Article
Chemistry, Multidisciplinary
Xianyou Wang, Yunqi Yuan, Xi Xie, Yuquan Zhang, Changjun Min, Xiaocong Yuan
Summary: Since the discovery of graphene, its excellent physical properties have greatly improved the performance of optoelectronic devices. In this study, graphene is introduced to the field of optical-tweezer technology and a new graphene-based opto-thermoelectric tweezer is demonstrated. Compared with traditional optical tweezers, this technology significantly reduces the required incident light energy and offers advantages such as a broader working bandwidth and larger working area. The higher thermal conductivity and uniformity of graphene make it easier to process, and even monolayer graphene provides stable trapping for particles. This work showcases the potential of graphene in optical-tweezer technology and its applications in various fields.
ADVANCED MATERIALS
(2022)
Article
Metallurgy & Metallurgical Engineering
G. D. Tsibidis, E. Stratakis
Summary: This study emphasizes the influence of the substrate material on the thermal characteristics of irradiated films, particularly with a greater impact at smaller film sizes. Silicon and fused silica were chosen as substrate materials, and the thermal response and damage thresholds of irradiated solids were evaluated. The significant influence of the substrate can provide reference for the design of laser-based fabrication setups and processing schemes.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2022)
Article
Optics
Roukuya Mamuti, Takao Fuji, Tetsuhiro Kudo
Summary: A new method for opto-thermophoretic trapping using a 2 μm Tm-doped fiber laser is proposed. The trapping is based on strong absorption of infrared laser beam by water solution, generating a local temperature gradient. The phenomenon is found to be dependent on material, particle size, and laser power, with 2 μm being the longest wavelength used for such trapping to date.
Article
Materials Science, Multidisciplinary
P. A. Chate, D. J. Sathe, S. L. Hake
Summary: Nickel selenide thin films were synthesized on amorphous templates using a dip method. The films exhibited polycrystalline nature and high absorptivity with a direct type of transition.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Andrea Tognazzi, Marco Gandolfi, Bohan Li, Gina Ambrosio, Paolo Franceschini, Rocio Camacho-Morales, Alfonso Carmelo Cino, Camilla Baratto, Domenico de Ceglia, Dragomir Neshev, Costantino De Angelis
Summary: This article investigates the opto-thermal properties of plane multilayered structures with phase-change materials for optical limiters. The results show that such structures can act as self-activating devices by utilizing light-to-heat conversion to induce a phase change. This opens up new opportunities for multi-layer self-activating optical limiters.
OPTICAL MATERIALS EXPRESS
(2023)
Article
Chemistry, Analytical
Ruping Deng, Yuquan Zhang, Xianyou Wang, Xi Xie, Yuan Song, Jing Bu, Changjun Min, Xiaocong Yuan
Summary: This study demonstrates the implementation of a graphene-based thermoelectric optical tweezers system for in situ intracellular Raman spectral detection. The system not only strengthens the trap for biological cells but also enhances intracellular Raman signals by accelerating metallic nanoparticles into the cells. This promising approach has potential applications in cytobiology research and the detection of complex intracellular life processes.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Multidisciplinary Sciences
Matthew G. Clark, Gil A. Gonzalez, Yiyang Luo, Jesus A. Aldana-Mendoza, Mark S. Carlsen, Gregory Eakins, Mingji Dai, Chi Zhang
Summary: Precision control of molecular activities and chemical reactions in live cells has been a long-standing goal for life scientists. In this study, researchers developed a real-time precision opto-control technology that can detect a chemical-specific optical response from molecular targets and precisely control photoswitchable microtubule polymerization inhibitors in cells.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Xiaoyi Xu, Tianxin Wang, Pengcheng Chen, Chao Zhou, Jianan Ma, Dunzhao Wei, Huijun Wang, Ben Niu, Xinyuan Fang, Di Wu, Shining Zhu, Min Gu, Min Xiao, Yong Zhang
Summary: Lithium niobate (LiNbO3) is a promising material for reconfigurable three-dimensional ferroelectric domain engineering, and recent breakthroughs in nanophotonics have advanced the development of high-speed electro-optic modulators, frequency combs, and broadband spectrometers. A non-reciprocal near-infrared laser-writing technique is demonstrated for nanoscale domain engineering in LiNbO3, providing a pathway for controllable domain engineering in transparent ferroelectric crystals.
Review
Chemistry, Multidisciplinary
Shaofeng Liu, Linhan Lin, Hong-Bo Sun
Summary: The optical manipulation of tiny objects is crucial for materials science and life science, involving direct and indirect optomechanical coupling. Traditional optical tweezers require high optical power and rigorous optics, while opto-thermophoretic manipulation techniques feature low optical power and high efficiency as a new emerging approach.
Article
Optics
Soumendra Nath Bandyopadhyay, Tushar Gaur, Debabrata Goswami
Summary: This study presents a newly developed model to predict the stability of traps in real optical trapping scenarios, which could provide valuable information on the selection of solvents, probes, and optical parameters. The differences between continuous wave and femtosecond pulsed laser mediated optical trapping in terms of scattering and gradient forces in the Rayleigh regime are highlighted.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Optics
Yongguang Zhao, Li Wang, Weidong Chen, Pavel Loiko, Xavier Mateos, Xiaodong Xu, Ying Liu, Deyuan Shen, Zhengping Wang, Xinguang Xu, Uwe Griebner, Valentin Petrov
Summary: This study successfully generates ultrashort-pulse Hermite- and Laguerre-Gaussian laser modes with a pulse duration of around 100 fs from a compact solid-state laser in combination with a simple single-cylindrical-lens converter, pushing the advancement of such femtosecond structured laser sources into the 2-mu m spectral region. The negligible beam astigmatism, broad optical spectra, and almost chirp-free pulses highlight the high reliability of this laser source.
PHOTONICS RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Jingang Li, Pavana Siddhartha Kollipara, Ya Liu, Kan Yao, Yaoran Liu, Yuebing Zheng
Summary: Motors that can convert different forms of energy into mechanical work play a crucial role in the development of human societies. The miniaturization of motors to the nanoscale is challenging due to the strong Brownian motion in liquid environments. In this study, we develop light-driven optothermocapillary nanomotors that can operate on solid substrates, effectively suppressing the interference of Brownian motion. Our nanomotors demonstrate robust orbital rotation and have the capability to power functional devices at the nanoscale.
News Item
Optics
Xiaohe Zhang, Bing Gu, Cheng-Wei Qiu
Summary: Researchers have proposed a new method that can measure the weak force of a single microscopic particle.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Hongshu You, Yachao Zhang, Yanlei Hu, Yuegan Song, Cheng Xue, Shengyun Ji, Rui Li, Longfu Li, Jiawen Li, Dong Wu, Jiaru Chu
Summary: This paper presents a facile method for constructing deformable Kirigami structures using femtosecond laser on shape memory polymer, showcasing simplicity, neglectable material loss, and independence from external mechanical force. The controlled deformation and programmable structure preparation provided by this method hold great promise for broad applications in mechanical metamaterials and bioinspired functional surfaces.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Engineering, Electrical & Electronic
Lijie Zhao, Chunbo Zhao, Chuanqing Xia, Zhen Zhang, Tengfei Wu, Haiyun Xia
Summary: A femtosecond laser metrology with nanometer precision and dynamic range of centimeter incorporating time-stretch interferometry and phase delay retrieval method is proposed and experimentally demonstrated in this study. The method successfully measures preset displacements with high accuracy and stability.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Review
Chemistry, Multidisciplinary
Shao-Feng Liu, Zheng-Wei Hou, Linhan Lin, Zhengcao Li, Hong-Bo Sun
Summary: 3D laser nanoprinting revolutionizes manufacturing by allowing maskless fabrication of 3D nanostructures at a resolution beyond the optical diffraction limit. It offers printed structures with unique physical, chemical, or mechanical properties not seen at the macro scale. However, its reliance on photopolymerization limits its usability to certain materials and functionalities. The ability to print diverse functional materials and the development of laser nanoprinting techniques beyond photopolymerization open up exciting new applications in nanophotonics and microelectronics.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Guan-Yao Huang, Linhan Lin, Shuang Zhao, Wenbin Li, Xiaonan Deng, Simian Zhang, Chen Wang, Xiao-Ze Li, Yan Zhang, Hong -Hua Fang, Yixuan Zou, Peng Li, Benfeng Bai, Hong -Bo Sun, Tairan Fu
Summary: Excitons are quasi-particles composed of electron-hole pairs and play a crucial role in determining the optical properties of monolayer TMDs. Manipulating their charge states in a reversible manner remains challenging. By utilizing femtosecond-laser-driven atomic defect generation, electron transfer, and surface molecular desorption/adsorption, we have developed an all-optical approach to control the charge states of excitons in monolayer MoS2, enabling reconfigurable optical encoding.
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
Chemistry, Multidisciplinary
Jie Fang, Kan Yao, Mingsong Wang, Zhuohang Yu, Tianyi Zhang, Taizhi Jiang, Suichu Huang, Brian A. Korgel, Mauricio Terrones, Andrea Alu, Yuebing Zheng
Summary: In this study, we achieved on-demand exciton-polariton emission from a wide range of TMDs at room temperature by hybridizing excitons with broadband Mie resonances. The system demonstrated stable polaritonic photoluminescence and multiple Rabi splittings.
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)
