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Wyszukujesz frazę "Jiang, Zhen" wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Investigation of coupling effect between a unidirectional air waveguide and two cavities with one-way rotating state
Autorzy:
Gao, Yongfeng
He, Liu
Jiang, Zhen
Zhou, Jun
Shi, Yuejia
Bai, Wenfang
Powiązania:
https://bibliotekanauki.pl/articles/174202.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
waveguide-cavity coupling
magneto-optical photonic crystal
unidirectional air waveguide
one-way rotating state
finite element method
Opis:
In the paper we present an implementation of resonance coupling between a unidirectional air waveguide and two cavities with one-way rotating state in a two-dimensional dielectric photonic crystal and a magneto-optical photonic crystal. We theoretically calculate the dispersion curves of the line defect waveguide and the dispersion curves of waveguide-cavity interaction, respectively. Numerical simulations show that, via waveguide-cavity coupling, a series of interesting resonance phenomena can be generated in the system. By modifying direction of the applied external magnetic field, storing and discharging of photonic energy can be realized. Our work may provide a practical and useful guidance for optical communications.
Źródło:
Optica Applicata; 2020, 50, 1; 49-59
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical analysis of slow and fast light effect in semiconductor optical amplifier with certain facet reflection
Autorzy:
Qin, Cui
Jiang, Yu
Zhen, Li
Powiązania:
https://bibliotekanauki.pl/articles/2172851.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
semiconductor optical amplifier
slow light
fast light
coherent population oscillation
Opis:
In this paper, the slow and fast light (SFL) effects of the semiconductor optical amplifier (SOA) having certain facet reflections are theoretically investigated. The theoretical model is used to account for the SFL phenomenon causing the coherent population oscillation. The influence of the current modulation frequency, the value of the current, the linewidth enhancement factor, facet reflectivity as well as the relative phase of the modulated current on the phase delay in the SOA are studied. It is demonstrated that the SFL effect could be controlled by the modulation frequency, the value and relative phase of the current. Finally, it is shown that the magnitude of the SFL delay could be tuned by a change in the linewidth enhancement factor as well as the facet reflectivity of the SOA.
Źródło:
Optica Applicata; 2022, 52, 4; 655--667
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sensitivity enhancement of a wavelength interrogation-based optical fiber surface plasmon resonance sensor for hemoglobin concentration using barium titanate
Autorzy:
Shi, Zhen-Jiang
Guo, Shi-Liang
Li, Xin
Li, Zhi-Quan
Meng, Shu-Han
Li, Chong-Zhen
Powiązania:
https://bibliotekanauki.pl/articles/27310091.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
surface plasmon resonance
wavelength interrogation
barium titanate
sensitivity enhancement
hemoglobin concentration
Opis:
In this paper, the performances of a wavelength interrogation-based optical fiber surface plasmon resonance sensor for hemoglobin (Hb) concentration is investigated by theoretical simulation. The proposed configuration incorporates optical fiber, 70 nm silver, 18 nm barium titanate (BaTiO3), and 2 nm zinc oxide. Simulation results show the sensor exhibits refractive index sensitivity of 4023 nm/RIU and concentration sensitivity of 10.0873 nm/(g∙dL), along with Hb concentration varying from 0 to 14 g/dL. This paper especially focuses on the influence of BaTiO3 on the performances of the proposed sensor with light wavelength ranging from 350 to 1000 nm. Comparison analysis indicates sandwiching 18 nm BaTiO3 between sensing layers not only enhances the concentration sensitivity by 30.14% but also decreases the nonlinear error of the sensor from 0.68% to 0.63%. For a wavelength accuracy of 0.1 nm, the proposed sensor can provide a resolution of 0.0099 g/dL for Hb concentration detection.
Źródło:
Optica Applicata; 2023, 53, 2; 167--184
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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