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Showing 1-25 of 3,240 resultsfor "Index Terms":Resonance Wavelength Shift
"Index Terms":Resonance Wavelength Shift
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Wavelength shifting of Guide-mode resonance filter for sensor networks
2010 International Conference on Advanced Intelligence and Awarenss Internet (AIAI 2010)
Year: 2010 | Conference Paper |
In this paper, the wavelength shifting of Guided-mode resonance filter for sensor networks is investigated. It is demonstrated that the resonant wavelength will shift to longer wavelength as any one of parameters of guided-mode resonance filter increasing. And the period, the thickness of the grating change is liner related to the wavelength shifting. The characteristic of the wavelength drifting ...Show More
Research on Surface Plasmon Resonance Sensor Based on Wavelength Modulation by Using Theoretical Simulation Resonance Sensor Based on Wavelength Modulation by Using Theoretical Simulation
2011 Third International Conference on Measuring Technology and Mechatronics Automation
Year: 2011 | Conference Paper |
Cited by: Papers (2)
In this paper, we present a Kretschmann prism coupling Surface Plasmon Resonance (SPR) sensor based on wavelength and angle combined modulation. In order to research the sensing properties of the sensor, we use a 50nm broadband light source with center wavelength 840nm. Eight different incident angles are used to simulate the reflectance fitted curves for different refractive index ranges of liqui...Show More
Nanophotonics Sensor Based on Microcantilever for Chemical Analysis
A Si-based cantilever sensor with photonic crystal (PC) resonator as readout for chemical sensing and analysis has been developed. The resonant wavelength shift of PC resonator is resulted from PC deformation induced by cantilever bending, in which this optical readout scheme facilitates cantilever deflection measurements in liquid. Through numerical simulation, we demonstrate that the detection c...Show More
A dual-parameter optical fiber sensor based on SPR and LMR for measuring liquid refractive index and temperature
Bin Li;Zongpan Li;Fan Zhang;Bing Lu;Pengxing Guo;Lei Guo;Weigang Hou
IEEE Sensors Journal
Year: 2025 | Early Access Article |
A compact dual-parameter optical fiber sensor combining Surface Plasmon Resonance (SPR) and Lossy Mode Resonance (LMR) technologies was proposed for the simultaneous measurement of liquid refractive index (RI) and temperature. The sensor uses an Au film deposited on one side of a D-shaped quartz no-core optical fiber to excite SPR for RI measurement, and a TiO2 film deposited on the other side whi...Show More
Ultrahigh Efficiency Four-Wave Mixing Wavelength Conversion in Packaged Silica Microrod Resonator
Daquan Yang;Yuanyuan Guo;Wen Chen;Yanran Wu;Kunpeng Zhai;Xin Wang;Jiabin Cui;Huashun Wen;Chuan Wang
Journal of Lightwave Technology
Cited by: Papers (4)
Whispering-gallery-mode (WGM) resonator with high-quality factor (Q) is a key platform for a wide range of fields including nonlinear optics, biosensing and quantum photonics. In this work, a packaged silica microrod resonator (PSMR) with ultrahigh-Q of $\bf 9.0\times 10^{8}$ is experimentally demonstrated. Ultrahigh four-wave mixing conversion efficiency of −8.6 dB at a pump power of 27 mW is ach...Show More
Dispersion effects on long-period fiber gratings
Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference on Communications,
Year: 1999 | Conference Paper |
The UV-induced resonant wavelength shift of a LPG is observed to depend heavily on the mode order. The mode dependency of a LPG and a cascaded LPG pair is analyzed by the differential first order dispersion of the fiber.Show More
Identification of Gases by Porous Optical Sensors Using Reflectivity Difference and Wavelength Shift
Ugur Cem Hasar;Ibrahim Yucel Ozbek;Bulent Cavusoglu;Tevhit Karacali;Hasan Efeoglu;Mehmet Ertugrul;Joaquim J. Barroso
IEEE Photonics Technology Letters
Cited by: Papers (4)
We propose a novel method for identification of various gases using combined measurements of wavelength shift (Δλ0) and reflectivity difference (ΔR). The method relies on plotting the measurement data on the ΔR-Δλ0 space and exploits in the identification process the effect of significant loss behavior of bulk silicon near or within the visible range (for lossless gas vapors). It has been validate...Show More
High-Sensitivity All-Dielectric Fano Resonance Biosensor with Wavelength-Division Multiplexing
Qiming Li;Quanlin He;Hongyan Yang;Wenlong Zhi;Minjie Zhang;Jianqing Li
2024 IEEE 12th International Conference on Information, Communication and Networks (ICICN)
Year: 2024 | Conference Paper |
We designed a multifunctional all-dielectric high-sensitivity Fano resonance biosensor. The sensor features an asymmetric structure, comprising an elliptical ring and a rectangular frame, symmetrically aligned along the x-axis. When incident light is perpendicularly directed onto the device, triple Fano resonances are observed at 1547.94 nm, 1974.11 nm, and 2080.94 nm, with calculated Q-factors of...Show More
Resonant Wavelength Shift Detection System Based on a Gradient Grating Period Guided-Mode Resonance
A resonant wavelength detection system based on a gradient grating period guided-mode resonance (GGP-GMR) filter and a linear charge-coupled device is demonstrated. The GGP-GMR used in this work consists of a subwavelength grating structure with a grating period that varies from 250 to 550 nm in increments of 2 nm. We successfully demonstrate that by using this system, we can monitor the shift in ...Show More
Theoretical and experimental investigation of ultrahigh sensitivity of wavelength-interrogated infrared surface plasmon resonance sensors
2011 16th International Solid-State Sensors, Actuators and Microsystems Conference
Year: 2011 | Conference Paper |
Cited by: Papers (1)
An infrared surface plasmon resonance (SPR) sensor with wavelength interrogation was prepared and its refractive-index (RI) sensitivity was theoretically and experimentally investigated. The numerical calculations indicate that at a specific incident angle the sensor has two surface plasmons in the spectral range 700 nm to 2400 nm and that a small change in the clad RI can induce a small red shift...Show More
Tunable Dual-Band Perfect Absorber Based on L-Shaped Graphene Resonator
Yulin Xiang;Lingling Wang;Qi Lin;Shengxuan Xia;Meng Qin;Xiang Zhai
IEEE Photonics Technology Letters
Cited by: Papers (29)
We propose and investigate a tunable dual-band perfect absorber consisting of double asymmetric L-shaped graphene resonators (LSGRs) and a metal ground plane spaced by a thin SiO2 dielectric layer. The numerical results reveal that the presented absorber expresses two resonance peaks in the mid-infrared region, where their absorption coefficients are on average larger than 98.77%. The electromagne...Show More
Resonant Wavelength Thermal Stability of Fiber Bragg Gratings Produced by Femtosecond Laser
Tiago Paixão;Luís Ferreira;Francisco Araújo;Paulo Fernando da Costa Antunes
Journal of Lightwave Technology
Cited by: Papers (1)
This study is focused on the fiber Bragg gratings central resonant wavelength thermal stability, fabricated by the point-by-point inscription method, using an infrared femtosecond laser. A new methodology is proposed to analyze the refractive index decay using the central wavelength shift of fiber Bragg gratings, executing stepped and continuous annealing regimes up-to a maximum temperature of 800...Show More
Compact Thermally Tunable Silicon Wavelength Switch: Modeling and Characterization
Xuan Wang;Jose A. Martinez;Magdalena S. Nawrocka;Roberto R. Panepucci
IEEE Photonics Technology Letters
Cited by: Papers (40)
A wavelength-selective photonic switch is developed based on a Si microring resonator using thermooptic effect. The 10-mum-diameter microring resonator uses single-mode strip Si waveguides of dimension 0.25 mum times 0.45 mum operating at 1.5 mum. Full-width at half-maximum are in the range 0.1-0.2 nm. The ultrawide tunable range (>6.4 nm) and wide free spectral range (~18 nm) of the switch elemen...Show More
A transmission-based surface plasmon resonance (SPR) sensor for label-free detection of protein-carbohydrate and protein-protein binding proximate to a perforated gold surface is demonstrated. An SPR instrument makes real-time measurements of the resonant wavelength and/or the resonant angle of incidence of transmitted light; both are influenced by the presence of proteins at the gold surface-liqu...Show More
Surface Plasmon Resonance based Highly Sensitive Optical Fiber Sensor for Detection of Urease Enzyme in Soil: Real-World Application and Binding Insights with Inhibitor
IEEE Sensors Journal
Year: 2025 | Early Access Article |
Urease is an enzyme found in soil, which plays a crucial role in soil’s health by catalyzing the hydrolysis of urea. Surface Plasmon Resonance (SPR) based optical fiber sensors have been wildly popular for the detection of a large number of molecules with benefits like miniaturization and real-time monitoring. This study presents the development of a fiber optic SPR (FO-SPR) sensor for precisely d...Show More
Design of a tunable GaAs/AlGaAs multiple-quantum-well resonant-cavity photodetector
We describe a tunable p-i-n photodetector using GaAs/AlGaAs multiple quantum wells (MQW) embedded in a vertical resonant cavity. The structure is similar to that employed for Fabry-Perot MQW modulators and lasers. Turnability is achieved by utilizing the quantum-confined Stark effect. The calculated response predicts a tuning range up to 20 nm. As a dual-channel wavelength-division demultiplexer, ...Show More
A new method based on introducing a photonic crystal fiber (PCF) in-line interferometer for hydrogen sensing is demonstrated. One end-face of the PCF and part of the outer-face of the fiber are plated with a thin palladium film by magnetron sputtering, while the other end is connected to the optical path. Therefore, a set of reflection-type all-fiber hydrogen sensor system is accomplished. Hydroge...Show More
Thermal Sensing Using Micro-ring Resonators in Optical Network-on-Chip
Weichen Liu;Mengquan Li;Wanli Chang;Chunhua Xiao;Yiyuan Xie;Nan Guan;Lei Jiang
2019 Design, Automation & Test in Europe Conference & Exhibition (DATE)
Year: 2019 | Conference Paper |
Cited by: Papers (6)
In this paper, we for the first time utilize the micro-ring resonators (MRs) in optical networks-on-chip (ONoCs) to implement thermal sensing without requiring additional hardware or chip area. The challenges in accuracy and reliability that arise from fabrication-induced process variations (PVs) and device-level wavelength tuning mechanism are resolved. We quantitatively model the intrinsic therm...Show More
Influence of Side-Polished Fiber Surface Topography on Surface Plasmon Resonance Wavelengths and the Full Width at Half-Maximum
Zhiyong Bai;Mingquan Li;Jing Zhao;Shaoqing Cao;Ying Wang;Changrui Liao;Yiping Wang
The influence of surface topography of side-polished fiber on resonance wavelengths and the full-width-at-half-maximum (FWHM) of surface plasmon resonance was evaluated in this work, based on the power spectrum density, wavelet, and finite-difference time-domain methods. The abrasive size determined the surface topography with various spatial period components. Coarse abrasives induced obvious low...Show More
Rapid Detection of Brain Lesions using Biosensor Based 2D Photonic Crystal
2021 IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT)
Year: 2021 | Conference Paper |
A Biosensor is a device used to detects analytes from the biological component. Regular cells are linked to various types of brain cancerous cells in this study. The RI of various types of brain cancer cells is relative to the RI of normal cells in the biosensor sensing mechanism, resulting in a related change in intensity and wavelength. We investigate the identification of brain defects using a ...Show More
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