Chiral Bound States in the Continuum in Plasmonic Metasurfaces

Tang, Yuhu; Liang, Yao; Yao, Jin; Chen, Mu Ku; Lin, Shaopei; Wang, Zhuo; Zhang, Jing Cheng; Huang, Xu; Chen, Yu; Tsai, Din Ping

doi:10.1002/lpor.202200597

Cited by 71 publications

(46 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, numerous chiral metasurfaces assisted by BICs lead to quasi‐BICs have been demonstrated in the literature. [ 94–104 ]…”

Section: Chirality Empowered By Bound States In the Continuum (Bics)mentioning

confidence: 99%

“…Reproduced with permission. [ 95 ] Copyright 2023, Author(s) Creative Commons Attribution (CC BY) license published by Wiley‐VCH GmbH. C) A dielectric chiral metasurface based on a pair of bars hosting BIC resonance exhibiting strong circular dichroism in a narrow band with maximum Q‐factor.…”

Section: Chirality Empowered By Bound States In the Continuum (Bics)mentioning

confidence: 99%

“…Recently, numerous chiral metasurfaces assisted by BICs lead to quasi-BICs have been demonstrated in the literature. [94][95][96][97][98][99][100][101][102][103][104] Wu et al demonstrated a honeycomb-shaped gold hole structure to design a plasmonic metasurface to generate strong circular dichroism triggered by near-field perturbation without breaking the rotational and mirror symmetry (Figure 5A). [94] Meanwhile, a rectangular hole structure is also demonstrated to prove the generation of strong chirality without breaking Society of America.…”

Section: Chirality Empowered By Bound States In the Continuum (Bics)mentioning

confidence: 99%

“…Most recently, Tang et al numerically demonstrated a 3D plasmonic metasurface to overcome the fundamental trade-off between the CD and the Q-factor in previously presented BICs-based chiral metasurfaces (Figure 5B). [95] The proposed metasurface used an integrated unit comprising a vertically twisted split ring resonator and a wall to introduce a new degree of freedom that can decouple the CD and Q-factor. Moreover, the independent manipulation of CD and the Q-factor is illustrated by changing the height of the wall and the angle of the vertically twisted split ring resonator.…”

Section: Chirality Empowered By Bound States In the Continuum (Bics)mentioning

confidence: 99%

“…The proposed metasurface used an integrated unit comprising a vertically twisted split ring resonator and a wall to independently manipulate the Q-factor and CD. Reproduced with permission [95]. Copyright 2023, Author(s) Creative Commons Attribution (CC BY) license published by Wiley-VCH GmbH.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Recent Progress on Plasmonic and Dielectric Chiral Metasurfaces: Fundamentals, Design Strategies, and Implementation

Khaliq

Nauman

Lee

2023

Advanced Optical Materials

View full text Add to dashboard Cite

Over the years, researchers have been exploring ways to artificially design chiral structures and materials, namely metamaterials and metasurfaces. They exhibit unique optical properties that can be used for various applications. However, metasurfaces comprise symmetry‐breaking structures that provide a more convenient solution for planar chiral optics regardless of whether they are plasmonic or dielectric. In general, plasmonic chiral metasurfaces are more suitable for applications requiring a high confinement level and substantial optical near‐field enhancement. In contrast, dielectric chiral metasurfaces are ideal for wide operating wavelength ranges and low losses. This review summarizes the recent progress on plasmonic and dielectric chiral metasurfaces. It includes the fundamental concepts, design strategies, and their implementation for applications in holographic displays, imaging and sensing, and detection. Moreover, an overview of chiral metasurfaces to generate the nonlinear effects, hosting bound states in the continuum, and the significant role of machine‐learning‐based design approaches are also discussed. Finally, some future developments are highlighted where chiral metasurfaces are expected to play a vital role.

show abstract

“…Recently, numerous chiral metasurfaces assisted by BICs lead to quasi‐BICs have been demonstrated in the literature. [ 94–104 ]…”

Section: Chirality Empowered By Bound States In the Continuum (Bics)mentioning

confidence: 99%

Section: Chirality Empowered By Bound States In the Continuum (Bics)mentioning

confidence: 99%

Section: Chirality Empowered By Bound States In the Continuum (Bics)mentioning

confidence: 99%

Section: Chirality Empowered By Bound States In the Continuum (Bics)mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Recent Progress on Plasmonic and Dielectric Chiral Metasurfaces: Fundamentals, Design Strategies, and Implementation

Khaliq

Nauman

Lee

2023

Advanced Optical Materials

View full text Add to dashboard Cite

show abstract

Nanoimprint Meta‐Device for Chiral Imaging

Zhang

Chen

Liang

et al. 2023

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

The polarization of light is a valuable information channel that has been studied extensively in optical devices. There has been limited progress in developing low‐refractive index contrast and large‐scale chiral meta‐devices that are easy to integrate and mass‐produce. In this image, a chiral imaging meta‐device with a large area and broadband chirality control is experimentally demonstrated. The centimeter‐scale Moiré meta‐device is achieved using nanoimprint technology. The Poynting vector and singularity features in the near field and chiral optical response in the far field are discussed. The proposed Moiré meta‐devices can achieve circular dichroism (CD) of more than 10%. Further chiral imaging harnessing CD mechanisms are demonstrated, which may lead to significant potential in various fields, including encryption and security, materials science, biochemistry, and medicine.

show abstract

Tunable Water‐Based Meta‐Lens

Yao

Chen

Lin

et al. 2023

Advanced Optical Materials

Self Cite

View full text Add to dashboard Cite

Water, the source of life, is a more abundant, low‐cost, and environment‐friendly candidate material for tunable meta‐devices compared to conventional approaches in the microwave region. Wavefront shaping can be flexibly manipulated by adjusting the shapes and temperature of water‐based meta‐atoms, but individual control of each meta‐atom is complicated and inconvenient, especially for continuous tunability. Here, we propose a design strategy based on the phase compensation mechanism to continuously tune the properties of water‐based meta‐lenses at 5 GHz. Integrated‐resonant units (IRUs) with coupled water pillars are carefully designed to effectively tailor the balance between polarization conversion efficiency and phase compensation. By changing the filling height of water in the designed meta‐lens from 10 to 60 mm, the focal length can be tuned from 228 to 424 mm. The off‐axis focusing of the meta‐lens is also demonstrated in which the deflection angle is adjustable from around 0° to 5°. This work will pave the way for designing tunable water‐based meta‐devices and facilitating their applications in microwave imaging systems.

show abstract

Chiral Bound States in the Continuum in Plasmonic Metasurfaces

Cited by 71 publications

References 59 publications

Recent Progress on Plasmonic and Dielectric Chiral Metasurfaces: Fundamentals, Design Strategies, and Implementation

Recent Progress on Plasmonic and Dielectric Chiral Metasurfaces: Fundamentals, Design Strategies, and Implementation

Nanoimprint Meta‐Device for Chiral Imaging

Tunable Water‐Based Meta‐Lens

Contact Info

Product

Resources

About