Results 21 to 30 of about 345 (137)
Sensors, 2010 This work addresses the development and assessment of a fiber optical viscometer using a simple and low-cost long-period fiber grating (LPFG) level sensor and a capillary tube mechanism.
Jian-Neng Wang, Jaw-Luen Tang
doaj +3 more sources
Microfiber evanescent-field photothermal gas detection using acoustic-induced mode-dependent frequency shift. [PDF]
Nanophotonics, 2023 Abstract In this study, we experimentally showcase the microfiber evanescent‐field photothermal gas detection by exploiting all‐fiber MHz‐level frequency shift scheme. Based on the acousto‐optic interaction effect, the low‐frequency shifts of 0.9 MHz and 1.83 MHz can be obtained through the cyclic conversion between the transverse core modes LP01 and ...
Zhu Y +7 more
europepmc +2 more sources
Mode manipulation in a ring-core fiber for OAM monitoring and conversion. [PDF]
Nanophotonics, 2022 Abstract The monitoring and conversion of photonic orbital angular momentum (OAM) play fundamental and important roles for both classic and quantum technologies, especially in low‐loss transmission media such as ring‐core fibers (RCFs), which make many OAM applications practical or vastly more flexible.
Wu G +7 more
europepmc +2 more sources
Chemical Sensors Based on Graphene and 2D Graphene Analogs
Advanced Sensor Research, Volume 2, Issue 9, September, 2023., 2023 2D materials have been arisen to substitute the existing materials such as organic, polymeric, metal oxide in chemical sensor usage. The history and recent advances of various 2D material‐based chemical sensors with a description of perspectives and future challenges are introduced.
Chung Won Lee +3 more
wiley +1 more source
Nanophotonics, Volume 12, Issue 6, Page 1147-1157, March 2023., 2023 Abstract Metasurface provides a novel way to modulate light energy at specific wavelengths, namely resonances, where there is a sharp drop in the transmission spectrum. Based on the relationship between the resonant position and the environmental condition, various refractive index detection methods have been developed.
Wenjie Chen +3 more
wiley +1 more source
Advancement in COVID‐19 detection using nanomaterial‐based biosensors
Exploration, Volume 3, Issue 1, February 2023., 2023 Interdisciplinary advances in nanomaterials and biotechnology, such as nanomaterials‐based biosensors, have opened new avenues for rapid and ultrasensitive detection of pathogens in the field of healthcare. Many updated nanomaterials‐based biosensors, namely electrochemical, field‐effect transistor, plasmonic, and colorimetric biosensors, employ ...
Phuoc Loc Truong +3 more
wiley +1 more source
Plasmonic metafiber for all‐fiber Q‐switched cylindrical vector lasers
Nanophotonics, Volume 12, Issue 4, Page 725-735, February 2023., 2023 Abstract Metafibers, by integrating metasurface at the optical fiber tip, are emerging as the significant optical coupling platforms for nanophotonics and fiber‐optic communities. Here, we propose a plasmonic metafiber for converting the fundamental mode to first‐order mode in fiber, and as proof of device performance, demonstrate an all‐fiber Q ...
He Hua +6 more
wiley +1 more source
Emerging nanophotonic biosensor technologies for virus detection
Nanophotonics, Volume 11, Issue 22, Page 5041-5059, December 2022., 2022 Abstract Highly infectious viral diseases are a serious threat to mankind as they can spread rapidly among the community, possibly even leading to the loss of many lives. Early diagnosis of a viral disease not only increases the chance of quick recovery, but also helps prevent the spread of infections.
Shivananju Bannur Nanjunda +10 more
wiley +1 more source
Optical Fiber Sensors: Working Principle, Applications, and Limitations
Advanced Photonics Research, Volume 3, Issue 11, November 2022., 2022 Fiber‐optic sensors based on Bragg gratings, long‐period gratings, interferometry, surface plasmon resonance (SPR), fluorescence, and light diffusion are analyzed. The foundations of chemical and biosensing are addressed and the recent progress in numerous sensing fields, including environmental, industrial, and biomedical applications, are discussed ...
Mohamed Elsherif +10 more
wiley +1 more source
Curvature prediction of long‐period fibre grating based on random forest regression
IET Optoelectronics, Volume 16, Issue 5, Page 225-233, October 2022., 2022 Abstract This study proposes a long‐period fibre grating (LPFG) curvature estimation method based on random forest regression (RFR) to address the shortcomings of the existing curvature evaluation method, namely, polynomial fitting; these shortcomings cause difficulty in achieving adequate model regularity and application universality.
Xingliu Hu +3 more
wiley +1 more source