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Broadband continuous supersymmetric transformation: a new paradigm for transformation optics
eLight - Tập 2 - Trang 1-10 - 2022
Transformation optics has formulated a versatile framework to mold the flow of light and tailor its spatial characteristics at will. Despite its huge success in bringing scientific fiction (such as invisibility cloaking) into reality, the coordinate transformation often yields extreme material parameters unfeasible even with metamaterials. Here, we demonstrate a new transformation paradigm based u......
Early cancer detection by serum biomolecular fingerprinting spectroscopy with machine learning
eLight - Tập 3 - Trang 1-11 - 2023
Label-free surface-enhanced Raman scattering (SERS) technique with ultra-sensitivity becomes more and more desirable in biomedical analysis, which is yet hindered by inefficient follow-up data analysis. Here we report an integrative method based on SERS and Artificial Intelligence for Cancer Screening (SERS-AICS) for liquid biopsy such as serum via silver nanowires, combining molecular vibrational......
Planar liquid crystal polarization optics for augmented reality and virtual reality: from fundamentals to applicationsAbstract Planar and ultrathin liquid crystal (LC) polarization optical elements have found promising applications in augmented reality (AR), virtual reality (VR), and photonic devices. In this paper, we give a comprehensive review on the operation principles, device fabrication, and performance of these optical elements. Optical simulations methods for optimizing th... ...
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Image encryption using spatial nonlinear optics
eLight - Tập 2 - Trang 1-10 - 2022
Optical technologies have been widely used in information security owing to its parallel and high-speed processing capability. However, the most critical problem with current optical encryption techniques is that the cyphertext is linearly related with the plaintext, leading to the possibility that one can crack the system by solving a set of linear equations with only two cyphertext from the same......
Metal Halide Perovskite for next-generation optoelectronics: progresses and prospects
eLight - Tập 3 - Trang 1-16 - 2023
Metal halide perovskites (MHPs), emerging as innovative and promising semiconductor materials with prominent optoelectronic properties, has been pioneering a new era of light management (ranging from emission, absorption, modulation, to transmission) for next-generation optoelectronic technology. Notably, the exploration of fundamental characteristics of MHPs and their devices is the main research......
Directly wireless communication of human minds via non-invasive brain-computer-metasurface platform
eLight - - 2022
Brain-computer interfaces (BCIs), invasive or non-invasive, have projected unparalleled vision and promise for assisting patients in need to better their interaction with the surroundings. Inspired by the BCI-based rehabilitation technologies for nerve-system impairments and amputation, we propose an electromagnetic brain-computer-metasurface (EBCM) paradigm, regulated by human’s cognition by bra......
ISO-FLUCS: symmetrization of optofluidic manipulations in quasi-isothermal micro-environmentsAbstract Recently, it has been demonstrated that thermoviscous flows can be used for a range of fine micromanipulations, such as moving the cytoplasm of cells and developing embryos, intracellular rheology, and femtonewton-range force measurements. These flows, also known as focused-light-induced cytoplasmic streaming (FLUCS), are induced by mid-infrared laser scann... ...
eLight - Tập 3 Số 1
Upconversion nanoparticles for super-resolution quantification of single small extracellular vesicles
eLight - Tập 2 - Trang 1-12 - 2022
Although small EVs (sEVs) have been used widely as biomarkers in disease diagnosis, their heterogeneity at single EV level has rarely been revealed. This is because high-resolution characterization of sEV presents a major challenge, as their sizes are below the optical diffraction limit. Here, we report that upconversion nanoparticles (UCNPs) can be used for super-resolution profiling the molecula......
Highly sensitive force measurements in an optically generated, harmonic hydrodynamic trap
eLight - Tập 1 - Trang 1-9 - 2021
The use of optical tweezers to measure forces acting upon microscopic particles has revolutionised fields from material science to cell biology. However, despite optical control capabilities, this technology is highly constrained by the material properties of the probe, and its use may be limited due to concerns about the effect on biological processes. Here we present a novel, optically controlle......
Hybrid optical parametrically-oscillating emitter at 1930 nm for volumetric photoacoustic imaging of water content
eLight - Tập 2 - Trang 1-7 - 2022
Water plays a vital role in biological metabolism and it would be essential to trace the water content non-invasively, such as leveraging the vibrational absorption peak of the O–H bond. However, due to the lack of an efficient laser source, it was challenging to image the water content in the deep tissue with micron-level spatial resolution. To address this problem, we develop a high-power hybrid......
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