Bidirectional Littrow double grating interferometry for quadruple optical interpolation

Optics & Laser Technology, Journal Year: 2024, Volume and Issue: 175, P. 110751 - 110751

Published: Feb. 24, 2024

Language: Английский

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WaveFlex biosensor based on S-tapered and waist-expanded technique for detection of glycosylated hemoglobin

Biomedical Optics Express, Journal Year: 2023, Volume and Issue: 14(11), P. 6100 - 6100

Published: Oct. 25, 2023

Glycosylated hemoglobin (HbA1c) is considered a new standard for the detection of diabetes mellitus because it more accurate than regular blood sugar tests and there no need to take on an empty stomach or at specific time. In this work, we have developed novel optical fiber biosensor, referred as "WaveFlex biosensor," which operates principles localized surface plasmon resonance (LSPR) plasmonic wave. The sensor fabricated using innovative S-tapered waist-expanded technique, enabling effectively detect HbA1c. Compared HbA1c sensors currently in use, possess characteristics high sensitivity, low cost, strong anti-interference ability. gold nanoparticles (AuNPs), cerium oxide (CeO2) nanorods (NRs), tungsten disulfide (WS2) nanosheets (NSs) are functionalized improve effectiveness probe surface. AuNPs utilized generate LSPR by excitation evanescent waves amplify sensing signal. CeO2-NRs can metal-carrier interaction with AuNPs, enhancing cascade AuNPs. WS2-NSs layered fold structure large area. Therefore, combination conducive binding antibodies addition sites. make capable selection. applied test solution over concentrations 0-1000 µg/mL, sensitivity limits 1.195×10-5 a.u./(µg/mL) 1.66 µg/mL obtained, respectively. also evaluated assays reproducibility, reusability, selectivity, pH. According findings, method detecting glucose based biosensor proposed.

Language: Английский

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Static and ultrasonic structural health monitoring of full-size aerospace multi-function capsule using FBG strain arrays and PSFBG acoustic emission sensors

Optical Fiber Technology, Journal Year: 2023, Volume and Issue: 78, P. 103316 - 103316

Published: March 31, 2023

Language: Английский

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Advances in Tapered Optical Fiber Sensor Structures: From Conventional to Novel and Emerging

Biosensors, Journal Year: 2023, Volume and Issue: 13(6), P. 644 - 644

Published: June 12, 2023

Optical fiber sensors based on tapered optical (TOF) structure have attracted a considerable amount of attention from researchers due to the advantages simple fabrication, high stability, and diverse structures, great potential for applications in many fields such as physics, chemistry, biology. Compared with conventional fibers, TOF their unique structural characteristics significantly improves sensitivity response speed fiber-optic broadens application range. This review presents an overview latest research status sensors. Then, working principle sensors, fabrication schemes novel structures recent years, growing emerging areas are described. Finally, development trends challenges prospected. The objective this is convey perspectives strategies performance optimization design sensing technologies.

Language: Английский

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Highly sensitive quantification of Amlodipine in real samples using graphene oxide-chitosan surface plasmon resonance sensor

Sensors and Actuators A Physical, Journal Year: 2024, Volume and Issue: 368, P. 115152 - 115152

Published: Feb. 9, 2024

Language: Английский

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Sensitive surface plasmon resonance biosensor by optimized carboxylate functionalized carbon nanotubes/chitosan for amlodipine detecting

Talanta, Journal Year: 2024, Volume and Issue: 276, P. 126249 - 126249

Published: May 11, 2024

Language: Английский

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Corrosion monitoring and assessment of steel under impact loads using discrete and distributed fiber optic sensors

Optics & Laser Technology, Journal Year: 2024, Volume and Issue: 174, P. 110553 - 110553

Published: Jan. 14, 2024

Language: Английский

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Self-powered optical fiber biosensor integrated with enzymes for non-invasive glucose sensing

Biosensors and Bioelectronics, Journal Year: 2024, Volume and Issue: 253, P. 116191 - 116191

Published: March 5, 2024

Language: Английский

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A Random Angle Error Interference Eliminating Method for Grating Interferometry Measurement Based on Symmetry Littrow Structure

Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 28, 2025

Abstract All linear motion will have random angle errors, which lead to displacement detection result deviating from the true value. To solve this common problem in field of optical precision measurement, study proposes a symmetry Littrow grating interferometry measurement method (SLGIM). SLGIM uses high‐precision planar diffraction gratings and place them on both sides central main system build two complementary arms with equal paths. There is mode suppression relationship between arms, so can eliminate error interference improve detection. The experiment results show that when same applied, compared traditional system, mean value decreases 25.8%, standard deviation 37.5%, range 33.7%. after using structure proposed achieves nanometer‐level precision.

Language: Английский

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I-MEREC-T: Improved MEREC-TOPSIS scheme for optimal network selection in 5G heterogeneous network for IoT

Internet of Things, Journal Year: 2023, Volume and Issue: 22, P. 100748 - 100748

Published: March 11, 2023

Language: Английский

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