Results 31 to 40 of about 233,329 (271)
Hollow-core fiber-based speckle displacement sensor [PDF]
, 2022 The research enterprise towards achieving high-performance hollow-core photonic crystal fibers has led to impressive advancements in the latest years. Indeed, using this family of fibers becomes nowadays an overarching strategy for building a multitude of optical systems ranging from beam delivery devices to optical sources and sensors.
arxiv +1 more source
A Fiber-coupled Scanning Magnetometer with Nitrogen-Vacancy Spins in a Diamond Nanobeam [PDF]
, 2023 Magnetic imaging with nitrogen-vacancy (NV) spins in diamond is becoming an established tool for studying nanoscale physics in condensed matter systems. However, the optical access required for NV spin readout remains an important hurdle for operation in challenging environments such as millikelvin cryostats or biological systems.
arxiv +1 more source
Towards label-free distributed fiber hydrogen sensor with stimulated Raman spectroscopy [PDF]
, 2019 Hydrogen detection is of great importance in chemical and energy industries. Optical fiber hydrogen sensors show flexibility and compactness and have the potential for distributed analysis. However, traditional fiber sensors encounter a challenge for light to interact with hydrogen directly since hydrogen only display weak quadrupole absorption, and ...
arxiv +1 more source
Distributed opto-mechanical analysis of liquids outside standard fibers coated with polyimide [PDF]
Applied Physics Letters - Photonics 4, 016105 (2019), 2019 The analysis of surrounding media has been a long-standing challenge of optical fiber sensors. Measurements are difficult due to the confinement of light to the inner core of standard fibers. Over the last two years, new sensor concepts have enabled the analysis of liquids outside the cladding boundary, where light does not reach.
arxiv +1 more source
Smart Adhesive Joint with High-Definition Fiber-Optic Sensing for Automotive Applications
Sensors, 2020 Structural health monitoring of fiber-reinforced composite-based joints for automotive applications during their manufacturing and on-demand assessment for its durability in working environments is critically needed.
Stephen Young +8 more
doaj +1 more source
Fluorescent diamond microparticles doped glass fiber for magnetic field sensing [PDF]
APL Materials 8, 081102 (2020), 2020 Diamond containing the negatively charged nitrogen-vacancy (NV) center is emerging as a significant new system for magnetometry. However, most NV sensors require microscopes to collect the fluorescence signals and are therefore limited to laboratory settings.
arxiv +1 more source
Sensors, 2013 Surface plasmon resonance (SPR) sensor is widely used for its high precision and real-time analysis. Fiber-optic SPR sensor is easy for miniaturization, so it is commonly used in the development of portable detection equipment.
Xiaolin Zheng +5 more
doaj +1 more source
Real-time measurement with a fiber optical surface plasmon resonance sensor for biochemical interaction analysis [PDF]
Proc. SPIE 8914, International Symposium on Photoelectronic
Detection and Imaging 2013: Fiber Optic Sensors and Optical Coherence
Tomography, 891406 (29 August 2013), 2019 In this paper we report a fiber optical sensor system based on surface plasmon resonance (SPR) with real-time response for biochemical interaction analysis. The fiber sensor is constructed from a multi-mode fiber with plastic cladding. To facilitate the measurement, a software program is developed which integrates the data acquisition and processing ...
arxiv +1 more source
Understanding and measuring mechanical signals in the tumor stroma
FEBS Open Bio, EarlyView.This review discusses cancer‐associated fibroblast subtypes and their functions, particularly in relation to extracellular matrix production, as well as the development of 3D models to study tumor stroma mechanics in vitro. Several quantitative techniques to measure tissue mechanical properties are also described, to emphasize the diagnostic and ...
Fàtima de la Jara Ortiz +3 more
wiley +1 more source
npj Materials DegradationTo monitor in situ the temperature, pH, and micro-strain change information of sandstone artifacts in the process of oxalic acid corrosion, the temperature, pH, and micro-strain fiber Bragg grating (FBG) sensors are developed.
Changyuan Xu +13 more
doaj +1 more source