Article
Chemistry, Multidisciplinary
Maryam Hajji, Michele Cariello, Cameron Gilroy, Martin Kartau, Christopher D. Syme, Affar Karimullah, Nikolaj Gadegaard, Aurelie Malfait, Patrice Woisel, Graeme Cooke, William J. Peveler, Malcolm Kadodwala
Summary: The use of chiral quantum metamaterials in nano-cavities can significantly enhance the detection sensitivity of chiral molecules, with the ability to easily detect six biomolecules per cavity. This phenomenon is attributed to significant local changes in the optical density of states caused by the introduction of biomolecules, which are invisible in classical light-scattering measurements.
Article
Chemistry, Multidisciplinary
Mariachiara Manoccio, Marco Esposito, Elisabetta Primiceri, Angelo Leo, Vittorianna Tasco, Massimo Cuscuna, Dmitry Zuev, Yali Sun, Giuseppe Maruccio, Alessandro Romano, Angelo Quattrini, Giuseppe Gigli, Adriana Passaseo
Summary: This study demonstrates the sensing capabilities of a chip-based metamaterial, combining 3D chiral geometry with a functional core-shell nanoarchitecture. The modified optical response of the chiral metamaterial allows for analysis in complex environments and efficient interaction with biomolecules, leading to high sensitivity detection of biomarkers. Measurements in spiked solution and human serum show the potential for early diagnostics and diseases progression monitoring in a range not accessible with common immunological assays, opening new perspectives for next-generation biomedical systems.
Article
Materials Science, Multidisciplinary
Dominic J. P. Koyroytsaltis-McQuire, Cameron Gilroy, Laurence D. Barron, Nikolaj Gadegaard, Affar S. Karimullah, Malcolm Kadodwala
Summary: Chiral near fields created by light interaction with nanostructures have potential applications in sensing and metrology technologies. This study combines numerical modeling and experimental measurements to illustrate important factors influencing chiral sensing, including enantiomeric sensitivity of localized and lattice chiral resonances and the influence of the structure of chiral media. The study also highlights the amplification of sensing capabilities of localized chiral plasmonic modes by surface morphology and defects.
ADVANCED PHOTONICS RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Xiu Yang, Yong Liu, Fei-Liang Chen, Qian-Qi Lin, Rohit Chikkaraddy, Shan-Shan Huang, Shi-Lin Xian, Yi-Dong Hou, Jing-Lei Du, Liang-Ping Xia, Chun-Lei Du
Summary: This research introduces a stepwise colloidal lithography technique for the fabrication of scalable and complex chiral metamaterials (CMs). The use of multiple-step depositions expands the range of chiral patterns, and a flexible chiral device based on PDMS is designed with good performance and stability.
Article
Chemistry, Multidisciplinary
Ufuk Kilic, Matthew Hilfiker, Alexander Ruder, Rene Feder, Eva Schubert, Mathias Schubert, Christos Argyropoulos
Summary: This article demonstrates how nanohelical metamaterials can achieve spectrally tunable, extremely large, and broadband chiroptical response, addressing the challenges in controlling and enhancing chiral light-matter interactions.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jussi Kelavuori, Viatcheslav Vanyukov, Timo Stolt, Petri Karvinen, Heikki Rekola, Tommi K. Hakala, Mikko J. Huttunen
Summary: By breaking the symmetry of the nanoparticle surroundings, the properties of high quality factor SLRs can be easily modified. We demonstrated how changing the refractive index of the surrounding immersion oil by controlling the ambient temperature of the device can increase the quality factor of the SLR. These results show accurate and reversible modification of SLR properties, opening up possibilities for tunable SLR-based photonic devices.
Article
Nanoscience & Nanotechnology
Beatriz Castillo Lopez de Larrinzar, Chushuang Xiang, Edson Rafael Cardozo de Oliveira, Norberto Daniel Lanzillotti-Kimura, Antonio Garcia-Martin
Summary: The possibility of creating and manipulating nanostructured materials has led to the exploration of new strategies to control electromagnetic properties. A simple structure based on crossed elongated bars is presented, where the dominating cross-section absorption or scattering is defined by left-handedness or right-handedness, with a 200% difference from its counterpart. This chiral system opens up possibilities for enhanced coherent phonon excitation and detection.
Review
Optics
Arash Ahmadivand, Burak Gerislioglu
Summary: The text discusses the development of photonic biosensors and their applications in detecting biomarkers and diseases, as well as the use of metamaterials in photonic biosensors and emerging technologies in the modern pharmaceutical industry.
LASER & PHOTONICS REVIEWS
(2022)
Article
Physics, Multidisciplinary
Hui Xu, Xiaojing Wang, Zhiquan Chen, Xuelei Li, Longhui He, Yulan Dong, Guozheng Nie, Zhihui He
Summary: A simple optical tunable device, using a periodic grating-like structure with graphene and silicon, can achieve various optical functions through surface plasmon resonance. The device's induced transparency phenomenon is well-fitted by the coupled mode theory, providing a foundation for fast tunable function and integration. With a high group index and group delay, the device can serve as a good construction idea for slow light devices and provide theoretical help for optical tunable reflectors, absorbers, and slow light devices.
NEW JOURNAL OF PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Ming Li, Hui Xu, Xiaojie Yang, Haiye Xu, Pengcheng Liu, Longhui He, Guozheng Nie, Yulan Dong, Zhiquan Chen
Summary: We introduce a simple metamaterial structure based on a monolayer graphene, consisting of a graphene block and two graphene strips. This innovative design utilizes the interaction between bright and dark modes to achieve plasma-induced transparency (PIT) phenomenon generation. Comprehensive theoretical calculations and finite difference time domain (FDTD) simulations confirm the findings. Furthermore, we explore the PIT phenomenon at various Fermi energy levels and investigate the slow light effect in relation to structural parameters, Fermi energy level, and carrier mobility. By increasing the carrier mobility from 0.4 to 3.4 m(2)/(V.s), the group index can be elevated from 80 to 430. Hence, this graphene-based metamaterial shows promise in inspiring novel approaches for designing modulators, optical switches, and devices for manipulating slow light.
RESULTS IN PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Yujing Ran, Zhaotan Jiang, Zhi Wang
Summary: In this study, all-nitride perfect broadband metamaterial absorbers were designed and studied, which achieve high absorption performance within specific wavelength ranges and exhibit polarization independence and high absorption at large incidence angles. These all-nitride absorbers have promising potential in related applications.
RESULTS IN PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Wei Cui, Lingqiao Li, Weiwei Xue, Hui Xu, Zhihui He, Zhimin Liu
Summary: By studying the MXene/Au-based metamaterial, enhanced wide-band absorption with a maximum absorption rate of 0.99 can be achieved, and the absorption can be effectively tuned by structural parameters and polarization, which is important for designing plasmonic absorbers.
RESULTS IN PHYSICS
(2021)
Review
Optics
Alexander Dorodnyy, Jasmin Smajic, Juerg Leuthold
Summary: Mie scattering is used to manipulate electromagnetic fields for various applications such as strong resonant enhancement, perfect absorption of radiation, and polarization/wavelength selectivity. Recent applications include light spectrum control, detection, non-linear effects enhancement, and emission. It is also demonstrated that a periodic arrangement of Mie scatterers can lead to a significant absorption enhancement in weakly absorbing layers.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Lukas Ohnoutek, Hyeon-Ho Jeong, Robin Raffe Jones, Johannes Sachs, Ben J. Olohan, Dora-Maria Rasadean, Gheorghe Dan Pantos, David L. Andrews, Peer Fischer, Ventsislav K. Valev
Summary: This study reveals the hidden third-harmonic optical properties upon CPL illumination, referred to as THRS OA, by demonstrating a new effect in hyper-Rayleigh scattering, where the intensity depends on the chirality of the scatterers.
LASER & PHOTONICS REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Dimitrios Papas, Jun-Yu Ou, Eric Plum, Nikolay I. Zheludev
Summary: Metastable optically controlled devices (optical flip-flops) are important in various applications. However, the weak optical nonlinearities have hindered the development of low-power bistable devices. This work introduces a new type of volatile optical bistability in a hybrid nano-optomechanical device, which can be switched between bistable optical states with microwatts of optical power and its volatile memory can be erased by removing the acoustic signal.
Article
Chemistry, Multidisciplinary
Pavana Siddhartha Kollipara, Zhihan Chen, Yuebing Zheng
Summary: Optothermal manipulation is a versatile technique that combines optical and thermal forces to control micro-/nanoparticles and biological entities. It overcomes the limitations of traditional optical tweezers and has a wide range of applications in biology, nanotechnology, and robotics. However, there are current challenges in experimental and modeling aspects, which need to be addressed for further advancements in this field.
Article
Chemistry, Multidisciplinary
Hongru Ding, Pavana Siddhartha Kollipara, Kan Yao, Yiran Chang, Daniel J. Dickinson, Yuebing Zheng
Summary: Optical tweezers offer contact-free manipulation of small objects, but require sophisticated imaging and feedback systems for controlled motion. We develop an optothermal platform that enables multimodal manipulation of micro/nanoparticles along various surfaces, including both synthesized particles and biological cells. With this platform, we can achieve localized control of biological functions on rough surfaces of live worms and their embryos. This multimodal optothermal platform will be a powerful tool in life sciences, nanotechnology, and colloidal sciences.
Article
Chemistry, Physical
Jie Fang, Suichu Huang, Kan Yao, Tianyi Zhang, Mauricio Terrones, Wentao Huang, Yunlu Pan, Yuebing Zheng
Summary: Tunable exciton-photon couplings have been demonstrated in monolayer TMDs, showing strong bright-exciton-photon couplings and revealing the novel interactions between bright and dark exciton-photon hybrids in a single optical cavity. The waveguide mode can be tuned in wavelengths by controlling the spacer thickness, and the relative contribution from the antenna mode coupled with dark excitons can be dynamically enlarged by increasing the excitation angle. This study opens new possibilities in tunable QED and provides insights into the coexistence of bright and dark exciton-photon couplings.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Anand Swain, Zhihan Chen, Yaoran Liu, Zilong Wu, Yuebing Zheng
Summary: Thermal-tape-transfer printing enables the fabrication of large-scale and homogeneous moire chiral metamaterials (MCMs) with arbitrary twist angles and tunable optical chirality. This opens doors to various biological, photonic, and optoelectronic applications.
Review
Chemistry, Multidisciplinary
Yaoran Liu, Zilong Wu, Daniel W. Armstrong, Herman Wolosker, Yuebing Zheng
Summary: The chirality of small metabolic molecules plays an important role in physiological processes and health assessment. Abnormal ratios of enantiomers in biofluids and tissues are associated with various diseases. Chiral small molecules show great potential as biomarkers for disease diagnosis, prognosis, drug-effect monitoring, pharmacodynamics, and personalized medicine. However, analyzing small chiral molecules in clinical settings remains challenging due to their diversity and low concentration levels.
NATURE REVIEWS CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Zhihan Chen, Hongru Ding, Pavana Siddhartha Kollipara, Jingang Li, Yuebing Zheng
Summary: Researchers propose a novel optical feedback control system that can mimic collective motion observed in living objects. This system allows for experimental investigation of velocity alignment in a perturbed environment, and spontaneous formation of different moving states and dynamic transitions were observed.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Pavana Siddhartha Kollipara, Xiuying Li, Jingang Li, Zhihan Chen, Hongru Ding, Youngsun Kim, Suichu Huang, Zhenpeng Qin, Yuebing Zheng
Summary: This article introduces the low-temperature opto-thermophoretic tweezers (HOTTs) technology, which achieves low-power trapping of diverse colloids and biological cells at sub-ambient temperatures through an environmental cooling strategy. At the same time, HOTTs can also suppress thermal damage. With their noninvasiveness and versatile capabilities, HOTTs have great potential for research and applications in materials science and biotechnology.
NATURE COMMUNICATIONS
(2023)
Editorial Material
Optics
Youngsun Kim, Yuebing Zheng
Summary: By decoupling temperature and flow fields, ISO-FLUCS enables precise control over fluid manipulation while minimizing thermal damage through symmetry-correlated laser scan sequences. Quasi-isothermal optofluidic streaming is achieved.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Marcel Herber, Ana Jimenez Amaya, Nicklas Giese, Bharath Bangalore Rajeeva, Yuebing Zheng, Eric H. Hill
Summary: The printing of layered silicate nanoclays using a laser-directed microbubble was established, and the influence of surface chemistry on the resulting assembly was studied. This work also demonstrated the potential of this method in fabricating ultrasensitive molecular sensors.
ACS APPLIED MATERIALS & INTERFACES
(2023)