Article
Materials Science, Multidisciplinary
Yue Liu, Yu-Yao Cheng, Wen-Zhuang Ma, Yong-Chang Wu, Dan Meng, Yu-Shan Chen, Jing Liu, Yu Gu
Summary: This study developed a multiband metamaterial-absorbing device using an array of gold nano-crosses to absorb visible to near-infrared wavelengths. The device achieved five-band absorption in the 700-3000 nm range, with three peaks reaching 99% absorption and an average absorption of 96.4% after parameter adjustment and optimization. The device also functioned as a biosensor for virus identification and showed potential for designing ideal absorbers and nanosensors.
RESULTS IN PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Irina Zubritskaya, Rafael Cichelero, Ihar Faniayeu, Daniele Martella, Sara Nocentini, Per Rudquist, Diederik Sybolt Wiersma, Mark L. L. Brongersma
Summary: This study proposes a tunable metal-insulator-metal Fabry-Perot cavities that can dynamically control light for novel sensing, imaging and display applications. By utilizing reversible mechanical adaptations of a polymer network, dynamic tuning of optical resonances is demonstrated. Solid-state temperature-responsive optical coatings are developed to provide large, reversible and highly linear spectral tuning of FP resonances, allowing for reversible switching between reflective and absorbing states of the device with a modulation efficiency up to 79%.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Allan S. Johnson, Jordi Valls Conesa, Luciana Vidas, Daniel Perez-Salinas, Christian M. Gunther, Bastian Pfau, Kent A. Hallman, Richard F. Haglund, Stefan Eisebitt, Simon Wall
Summary: Solid-state systems can host a variety of thermodynamic phases that are challenging to study on the nanoscale due to the coexistence of multiple phases. Coherent diffractive imaging spectroscopy (CDIS) enables nanometer-scale resolution hyperspectral imaging of vanadium oxide, extracting refractive indices of different phases from a single sample without evidence of correlation-driven phase transitions. CDIS allows quantitative full-field x-ray spectromicroscopy for studying phase separation in extreme sample environments.
Article
Chemistry, Physical
M. A. Butt, N. L. Kazanskiy, S. N. Khonina
Summary: This paper presents a numerical analysis of a compact 1 x 2 plasmonic demultiplexer based on a metal-insulator-metal (MIM) waveguide. Two hollow circular cavities are side coupled to the bus waveguide on both sides, designed to resonate at the working wavelengths of 1310 nm and 1550 nm. The mechanism of light coupling to an MIM waveguide was not considered in previous studies, thus a silicon tapered mode converter is integrated to efficiently convert a dielectric to a plasmonic mode in the plasmonic demultiplexer. The footprint of the device is 6 μm x 6 μm. The crosstalk at P1 and P2 is about 14.07 dB and 13.67 dB for the transmission wavelength of 1310 nm and 1550 nm, respectively.
Article
Physics, Multidisciplinary
Fatemeh Aghaei, Hamid Bahador
Summary: This paper presents a micro-dimensional refractive index MIM sensor based on surface plasmon polaritons. By optimizing the dimensions of the resonators, the sensor achieved high sensitivity and reduced construction costs.
Article
Materials Science, Multidisciplinary
Ki Hoon Shin, Ji Yong Bae, Su Yong Lee, Docheon Ahn, Jiung Cho, Jongwon Yoon, Woong-Ki Hong, Jung Inn Sohn
Summary: In this study, stress engineering on MIT in VO2 nanobeams is achieved through core-shell heterostructures, enabling uniform axial stress distribution and control of phase transition pathways. This research can lead to better engineering of phase transitions in strongly correlated materials, providing the beneficial effect of suppressing inhomogeneities during the MIT process.
APPLIED MATERIALS TODAY
(2021)
Article
Optics
Fatemeh Abdolalipour, Maryam Pourmahyabadi
Summary: This article presents a plasmonic filter scheme consisting of a nanodisk cavity and two T-shaped MIM waveguides, which achieves perfect transmission peak by optimizing structure parameters. The proposed structure exhibits high transmission rate and quality factors in the optical communication wavelength range, and a design of a two-channel demultiplexer is also introduced.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Yunyan Wang, Yiping Huo, Pengfei Cui, Meina Song, Chen Zhao, Zuxiong Liao, Tong Liu, Zhongyue Zhang, You Xie
Summary: In this study, a metal-insulator-metal (MIM) waveguide with two silver baffles was used to create a series of Fano resonances. Additional rectangular and U-shaped cavities were introduced to create more resonances. The generation mechanism, effects of structural parameters, and potential applications in optical devices were studied. The structure showed high sensitivity and figure of merit (FOM) values, making it suitable for optical switching, filters, and sensors.
JOURNAL OF COMPUTATIONAL ELECTRONICS
(2023)
Article
Chemistry, Physical
Yuan-Fong Chou Chau
Summary: The study investigates a multiple-mode metal-insulator-metal plasmonic sensor with four coupled bowtie resonators, showing high sensitivity and figure of merit in visible and near-infrared wavelength ranges. The proposed sensor structure demonstrates a tunable way to enhance sensitivity and FOM, surpassing results reported in other literature. This multi-mode sensor has practical prospects for integrated optics circuits and nanophotonics devices.
Article
Nanoscience & Nanotechnology
Guangrong Wang, Dan Chen, Tieqiang Wang, Hongxu Chen, Xuemin Zhang, Yunong Li, Liying Zhang, Fuqiang Fan, Yu Fu
Summary: A new method for preparing a lab-on-fiber sensing system using a responsive Fabry-Perot optical resonance cavity on optical fibers was reported. The system shows high sensitivity, excellent repeatability, and rapid response rate, making it suitable for applications in medical diagnosis, in vivo detection, and public security.
Article
Optics
Shiva Khani, Mohsen Hayati
Summary: This paper proposes three novel refractive index sensors based on H-shaped cavities and metal-insulator-metal waveguides, with the Q-factor and FOM value of the sensors increasing by coupling multiple cavities. The structures have single-mode spectra in a wide wavelength range and simple fabrication processes, making them suitable for integrated optical circuits for optical communication purposes. The proposed topology can easily be redesigned and adapted with different numbers of cavities without disturbing its single-mode spectrum.
OPTICS COMMUNICATIONS
(2022)
Article
Optics
Asieh Karimi, Masoud Jabbari, Ghahraman Solookinejad
Summary: This study proposes a band-stop filter hybrid graphene nanostructure that utilizes the unique properties of graphene to modulate and filter light transmission by adjusting its chemical potential. Numerical calculations show that the transmission properties can be modified by controlling the chemical potential, allowing for wavelength-specific filtering.
Article
Optics
Qiqiang Niu, Yiping Huo, Yiyuan Guo, Qian He, Xiangxiang Hao, Meina Song, Yunyan Wang, Pengfei Cui
Summary: A plasmonic structure with triple Fano resonances has been proposed and studied, showing the potential to independently modulate and generate Fano resonances by changing structural parameters and breaking symmetry, thereby improving structure performance.
Article
Chemistry, Physical
Mohammad Ghanavati, Mohammad Azim Karami
Summary: A multi-resonance plasmonic sensor based on a metal-insulator-metal (MIM) waveguide is developed for temperature and refractive index (RI) detection. Different dielectrics are utilized for temperature investigation, and the sensor exhibits high temperature sensitivity and RI sensitivity, indicating its potential applications in optical and photonic circuits.
Article
Nanoscience & Nanotechnology
Junya Chen, Huifang Zhang, Xin Gu, Ying He, Hongshi Ren
Summary: We study the multiple plasmon-induced transparencies (PIT) in the waveguide structure based on bulk Dirac semimetal (BDS) containing multiple side-coupled T-shaped cavities. The transmission characteristics strongly depend on the geometric parameters, Fermi level of BDS, and refractive index of the medium. Simulating the transmission spectrum of three T-shaped cavities waveguide structure shows potential applications in designing lenses, high-capacity storage devices, and new filters.
JOURNAL OF NANOPHOTONICS
(2023)
Article
Physics, Applied
Yangyang Shi, Rui Yang, Chenjie Dai, Chengwei Wan, Shuai Wan, Zhongyang Li
Summary: This study proposes a novel design of a hybrid metallic grating metasurface (HMGM) with two different ridge widths, which enables broadband diffraction-free on-chip propagation in the visible frequency range. By optimizing and hybridizing ridges of different widths, effective modification of surface plasmon dispersion is achieved, leading to broadband diffraction-free characteristics. The HMGM facilitates enhanced surface plasmon polaritons propagation and strong confinement of surface plasmonic field to the deep-subwavelength scale, allowing for potential applications in on-chip plasmonic devices such as sub-diffraction resolution imaging, hyperlenses, and photon routing.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
Chengwei Wan, Chenjie Dai, Shuai Wan, Rui Yang, Yangyang Shi, Zhongyang Li
Summary: The novel polarization-insensitive meta-grating combines plasmonic and grating effects, directing incident photons without polarization interference, making it suitable for various practical applications.
Article
Nanoscience & Nanotechnology
Jiao Tang, Zhe Li, Shuai Wan, Zejing Wang, Chengwei Wan, Chenjie Dai, Zhongyang Li
Summary: The study demonstrates the feasibility of angular multiplexing switchable nanoprinting with independent amplitude encryption based on visible-frequency metasurfaces, paving the way for promising applications in optical information encryption/concealment, multifunctional switchable devices, and advanced eyeglass-free 3D stereoscopic displays.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Chengwei Wan, Chenjie Dai, Jian Zhang, Shuai Wan, Zile Li, Guoxing Zheng, Xuefeng Zhang, Zhongyang Li
Summary: This study introduces a new type of all-metallic 3D meta-prism by hybridizing localized surface plasmonic resonances (LSPR) and blazed grating diffraction, to achieve strong polarization-dependent behaviors for steering broadband visible light to drastically inverse directions. The meta-prism allows for high-efficiency splitting of different visible light (green, blue, and red) and also enables multifunctional surface with polarization-/wavelength-multiplexing wavefront-shaping functions. Its simplicity and versatility in broadband beam steering make it suitable for various applications such as dichroic-prism splitters and multifunctional meta-mirrors.
Article
Materials Science, Multidisciplinary
Shuai Wan, Chengwei Wan, Chenjie Dai, Zhe Li, Jiao Tang, Guoxing Zheng, Zhongyang Li
Summary: This study proposes a general strategy for angular-multiplexing metasurfaces based on building up an independent-encoded amplitude/phase dictionary, which provides a new platform for achieving complexity of functions for angular resolved illumination, and expanding the manipulative capabilities for optical multiplexing.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Zhe Li, Chengwei Wan, Chenjie Dai, Jian Zhang, Guoxing Zheng, Zhongyang Li
Summary: A new liquid-immersive mechanism with metasurfaces for active beam-steering has been proposed and experimentally realized, enabling switchable beam-steering with a large reflection angle in the broadband visible regime. This innovative approach provides a straightforward tuning strategy for structural patterning and large-area implementation, promising potential applications in tunable display, directional emission, sensing technologies, etc.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Chenjie Dai, Chengwei Wan, Zhe Li, Zejing Wang, Rui Yang, Guoxing Zheng, Zhongyang Li
Summary: The new dual-Fabry-Perot nanocavity film stack offers three degrees of freedom in light modulation, allowing for flexible light modulation and imaging. This design can simultaneously encrypt/conceal grayscale nanoprinting images and project far-field holographic images, enriching the optical applications of thin-film nanocavities.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zejing Wang, Chenjie Dai, Jian Zhang, Dandan Wang, Yangyang Shi, Xinyu Wang, Guoxing Zheng, Xuefeng Zhang, Zhongyang Li
Summary: In this study, a multiplexing imaging tunable strategy based on stepwise metal-hydrogel-metal (MHM) nanocavities is explored, enabling dynamic switchable red-green-blue multichannel nanoprinting in real-time. This new approach holds promise for applications in tunable imaging display/storage/encryption, humidity optical sensors, and next-generation dynamic augmented reality technology.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Chengwei Wan, Zhe Li, Shuai Wan, Chenjie Dai, Jiao Tang, Yangyang Shi, Zhongyang Li
Summary: The article discusses the transition of meta-optics towards active controllable devices and introduces a practical solution, the electric-driven liquid-crystal-integrated metasurface (ELIM), for advanced dynamic display. By carefully selecting building block modules and leveraging anisotropic characteristics, the technology enables dynamic exhibitions of dual-nanoprinting and dual-holography images.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Optics
Chengwei Wan, Chenjie Dai, Shuai Wan, Zhe Li, Yangyang Shi, Zhongyang Li
Summary: The Janus metasurface is a new category of 2D architecture that explores wavevector direction and enables asymmetric transmission. The proposed dual-encryption Janus metasurface design combines a simple monolayer-nanotextured metasurface with a half-wave plate film to create independent imaging encryptions for both forward and backward directions. This approach offers broadband visible-frequency operation, simplicity in design and nanofabrication, and potential applications in various fields like on-chip integration, telecommunications, encryption, information processing, and communication.
Article
Optics
Yangyang Shi, Rui Yang, Chenjie Dai, Chengwei Wan, Zhongyang Li
Summary: This paper introduces a visible-frequency on-chip dual-layer design with cascading one-dimensional plasmonic metawires and metagratings, which effectively manipulates surface plasmon polariton wavefronts and exhibits on-chip asymmetric beam-steering functionality. The 1D metawires enable broadband beam-deflection on-chip with high conversion efficiency. The cascading plasmonic coupling between metawires/metagrating is crucial for on-chip plasmonic device development.
Article
Chemistry, Multidisciplinary
Zejing Wang, Chenjie Dai, Zhe Li, Zhongyang Li
Summary: In this study, we proposed and successfully demonstrated the merging of multidirectional beams in free space using an inverse-designed meta-grating architecture. This technology has potential applications in future optical systems and can facilitate the development of miniature optical devices and integration.
Article
Optics
Yangyang Shi, Chengwei Wan, Chenjie Dai, Shuai Wan, Yang Liu, Chen Zhang, Zhongyang Li
Summary: Researchers propose on-chip integrated meta-optics for high-performance multiplexing semi-transparent screen display and simultaneous augmented reality holographic display. By engineering on-chip meta-diatom displacement and interference, versatile optical controllability is achieved in both amplitude and phase, and zeroth-order diffraction interference is eliminated.
Article
Chemistry, Multidisciplinary
Xinyu Wang, Chenjie Dai, Xiaoli Yao, Tong Qiao, Mingliang Chen, Shifeng Li, Zhen Shi, Miao Wang, Zengli Huang, Xin Hu, Zhongyang Li, Jian Zhang, Xuefeng Zhang
Summary: This study utilized inclined 2D aluminum nanopillar arrays to realize asymmetric photonic structures, demonstrating the asymmetric angle-dependence for multicolor displays. The results confirmed the practicality of controlled asymmetric color display with varied observing angles.
