A sensitivity-enhanced temperature sensor based on a Mach-Zehnder interferometer (MZI) coated by polydimethylsiloxane (PDMS) film is proposed and investigated. The MZI with a compact size of 2.28 mm is fabricated by embedding a tapered single-mode fiber (SMF) between two multimode fibers (MMFs). Since PDMS has a higher thermo-optical coefficient than silica, the proposed sensor has better temperature sensing performance than the case without PDMS coating, which is demonstrated by simulation and experiment. The experimental results show that the sensitivity of the proposed sensor is as high as -1.06 nm/°C in the range from -5 °C to 45 °C.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11859569 | PMC |
| http://dx.doi.org/10.3390/s25041191 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Sensitivity-Enhanced Temperature Sensor Based on PDMS-Coated Mach-Zehnder Interferometer.
Sensors (Basel)
February 2025
College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China.
A sensitivity-enhanced temperature sensor based on a Mach-Zehnder interferometer (MZI) coated by polydimethylsiloxane (PDMS) film is proposed and investigated. The MZI with a compact size of 2.28 mm is fabricated by embedding a tapered single-mode fiber (SMF) between two multimode fibers (MMFs).
View Article and Find Full Text PDFThermosensitive bovine lactoferricin-loaded chitosan hydrogels for sustained antibacterial release: An alternative to antibiotics for treating bovine mastitis.
Int J Biol Macromol
February 2025
College of Veterinary Medicine, Beijing University of Agriculture, Beijing 102206, PR China. Electronic address:
The overuse of antibiotics in livestock production poses a significant threat to public health, primarily by accelerating the emergence of antibiotic-resistant bacteria-a critical global issue. Therefore, the development of effective alternatives to antibiotics is urgently required to address this problem. In this study, BLfcin-NPs@CS/β-GP thermosensitive hydrogels were developed by incorporating bovine lactoferricin-loaded chitosan nanoparticles into a chitosan/β-GP hydrogel matrix.
View Article and Find Full Text PDFThis paper presents a highly sensitive, temperature-insensitive optical carrier microwave interferometry (OCMI) system using a cascaded three fiber Bragg grating (FBG) structure to generate an enhanced Vernier effect for sensing applications. The enhanced Vernier effect is created by superimposing the interferograms of two separate interferometers formed by pairing the sensing FBG with each reference FBG. Experimental and theoretical results show that in strain sensing, the sensitivity based on enhanced Vernier effect is -4.
View Article and Find Full Text PDFCarbon Dots-Modified Hollow Mesoporous Photonic Crystal Materials for Sensitivity- and Selectivity-Enhanced Sensing of Chloroform Vapor.
Nanomicro Lett
December 2024
Department of Chemistry and Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Chemistry for Energy Materials (2011-iChEM), College of Chemistry and Materials, Fudan University, Shanghai, People's Republic of China.
Chloroform and other volatile organic pollutants have garnered widespread attention from the public and researchers, because of their potential harm to the respiratory system, nervous system, skin, and eyes. However, research on chloroform vapor sensing is still in its early stages, primarily due to the lack of specific recognition motif. Here we report a mesoporous photonic crystal sensor incorporating carbon dots-based nanoreceptor (HMSS@CDs-PCs) for enhanced chloroform sensing.
View Article and Find Full Text PDFStructural characterization of surface immobilized platinum hydrides by sensitivity-enhanced Pt solid state NMR spectroscopy and DFT calculations.
Chem Sci
January 2025
Iowa State University, Department of Chemistry Ames IA 50011 USA
Supported single-site platinum hydride compounds are promising heterogeneous catalysts for organic transformations. Few methods exist to describe the structures of single-site Pt catalysts with atomic resolution because of their disordered structures and low Pt loadings. Here, we study the compounds formed when bis(tri--butylphosphino)platinum, Pt(P Bu), is supported on dehydroxylated SiO or SiO-AlO.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!