Single nanobeam optical sensor with a high Q-factor and high sensitivity

Abstract The performance of one-dimensional photonic crystal for plasma cell application is studied theoretically. The geometry of the structure can detect the change in the refractive index of the plasma cells in a sample that infiltrated through the defect layer. We have obtained a variation on the resonant peak positions using the analyte defect layer with different refractive indices. The defect peak of the optimized structure is red-shifted from 2195 nm to 2322nm when the refractive index of the defect layer changes from 1.3246 to 1.3634. This indicates a high sensitivity of the device (S=3300 nm/RIU) as well as a high Q-factor (Q=103). The proposed sensor has a great potential for biosensing applications and the detection of convalescent plasma.

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High Q-factor multiple Fano resonances for high-sensitivity sensing in all-dielectric metamaterials

OSA Continuum ◽

10.1364/osac.2.002818 ◽

2019 ◽

Vol 2 (10) ◽

pp. 2818 ◽

Cited By ~ 4

Author(s):

Wudeng Wang ◽

Li Zheng ◽

Li Xiong ◽

Jianguang Qi ◽

Baoying Li

Keyword(s):

High Sensitivity ◽

Q Factor ◽

Fano Resonances ◽

High Q

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Design of Dual Band Meta-Material Resonator Sensor for Material Characterization

Applied Computational Electromagnetics Society ◽

10.47037/2020.aces.j.360414 ◽

2021 ◽

Vol 36 (4) ◽

pp. 473-478

Author(s):

Sucitra Harry ◽

Zahriladha Zakaria ◽

Maizatul Said ◽

Rammah Alahnomi ◽

M. Misran

Keyword(s):

Resonance Frequency ◽

Material Characterization ◽

Empirical Equation ◽

Narrow Band ◽

High Sensitivity ◽

Dual Band ◽

Network Analyzer ◽

Q Factor ◽

High Q ◽

Sensing Applications

This paper describes the design and implementation of the dual band metamaterial resonator for sensing applications by employing perturbation theory in which the dielectric properties of resonator affect Q-factor and resonance frequency. The designed sensor operates at two resonance frequency 3.20 GHz and 4.18 GHz in the range of 1 GHz to 5.5 GHz for testing solid materials. The Computer Simulation Technology (CST) software is used to design and model this sensor and it was analyzed by using vector network analyzer (VNA) for testing measurement. This study uses empirical equation from the tested materials with well-known permittivity to estimate the permittivity of other materials with unknown permittivity. The proposed sensor has achieved a narrow band with high Q-factor value of 642 and 521 at the operating frequencies of 3.16 GHz and 4.18 GHz respectively. These findings are compared with findings of previous study and the proposed sensor has achieved a high sensitivity and accuracy of 80% compare to others. This is proof that this senor could be used to characterize materials and sensing applications.

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High Q-factor multiple Fano resonances for high-sensitivity sensing in all-dielectric nanocylinder dimer metamaterials

Applied Physics Express ◽

10.7567/1882-0786/ab206a ◽

2019 ◽

Vol 12 (7) ◽

pp. 075002 ◽

Cited By ~ 4

Author(s):

Wu-Deng Wang ◽

Li Zheng ◽

Jian-Guang Qi

Keyword(s):

High Sensitivity ◽

Q Factor ◽

Fano Resonances ◽

High Q

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High-sensitivity and high-Q-factor glass photonic crystal cavity and its applications as sensors

Optics Letters ◽

10.1364/ol.40.001508 ◽

2015 ◽

Vol 40 (7) ◽

pp. 1508 ◽

Cited By ~ 21

Author(s):

Ashfaqul Anwar Siraji ◽

Yang Zhao

Keyword(s):

Photonic Crystal ◽

High Sensitivity ◽

Q Factor ◽

Photonic Crystal Cavity ◽

High Q

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High-Q-Factor Tunable Silica-Based Microring Resonators

Photonics ◽

10.3390/photonics8070256 ◽

2021 ◽

Vol 8 (7) ◽

pp. 256

Author(s):

Yue-Xin Yin ◽

Xiao-Pei Zhang ◽

Xiao-Jie Yin ◽

Yue Li ◽

Xin-Ru Xu ◽

...

Keyword(s):

Optical Communications ◽

Microring Resonator ◽

Microring Resonators ◽

Q Factor ◽

Notch Depth ◽

Critical Coupling ◽

Practical Application ◽

Coupling Condition ◽

High Q ◽

Racetrack Resonator

A high-Q-factor tunable silica-based microring resonator (MRR) is demonstrated. To meet the critical-coupling condition, a Mach–Zehnder interferometer (MZI) as the tunable coupler was integrated with a racetrack resonator. Then, 40 mW electronic power was applied on the microheater on the arm of MZI, and a maximal notch depth of about 13.84 dB and a loaded Q factor of 4.47 × 106 were obtained. The proposed MRR shows great potential in practical application for optical communications and integrated optics.

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Collision Induced Microwave Absorption in N2, CH4, and N2–Ar, N2–CH4 Mixtures at 1.1 and 2.3 cm−1

Canadian Journal of Physics ◽

10.1139/p74-112 ◽

1974 ◽

Vol 52 (9) ◽

pp. 821-829 ◽

Cited By ~ 8

Author(s):

I. R. Dagg ◽

G. E. Reesor ◽

J. L. Urbaniak

Keyword(s):

Microwave Absorption ◽

Quadrupole Moment ◽

Linear Dependence ◽

Relaxation Times ◽

High Sensitivity ◽

Higher Order ◽

Induced Absorption ◽

High Q ◽

Order Dependence

Collision induced microwave absorption is reported in pure N2, N2–Ar, N2–CH4, mixtures, and in pure CH4 in the 35 and 70 GHz regions (1.1 and 2.3 cm−1) at a temperature of 22 °C. The measurements are accomplished using overmoded high Q cavities capable of pressurization of up to 5000 p.s.i.g. The apparatus and method are described. With the high sensitivity attained, the results in pure N2 from 30 → 250 amagat reveal terms in the square and cube of the density from which the relaxation times are calculated. The linear dependence on frequency of the collision induced absorption up to 2.3 cm−1 is established. Higher order dependence on the density is observed in the N2–Ar and N2–CH4 mixtures. Various estimates of the quadrupole moment of N2 are given, making use of earlier results in other frequency regions.

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