Article
Chemistry, Analytical
Chongqi Zhou, Yang Xu, Xiaonan Zhang, Zhangyan Li, Tian Guan, Yanhong Ji, Yanhong Ji
Summary: A modified weak measurement scheme, rotatory biased weak measurement, is proposed to significantly improve the sensitivity and resolution of the total internal reflection sensor. The method introduces an additional phase in the post-selected procedure and generates an extinction point in the spectrum distribution. The performance of the sensor is analyzed, and an optimal refractive index resolution of 4 x 10(-7) RIU is demonstrated.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Optics
F. De Zela
Summary: The physical meaning of the quantum weak value is still debated, but it has become a widely used practical tool. We provide closed-form expressions that can untie weak values from weak measurements, allowing for the inclusion of strong measurements within the framework of weak values.
Article
Instruments & Instrumentation
Bowen Song, Binglin Chen, Chen Yu, Hua Yang
Summary: An optical rotation bio-sensor based on the photonic spin Hall effect was used to detect the concentration variations of chiral molecules and achieved a high resolution.
Article
Chemistry, Physical
Jia Meng, Jae Bem You, Gilmar F. Arends, Hao Hao, Xiaoli Tan, Xuehua Zhang
Summary: This study presents a method using a quasi-2D microfluidic device combined with total internal reflection microscopy for in situ observation of phase separation. Diffusion-driven mixing allows for controlled composition of the mixture in the main channel. This approach is demonstrated for observing asphaltene precipitation and beta-alanine crystallization.
EUROPEAN PHYSICAL JOURNAL E
(2021)
Article
Chemistry, Analytical
Teliang Zhang, Xueliang Wang, Youjun Zeng, Songfeng Huang, Xiaoqi Dai, Weifu Kong, Qian Liu, Jiajie Chen, Junle Qu, Yonghong Shao
Summary: Surface plasmon resonance microscopy (SPRM) is widely used in biological fields for its high spatial resolution and label-free detection. In this study, a home-built SPRM system based on total internal reflection (TIR) was utilized to study the imaging of a single nanoparticle. By using a ring filter and deconvolution algorithm, the parabolic tail of the nanoparticle image was removed, achieving a spatial resolution of 248 nm. Additionally, specific binding between human IgG antigen and goat anti-human IgG antibody was successfully measured using TIR-based SPRM, demonstrating its capability in imaging sparse nanoparticles and monitoring biomolecular interactions.
Article
Chemistry, Physical
Jing Zeng, Wen Fan, Kangyu Jia, Shuhua Tu, Limin Wu
Summary: A novel retroreflective structural color film (RSCF) based on interference and total internal reflection (TIR) was reported. The film consists of a microscale polymer hemisphere array, displaying different colors under coaxial and noncoaxial illumination and observation. Additionally, an elastic polyurethane-based RSCF can exhibit dynamically changing colors during uniaxial tensile/compressive deformation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Ernesta Buzavaite-Verteliene, Vincentas Maciulis, Justina Anulyte, Tomas Tolenis, Algirdas Baskys, Ieva Plikusiene, Zigmas Balevicius
Summary: In this study, a one-dimensional photonic crystal with an additional TiO2 layer, supporting Bloch surface waves (BSW), was used to enhance the signal sensitivity for protein interaction detection. The results showed that the BSW component of the photonic crystal sample with an additional TiO2 layer had higher sensitivity.
Article
Chemistry, Multidisciplinary
Nathaniel E. Sturniolo, Krista Hirsch, Caleb H. Meredith, Beau C. Beshires, Shawn Khanna, Malak S. Rayes, Michael A. Gallegos, Shannon McGee, Bryan Kaehr, Lauren D. Zarzar
Summary: This article presents an experimental investigation and optical modeling of structural coloration produced from total internal reflection interference within 3D microstructures. The iridescence generated for various microgeometries is modeled, examined, and rationalized using ray-tracing simulations, color visualization, and spectral analysis techniques. The observed iridescence is deconstructed into elementary components and linked to ray trajectories, which emanate from the illuminated microstructures. The findings provide a conceptual framework for understanding and tailoring the optical and iridescent properties of microstructured surfaces.
ADVANCED MATERIALS
(2023)
Article
Acoustics
Hongfei Zhu, Timothy F. Walsh, Bradley H. Jared, Fabio Semperlotti
Summary: This study discusses the design and application of a nonlocal elastic metasurface for achieving broadband passive vibration isolation in a complex structural assembly. The experimental results confirm the significant vibration isolation capabilities of the nonlocal metasurface, even under non-ideal incidence conditions, extending the validity of the results. Additionally, the study demonstrates that a planar metasurface can be morphed into a curved interface while maintaining full wave control capabilities.
JOURNAL OF SOUND AND VIBRATION
(2022)
Article
Engineering, Electrical & Electronic
Yang Xu, Lixuan Shi, Le Liu, Wenyue Xie, Tian Guan, Xinhui Xing, Cuixia Guo, Dong He, Suyi Zhong, Hailong Zhang, Chongqi Zhou, Zhangyan Li, Yonghong He
Summary: A method to improve the detection accuracy of a weak measurement system of optical rotation was proposed by determining the optimal total phase difference of the system. The regime with the smallest ratio of system noise level to sensitivity was identified, resulting in an optical rotation resolution nearly an order of magnitude higher than the original system.
IEEE PHOTONICS JOURNAL
(2021)
Article
Optics
Jing-Hui Huang, Xue-Ying Duan, Xiang-Yun Hu
Summary: Based on the concept of weak-value amplification, a new weak measurement protocol was demonstrated using a modified scheme with the Sagnac interferometer, which amplifies the phase shift of the Sagnac effect to detect small rotation velocities. The innovative optical design increases the optical path area and decreases the size of the interferometer, overcoming limitations imposed by instrument size. The modified Sagnac's interferometer based on weak measurement proves to be both innovative and efficient in probing small rotation velocity signals.
EUROPEAN PHYSICAL JOURNAL D
(2021)
Article
Optics
Shijie Sun, Yuanhua Che, Qidong Yu, Yuhang Xie, Tianhang Lian, Xueqing Sun, Xibin Wang, Daming Zhang
Summary: A broadband mode-independent thermo-optic switch based on the total-internal-reflection effect is proposed and experimentally demonstrated on a polymer waveguide platform. By optimizing the geometric parameters of the switch, a mode-independent TO switching function with a large bandwidth and extinction ratio can be realized for different modes. The designed structure can also be cascaded to form a 1 x N switch network for mode-division multiplexing (MDM) systems, improving network flexibility.
Article
Multidisciplinary Sciences
Yazgan Tuna, Amer Al-Hiyasat, Jonathon Howard
Summary: This paper presents a protocol for combining IRM with a commercial TIRF microscope for simultaneous imaging of MAPs and dynamic microtubules. This setup improves existing TIRF setups by eliminating the need for microtubule labeling and additional optical components, allowing for high-speed observation of MAPs interacting with dynamic microtubules.
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
(2022)
Article
Polymer Science
J. Alejandro Rivera-Moran, Peter R. Lang
Summary: This paper investigates the influence of noise effects, particle size, and sampling time on total internal reflection microscopy (TIRM) measurement results. It finds that detector shot noise and prolonged sampling times may cause erroneous results in steep parts of the interaction potential, while background noise has negligible effects. Noise does not significantly affect dynamic data, but lengthy sampling times and small probe particle radii can cause issues. Additionally, the study observes that dynamic results may differ from standard hydrodynamic predictions due to partial slip.
Article
Chemistry, Physical
David Talaga, Gary S. Cooney, Vicky Ury-Thiery, Yann Fichou, Yuhan Huang, Sophie Lecomte, Sebastien Bonhommeau
Summary: Total internal reflection tip-enhanced Raman spectroscopy (TIR-TERS) is a promising technique for noninvasive nanoscale chemical characterization of biomolecules. The TERS enhancement achieved in this configuration is significantly higher than that in traditional illumination geometry. TIR-TERS is applied to the study of Tau amyloid fibrils, revealing spectral signatures and structural information of the fibrils.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Optics
Titao Xiao, Hua Yang, Qiang Yang, Dingyu Xu, Ruisi Wang, Shizhen Chen, Hailu Luo
Summary: The proposed scheme utilizes computing metasurfaces to achieve fast switching between bright-field images and edge images, introducing different phase retardances by regulating external voltages.
Article
Nanoscience & Nanotechnology
Zheng Lai, Shuai Lin, Youzhi Shi, Maoxin Li, Guangyou Liu, Bingbing Tian, Yu Chen, Xinxing Zhou
Summary: Chiral perovskite nanocrystals have attracted considerable attention in spintronics, quantum optics, and biology. In this study, chiral ligands were coated on the nanocrystals, and accurate detection of weak chirality was achieved through the transverse shift of photonic spin Hall effect. The study also revealed that chirality decreases with the increase of particle size.
Article
Optics
Lijuan Sheng, Xinxing Zhou, Yu Chen, Hong Zhang, Zhiyou Zhang
Summary: This Letter investigates the in-plane and transverse shifts in the photonic spin Hall effect, as well as their relation to the spin-orbit interaction of light. The study presents a reconstructed theoretical model for the non-paraxial case and reveals the influence of anisotropic extrinsic orbital angular momentum.
Article
Physics, Multidisciplinary
Jiahao Hong, Zhihao Chen, Shuai Lin, Yu Chen, Xinxing Zhou
Summary: The flexible enhancement of photonic spin Hall effect is achieved by using selective Brewster angle in an anisotropic metamaterial. This method allows the spin-dependent transverse shift to be enhanced at arbitrary incident angles, and enables information conversion through binary encoding system.
ANNALEN DER PHYSIK
(2023)
Article
Optics
Lijuan Sheng, Xinxing Zhou, Yuhan Zhong, Xinyan Zhang, Yu Chen, Zhiyou Zhang, Hongsheng Chen, Xiao Lin
Summary: The photonic spin Hall effect allows for quantifying the interaction between light and spin-orbit, enabling applications in precise metrology. In this effect, the light beam experiences a spin-dependent transverse shift. It is found that, unlike the reflection/transmission process, the transverse shift for transmitted light is always zero and independent of polarization, regardless of the incident angle. This is due to the complete suppression of conversion between the spin and orbital angular momenta of light during the transmission process. Similar polarization-independent photonic spin Hall effect is observed for reflected light.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Xiaohui Ling, Zan Zhang, Zhiping Dai, Zhiteng Wang, Hailu Luo, Lei Zhou
Summary: The physical origin of the photonic spin-Hall effect (PSHE) at optical interfaces is explored through studying the scatterings of circularly polarized beams obliquely incident on a series of junctions. The PSHE is determined by the interplay between the spin-redirection Berry (SRB) phase and the Pancharatnam-Berry (PB) phase. Shrinking the interfacial region can change the PSHE from SRB-dominated to PB-dominated.
LASER & PHOTONICS REVIEWS
(2023)
Editorial Material
Physics, Multidisciplinary
Shiyao Fu, Hailu Luo, Carmelo Rosales-Guzman
FRONTIERS IN PHYSICS
(2023)
Letter
Optics
Yan Wang, Qiang Yang, Yichang Shou, Hailu Luo
Summary: Mathematically, any function can be expressed as the operation form of another function. In this study, the concept is applied to an optical system for generating structured light. By representing mathematical functions as optical field distributions and using optical analog computations, different structured light fields can be generated from input optical fields. The scheme takes advantage of the Pancharatnam-Berry phase for broadband performance. The work demonstrates a flexible method for generating broadband structured light, with potential applications in high-resolution microscopy and quantum computation.
Editorial Material
Engineering, Electrical & Electronic
Xinxing Zhou, Jacob Khurgin, Shenhe Fu
IEEE PHOTONICS JOURNAL
(2023)
Article
Optics
Kuiming Zeng, Shanshan He, Xianping Wang, Hailu Luo
Summary: A compact optical integration of dynamic phase and geometric phase is proposed to generate arbitrary vector vortex beams on a hybrid-order Poincare sphere. By applying two different technologies, dynamic and geometric phase elements are integrated into a single glass plate to simultaneously modulate the phase and polarization of light. The vector polarization is realized by the metasurface structure, while the vortex phase is generated by the spiral phase plate. Potential applications in future integrated optical devices are anticipated due to its high transmission efficiency and conversion efficiency.
Article
Optics
Qiuying Li, Hua Yang, Yan Wang, Yichang Shou, Shuoqing Liu, Hailu Luo
Summary: This study proposes an optical method for surface topography detection of low-contrast phase objects, which achieves spatial differential operation by constructing reflected light paths. The method is demonstrated to be universal and accurate, and applicable to both opaque and transparent pure phase objects.
Article
Optics
Wenshuai Zhang, Yongsheng Wang, Dingyu Xu, Hailu Luo
Summary: This study investigates the spin-orbit interaction of a vortex beam reflected on twisted few-layer hyperbolic metasurfaces. The spatial Imbert-Fedorov (IF) shift and photonic spin Hall effect (PSHE) shift are found to have symmetrical relationships with the twist angle and are influenced by the topological charge and the polarization state of the incident beam. These findings provide new insights for further investigations of twisted light and twisted metasurfaces.
Article
Engineering, Electrical & Electronic
Shuaijie Yuan, Jin Yang, Yong Wang, Yu Chen, Xinxing Zhou
Summary: In this work, a highly sensitive temperature sensor based on photonic spin Hall effect (PSHE) is proposed. It is found that, by involving the liquid crystal (LC) material, the PSHE exhibits high sensitivity to temperature perturbations near the Brewster and critical angles. The phase transition from liquid crystal state to liquid state leads to a transition of the sensitivity of the temperature sensor and provides an effective method for manipulating the spin-orbit interaction.
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER
(2023)
Article
Optics
Wenshuai Zhang, Yongsheng Wang, Shizhen Chen, Shuangchun Wen, Hailu Luo
Summary: Motivated by the stacked two-dimensional materials with a twist angle, this study investigates the photonic spin Hall effect in twisted few-layer anisotropic two-dimensional atomic crystals. A generalized model for arbitrary layers of anisotropic two-dimensional atomic crystals is developed, and the photonic spin Hall effect of twisted few-layer black phosphorus without interlayer interaction is demonstrated and discussed. The results show that the twist between different layers leads to the in-plane spin Hall shift, which is highly sensitive to the twist angle. The in-plane spin Hall shifts are symmetric about the origin as a function of the twist angle, while the transverse spin Hall shifts are symmetric about the axis. The photonic spin Hall shifts also exhibit periodic changes with the thickness of the interlayer due to the optical Fabry-Perot resonance.
Article
Optics
Yongsheng Wang, Wenshuai Zhang, Shizhen Chen, Shuangchun Wen, Hailu Luo
Summary: In this study, a multiple weak-value model is proposed in quantum weak measurement to improve measurement accuracy by introducing modified preselection states, particularly for broad-spectrum light sources.
