4.5 Article

Gas refractive index sensor with an integrated prism and a microlens array

Related references

Note: Only part of the references are listed.
Article Materials Science, Multidisciplinary

Highly sensitive refractive index sensor based on Bloch surface waves with lithium niobate film

Daohan Ge et al.

Summary: This paper presents a novel BSW sensor with high sensitivity, utilizing LiNbO3 film and SiO2/TiO2 photonic crystal, exciting BSW resonance through Kretschmann prism, and conducting numerical simulation analysis using RCWA. The designed sensor demonstrates high sensitivity, making it suitable for chemical and biological sensing applications.

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING (2022)

Article Engineering, Electrical & Electronic

Design and Sensitivity Improvement of Microstructured-Core Photonic Crystal Fiber Based Sensor for Methane and Hydrogen Fluoride Detection

Gyan Prakash Mishra et al.

Summary: This paper presents a gas detection sensor based on microstructured-core photonic crystal fiber, and analyzes the quantitative dependence of its guiding properties on geometrical parameters at different wavelengths. The sensor shows high sensitivity and minimal confinement loss, making it suitable for detecting gases such as methane and hydrogen fluoride.

IEEE SENSORS JOURNAL (2022)

Article Optics

Proposal and analysis of ultra-high amplitude-sensitive refractive index sensor by thick silicon multi-slot sub-wavelength Bragg grating waveguide

S. Heinsalu et al.

Summary: This paper proposed an ultra-high amplitude-sensitive multi-slot sub-wavelength Bragg grating (MS-SW BG) waveguide sensor on silicon on insulator platform, which supports multi-transverse modes and achieves ultra-high amplitude-sensitive performance by adjusting sensor parameters.

OPTICS COMMUNICATIONS (2022)

Article Engineering, Electrical & Electronic

Nonlinearity Reduction in a Fiber Fabry-Perot Interferometer Interrogated by a Wavelength Scanning Optical Source

Rodolfo Martinez-Manuel et al.

Summary: A novel method is presented to reduce the nonlinearity effect of a wavelength scanning diode laser in a low-reflectivity Fabry-Perot interferometer. The proposed method improves system resolution and achieves a temperature insensitive sensing system. It is demonstrated by measuring the thermo-optic coefficient of liquid samples and presenting long-term performance experimental results.

IEEE SENSORS JOURNAL (2022)

Article Optics

Ultra-sensitive refractive index sensing enabled by a dramatic ellipsometric phase change at the band edge in a one-dimensional photonic crystal

Feng Wu et al.

Summary: In this study, we achieved dramatic ellipsometric phase change at the band edges in an all-dielectric one-dimensional photonic crystal for oblique incidence, and designed an ultra-sensitive refractive index sensor at near-infrared wavelengths. The sensor has a resolution of 9.28x10(-8) RIU and does not require any additional coupling component or structure. It can be used for monitoring temperature, humidity, pressure, and concentration of biological analytes.

OPTICS EXPRESS (2022)

Article Nanoscience & Nanotechnology

A very high-resolution refractive index sensor based on hybrid topology of photonic crystal cavity and plasmonic nested split-ring resonator

Leila Hajshahvaladi et al.

Summary: An optical refractive index sensor based on a hybrid topology of photonic crystal and plasmonic is designed in this paper. The sensor structure consists of nested circular metallic split-ring resonators embedded in a hexagonal cavity of a rod-type photonic crystal. Numerical simulation using the finite-difference time-domain method shows that a hybrid mode is created by the cooperative coupling between surface plasmon polaritons induced by the split-ring resonators and resonant photonic crystal cavity modes. This hybrid mode not only increases the sensitivity of the sensor but also provides a much higher figure of merit compared to purely plasmonic or purely photonic crystal sensors. Simulation results demonstrate high sensitivity and excellent figure of merit when the proposed sensor is exposed to hazardous gases, showing considerable improvement compared to previous works.

PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS (2022)

Article Materials Science, Multidisciplinary

Double-formant surface plasmon resonance for refractive index sensing by anti-resonance fibers with high sensitivity and wide detection range

Jingwei Lv et al.

Summary: This paper designs a double-formant SPR refractive index sensor, which combines anti-resonant fiber and gold filling material to achieve high sensitivity and wide detection range, suitable for biochemical detection and geological exploration.

RESULTS IN PHYSICS (2022)

Article Engineering, Multidisciplinary

Ultrasensitive measurement of gas refractive index based on cascaded Mach-Zehnder interferometers and Vernier effect

Jun Li et al.

Summary: The proposed sensor utilizes fiber Mach-Zehnder interferometers and Vernier effect to achieve ultrahigh sensitivity gas refractive index sensing, with potential applications for modern gas concentration monitoring in a large dynamic range.

MEASUREMENT SCIENCE AND TECHNOLOGY (2021)

Review Engineering, Electrical & Electronic

MEMS Gas Sensors: A Review

Muhammad Izzudin Ahmad Asri et al.

Summary: MEMS gas sensors are capable of detecting gas presence and concentration in the atmosphere and have been widely used in various fields, particularly in biomedical applications. This paper provides a comprehensive review of state-of-the-art gas sensors developed using MEMS technology, focusing on the use of electrochemical, optical, and acoustic gas sensors in biomedical applications.

IEEE SENSORS JOURNAL (2021)

Article Engineering, Electrical & Electronic

All-Fiber Fabry-Perot Interferometer Gas Refractive Index Sensor Based on Hole-Assisted One-Core Fiber and Vernier Effect

Rui Pan et al.

Summary: The novel high sensitivity all-fiber Fabry-Perot interferometer (FPI) gas refractive index (RI) sensor based on hole-assisted one-core fiber (HAOCF) and Vernier effect demonstrates significant improvement in sensitivity by utilizing a combination of air-cavity FPI and silica-cavity FPI. The sensor is capable of monitoring RI changes of air with different pressures and offers potential applications in gas composition detection, medical diagnostics, and environmental monitoring.

IEEE SENSORS JOURNAL (2021)

Article Materials Science, Multidisciplinary

Performance analysis of graphene-based surface plasmon resonance biosensor for blood glucose and gas detection

Abinash Panda et al.

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING (2020)

Proceedings Paper Materials Science, Multidisciplinary

Design of chemical sensor based on dual core photonic crystal fiber

Sneha Sharma et al.

MATERIALS TODAY-PROCEEDINGS (2020)

Review Instruments & Instrumentation

Refractive-index gas thermometry

Patrick M. C. Rourke et al.

METROLOGIA (2019)

Review Chemistry, Analytical

Advanced Micro- and Nano-Gas Sensor Technology: A Review

Haleh Nazemi et al.

SENSORS (2019)

Article Physics, Applied

Surface Exciton Polaritons: A Promising Mechanism for Refractive-Index Sensing

Yi Xu et al.

PHYSICAL REVIEW APPLIED (2019)

Article Physics, Applied

Determination of the refractive index of liquids at cryogenic temperature

R. Faoro et al.

APPLIED PHYSICS LETTERS (2018)

Article Materials Science, Multidisciplinary

Photonic crystal for gas sensing

Hua Xu et al.

JOURNAL OF MATERIALS CHEMISTRY C (2013)

Article Engineering, Electrical & Electronic

Monitoring changes in the refractive index of gases by means of a fiber optic Fabry-Perot interferometer sensor

GZ Xiao et al.

SENSORS AND ACTUATORS A-PHYSICAL (2005)

Article Optics

Theoretical description of Shack-Hartmann wave-front sensor

J Primot

OPTICS COMMUNICATIONS (2003)