Article
Multidisciplinary Sciences
L. Clermont, W. Uhring, M. Georges
Summary: Understanding stray light is crucial in optical instrument development, with traditional methods limited in providing sufficient information. The new ultrafast time-of-flight stray light characterization method offers identification of stray light origins and aids in system improvement.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Xiaohua Feng, Liang Gao
Summary: LIFT is a novel transient imaging strategy that provides a temporal sequence of over 1000 and efficient light field acquisition for four-dimensional imaging. It enables three-dimensional imaging of light in flight phenomena with a resolution of less than 10 picoseconds, and non-line-of-sight imaging at a video rate of 30 Hz.
NATURE COMMUNICATIONS
(2021)
Article
Environmental Sciences
Joshua P. Harringmeyer, Karl Kaiser, David R. Thompson, Michelle M. Gierach, Curtis L. Cash, Cedric G. Fichot
Summary: UV-visible imaging spectroscopy is expected to enhance remote sensing capabilities of coastal waters, particularly in monitoring CDOM, yet further research is needed to demonstrate its effectiveness.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Review
Construction & Building Technology
Damilola Adeniyi Onatayo, Ravi Shankar Srinivasan, Bipin Shah
Summary: The need for reliable and affordable methods to detect fenestration deterioration and assess UV radiation transmission in sustainable and energy-efficient buildings is growing. This study explores UV bandpass-filtered imaging, advanced image processing techniques, and pixel transformation equations as potential solutions. By integrating digital imaging devices with segmentation techniques and mathematical transformations, this research aims to provide an innovative and potentially democratized approach to UV detection in fenestration glazing. However, further research is needed to optimize and tailor the detection methods for specific applications, considering the complexities of UV radiation, digital imaging, and fenestration glazing.
Article
Imaging Science & Photographic Technology
Jonathan Crowther
Summary: UV fluorescence imaging is a valuable tool, but proper equipment and method selection is crucial. Different filters exhibit varying degrees of fluorescence and UV blocking capabilities.
JOURNAL OF IMAGING
(2022)
Article
Chemistry, Multidisciplinary
Prithu Roy, Jean-Benoit Claude, Sunny Tiwari, Aleksandr Barulin, Jerome Wenger
Summary: The study demonstrates the use of ultraviolet autofluorescence of tryptophan amino acids to study single proteins without fluorescence labeling. By combining nanophotonic plasmonic antennas, antioxidants, and background reduction techniques, the sensitivity of label-free ultraviolet fluorescence correlation spectroscopy (UV-FCS) is improved to the level of single tryptophan residues. This breakthrough enables the application of UV-FCS to a wide range of label-free proteins.
Review
Public, Environmental & Occupational Health
Michele Marro, Laurent Moccozet, David Vernez
Summary: This study conducted a review of the current literature on ocular exposure to ultraviolet light and proposed three methods to address the limitations of current tools: the use of anthropomorphic manikins, measurements through wearable sensors, and numerical simulations.
FRONTIERS IN PUBLIC HEALTH
(2022)
Article
Chemistry, Physical
Kailei Lu, Yucheng Ye, Wenhan Han, Cong Zhang, Lexing Liang, Haifeng Yuan, Yanli Shi, Jianqi Qi, Tiecheng Lu
Summary: In this study, a transparent ceramic material with light-shielding properties was successfully prepared by controlling the doping concentration and air-annealing temperature. It was found that by adjusting the content of defect clusters, the optical cutoff waveband of the ceramic material can be extended from UV to green light, providing a new approach for the development of lanthanide-doped transparent ceramics for light-shielding windows.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Optics
N. R. Subedi, S. Yaraghi, P. S. Jung, G. Kukal, A. G. McDonald, D. N. Christodoulides, A. E. Vasdekis
Summary: Research shows that digitally scanned Airy beams can improve the throughput rates in Raman imaging by an order of magnitude compared to traditional diffraction-limited beams, achieving high contrast and 1 micron axial resolution for three-dimensional imaging of microparticles. This method also achieves orders of magnitude lower irradiation density than coherent Raman imaging schemes, with faster speed and lower phototoxicity.
Article
Chemistry, Physical
Oleg Varnavski, Carolyn Gunthardt, Aasia Rehman, Gary D. Luker, Theodore Goodson
Summary: Correct biological interpretation from cell imaging can only be achieved when there is minimal disturbance from the imaging system. In this study, we demonstrated the creation of microscopic images of breast cancer cells using fluorescence selectively excited at a much lower intensity compared to classical two-photon microscopy. The low intensity used in entangled two-photon microscopy is critical in minimizing photobleaching and cell damage, opening new possibilities for cell investigations.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Changjie Xia, Ming Ren, Qianyu Li, Yadong Xing, Ming Dong, Tao Zhang, Jin Miao
Summary: Based on synchronous fluorescence spectra and excitation emission matrix of mineral and vegetable oils, a UV-induced hyperspectral imaging measurement system is developed to determine the fluorescence-reflectance spectra of oil traces. The influence factors of fluorescence-reflectance intensity are discussed, and principal component analysis is applied for anomaly detection and visualization of oil leakage traces. The validation test results prove the general applicability of this method for different surface materials in indoor and outdoor conditions, improving the detection rate of oil leakage defects and promoting the intelligent level of power equipment operation and maintenance.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Chemistry, Analytical
Bo Song, Huinan Yan, Jiao Jiang, Jin Yu, Shengjun Huang, Jingli Yuan
Summary: In this study, an activatable nanoprobe for bimodal TGLI and MRI has been developed, which shows rapid, sensitive, and selective turn-on responses towards GSH and H2O2. The nanoprobe can be used for the identification and tracing of cancer cells in vitro and in vivo.
Article
Optics
Chunxu Jiang, Yong Tan, Guannan Qu, Zhong Lv, Naiwei Gu, Weijian Lu, Jianwei Zhou, Zhenwei LI, Rong Xu, Kailin Wang, Jing Shi, Mingsi Xin, Hongxing Cai
Summary: In this study, a spectral video imaging system was developed to detect and reconstruct the spectral images of high orbit space objects. By considering the bi-directional reflection distribution function (BRDF), Rayleigh scattering theory, and the memory effect, a mathematical model and a neural network were employed to invert the speckle patterns and obtain the spectral information of the targets. The results showed that the system can effectively identify the target materials and provide important support for remote imaging and identification of distant and ultra-diffractive targets.
Article
Horticulture
Dominik Vodnik, Ziga Vogrin, Helena Sircelj, Mariana Cecilia Grohar, Aljaz Medic, Klaudija Carovic-Stanko, Toni Safner, Boris Lazarevic
Summary: The effects of UV-A radiation on the growth and physiological and biochemical traits of green leaf basil were investigated. UV-A did not have any negative effects on plant growth and photosynthetic functions, even at high doses. It also enhanced thylakoid processes and increased the pool of xanthophyll cycle pigments, contributing to the plant's response to the light environment.
SCIENTIA HORTICULTURAE
(2023)
Article
Food Science & Technology
Maozhen Qu, Shijie Tian, Hengjie Yu, Da Liu, Chao Zhang, Yingchao He, Fang Cheng
Summary: Deoxynivalenol and zearalenone contamination in maize poses a threat to food safety. This study developed a cost-effective and non-destructive method for classifying contaminated maize. Texture and color features were extracted using visible light imaging and polarized light imaging, and six classification models were established. The results showed that the optimal detection surface was the endosperm side, and the SVM model achieved a classification accuracy of 88.1%. Further experiments verified the effectiveness of this method in identifying different contamination levels and reducing testing costs.
