard Cite

Figure 5. Operation of spin-encoded metaholograms in a broadband range of visible light. The metasurface optimized at 633 nm shows a negligible crosstalk between each image as shown in Figures 3 and 4. In other wavelengths, however, phase deviation (induced by propagation phase shift) causes crosstalk. Also, below 500 nm wavelength, extinction coefficient of a-Si:H is high enough to make the device lossy.

show abstract

“…Metasurfaces are used to modulate the complex wavefront by effectively changing the propagation of light with a designed gradient phase 38 . Taking advantage of these exotic characteristics, various applications of metasurfaces have been reported, including metalenses, 15,39,40 structural coloration, 41–48 beam splitters, 49,50 optical diodes, 51,52 LIDAR, and resolution‐enhancing devices 53,54 …”

Section: Introductionmentioning

confidence: 99%

Geometric and physical configurations of meta‐atoms for advanced metasurface holography

Kim

Yang

Badloe

et al. 2021

InfoMat

Self Cite

View full text Add to dashboard Cite

Metasurfaces consisting of subwavelength structures, so‐called meta‐atoms, have steadily attracted considerable attention for advanced holography due to their advantages in terms of high‐resolution holographic images, large field of view, and compact device volume. In contrast to conventional holographic displays using bulky conventional diffractive optical elements, metasurface holography enables arbitrary complex wavefront shaping with a much smaller footprint. In this review, we classify metasurface holography according to the meta‐atom design methodologies, which can further expand hologram functionalities. We describe light‐matter interactions, particularly in metasurface systems, using the relevant the Jones matrix to rigorously explain modulations of the amplitude, phase, and polarization of light. Six different types of meta‐atoms are presented, and the corresponding achievable wavefronts that form the holographic images in the far‐field are also provided. Such a simple classification will give a straightforward approach to design and further realize advanced metasurface holographic devices.

show abstract

Structural color switching with a doped indium-gallium-zinc-oxide semiconductor

Cited by 50 publications

References 53 publications

Extremely Polarized and Efficient Hot Electron Intraband Luminescence from Aluminum Nanostructures for Nonlinear Optical Encoding

Extremely Polarized and Efficient Hot Electron Intraband Luminescence from Aluminum Nanostructures for Nonlinear Optical Encoding

Stimuli‐Responsive Dynamic Metaholographic Displays with Designer Liquid Crystal Modulators

Geometric and physical configurations of meta‐atoms for advanced metasurface holography

Contact Info

Product

Resources

About