U-shaped photonic quasi-crystal fiber sensor with high sensitivity based on surface plasmon resonance

Liu, Qihui; Yan, Bei; Li, Jianjun

doi:10.7567/1882-0786/ab13bc

Cited by 73 publications

(30 citation statements)

References 39 publications

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“…Local surface plasmon resonance is an important branch of the surface plasmon field. In particular, the local surface plasmon resonance (LSPR) of Au nanoparticles (NPs) has received extensive attention for many years due to its unique optical properties [16][17][18]. Under the action of incident light, the collective oscillation of Au free electrons can enhance the local electromagnetic field on their surface [19].…”

Section: Introductionmentioning

confidence: 99%

A Tunable Triple-Band Near-Infrared Metamaterial Absorber Based on Au Nano-Cuboids Array

et al. 2020

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In this article, we present a design for a triple-band tunable metamaterial absorber with an Au nano-cuboids array, and undertake numerical research about its optical properties and local electromagnetic field enhancement. The proposed structure is investigated by the finite-difference time domain (FDTD) method, and we find that it has triple-band tunable perfect absorption peaks in the near infrared band (1000–2500 nm). We investigate some of structure parameters that influence the fields of surface plasmons (SP) resonances of the nano array structure. By adjusting the relevant structural parameters, we can accomplish the regulation of the surface plasmons resonance (SPR) peaks. In addition, the triple-band resonant wavelength of the absorber has good operational angle-polarization-tolerance. We believe that the excellent properties of our designed absorber have promising applications in plasma-enhanced photovoltaic, optical absorption switching and infrared modulator optical communication.

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Section: Introductionmentioning

confidence: 99%

A Tunable Triple-Band Near-Infrared Metamaterial Absorber Based on Au Nano-Cuboids Array

et al. 2020

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“…In addition, the unique optical properties of surface plasmons have a wide range of applications in photocatalysis [16][17][18][19][20], absorber [21][22][23][24], photolithography [25][26][27][28], filter [29,30], optical data storage [31,32], and other fields [33][34][35][36]. At present, one of the most important researches focusing on surface plasmons is refractive index sensing [37][38][39][40][41][42]. The resonance wavelength or angle of surface plasmons is extraordinarily sensitive to environmental changes and the range of surface plasmon effect can be controlled at the nano-scale, which results in a considerable application future in the development of high sensitivity, high integration, and portable refractive index sensors.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Refractive Index Sensors Based on One- and Two-Dimensional Gold Grating on a Gold Film

Zhu

Wang

et al. 2020

Photonic Sens

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In this paper, we propose two kinds of composite structures based on the one- and two-dimensional (1D&2D) gold grating on a gold film for plasmonic refractive index sensing. The resonance modes and sensing characteristics of the composite structures are numerically simulated by the finite-difference time-domain method. The composite structure of the 1D gold semi-cylinder grating and gold film is analyzed first, and the optimized parameters of the grating period are obtained. The sensitivity and figure of merit (FOM) can reach 660RIU/nm and 169RIU−1, respectively. Then, we replace the 1D grating with the 2D gold semi-sphere particles array and find that the 2D grating composite structure can excite strong surface plasmon resonance intensity in a wider period range. The sensitivity and FOM of the improved composite structure can reach 985RIU/nm and 298 RIU−1, respectively. At last, the comparison results of the sensing performance of the two structures are discussed. The proposed structures can be used for bio-chemical refractive index sensing.

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“…The sensitivity used in next section can be derived from (12) [27], where λ peak is the wavelength shift (nm) and…”

Section: Model and Methodsmentioning

confidence: 99%

Transverse-Stress Compensated Methane Sensor Based on Long-Period Grating in Photonic Crystal Fiber

et al. 2019

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A high-sensitive and transverse-stress compensated methane sensor based on a photonic crystal fiber long-period grating (PCF-LPG) is proposed. The outermost layer of the PCF consists of six large sideholes, five of which are coated with methane-sensitive compound film to achieve methane measurement. Such side-hole structure is helpful for gas sensitive reaction, but not conducive to avoiding external stress interference. Therefore, the last large hole is plated with silver layer to eliminate the cross-sensitivity effect through adding a Surface Plasmon Resonance (SPR) sensing channel with the consideration of photo-elastic effect and material deformation. Results show that the methane gas sensitivity can reach up to 6.39nm/% with the transverse-stress compensation. The sensor is very simple and effective, which provides a new method of gas measurement combined with different actual conditions. INDEX TERMS Methane sensor, transverse-stress compensation, photonic crystal fiber long period grating, surface plasmon resonance.

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U-shaped photonic quasi-crystal fiber sensor with high sensitivity based on surface plasmon resonance

Cited by 73 publications

References 39 publications

A Tunable Triple-Band Near-Infrared Metamaterial Absorber Based on Au Nano-Cuboids Array

A Tunable Triple-Band Near-Infrared Metamaterial Absorber Based on Au Nano-Cuboids Array

Plasmonic Refractive Index Sensors Based on One- and Two-Dimensional Gold Grating on a Gold Film

Transverse-Stress Compensated Methane Sensor Based on Long-Period Grating in Photonic Crystal Fiber

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