基于金屬填充型光子晶體光纖的傳輸特性研究
發(fā)布時(shí)間：2018-08-05 13:52
【摘要】：隨著科技的進(jìn)步與發(fā)展,產(chǎn)品向小型化、輕量化發(fā)展的趨勢(shì)變的越來(lái)越明顯。在光學(xué)領(lǐng)域,對(duì)于常用的偏振濾波器來(lái)說(shuō)只對(duì)很小的頻率范圍或某一入射角度范圍有效,而且其體積比較大、不利于實(shí)現(xiàn)光學(xué)集成。在環(huán)境水質(zhì)檢測(cè)與醫(yī)療診斷等方面如何實(shí)現(xiàn)實(shí)對(duì)被檢測(cè)物的實(shí)時(shí)在線檢測(cè)及其傳感器的小型化也是人們一直在追求的目標(biāo)。利用光子晶體光纖來(lái)制作偏振濾波器或傳感器不僅可以達(dá)到體積小、易集成的目的,而且有望在其性能方面實(shí)現(xiàn)較大幅度的提升。本文利用有限元方法對(duì)基于金屬表面等離子體共振型光子晶體光纖偏振濾波器和傳感器進(jìn)行數(shù)值模擬,在光子晶體光纖偏振濾波器和傳感器的設(shè)計(jì)過(guò)程中,發(fā)現(xiàn)“非對(duì)稱因素”的利用是提升其性能的關(guān)鍵。論文的主要內(nèi)容如下:首先,介紹光子晶體光纖的產(chǎn)生背景、在光學(xué)領(lǐng)域的重要研究?jī)r(jià)值以及其最新發(fā)展?fàn)顩r。其次,在研究金屬填充光子晶體光纖的過(guò)程中,利用表面等離激元和表面等離子體共振效應(yīng)來(lái)解釋光纖基質(zhì)與金屬之間發(fā)生的新奇現(xiàn)象。提出一種填充金屬膜的空氣孔排列呈橢圓形結(jié)構(gòu)的光子晶體光纖偏振濾波器并對(duì)其性能進(jìn)行了分析。再次,進(jìn)一步設(shè)計(jì)了幾種不同結(jié)構(gòu)的光子晶體光纖濾波器,充分證明了本文提出的“非對(duì)稱因素”對(duì)光子晶體光纖器件設(shè)計(jì)和性能優(yōu)化所產(chǎn)生的重要影響,發(fā)現(xiàn)“非對(duì)稱因素”的利用是提升其性能的關(guān)鍵。最后,設(shè)計(jì)了一種有關(guān)液體折射率探測(cè)的傳感器。數(shù)值模擬結(jié)果表明本文所設(shè)計(jì)的傳感器可以將其靈敏度提升至常見(jiàn)傳感器靈敏度的兩倍以上,相應(yīng)的器件有望對(duì)液體實(shí)現(xiàn)高靈敏度檢測(cè)。本文充分利用“非對(duì)稱因素”對(duì)光子晶體光纖偏振濾波器和傳感器進(jìn)行設(shè)計(jì)和性能優(yōu)化,這對(duì)光子晶體光纖的設(shè)計(jì)和制備具有重要的理論指導(dǎo)意義。
[Abstract]:With the progress and development of science and technology, the trend of product miniaturization and lightweight development is becoming more and more obvious. In the optical field, the polarization filter is only effective for a small frequency range or an angle of incidence range, and its volume is relatively large, which is not conducive to the realization of optical integration. How to realize the real-time on-line detection of the detected object and the miniaturization of the sensor in the aspects of environmental water quality detection and medical diagnosis is also the goal that people have been pursuing all the time. Using photonic crystal fiber to fabricate polarization filter or sensor can not only achieve the goal of small size and easy integration, but also can improve its performance greatly. In this paper, the finite element method is used to simulate the polarization filter and sensor of photonic crystal fiber based on metal surface plasmon resonance. In the process of designing the polarization filter and sensor of photonic crystal fiber, It is found that the use of asymmetric factors is the key to improve its performance. The main contents of this paper are as follows: firstly, the background of photonic crystal fiber (PCF), its important research value in optical field and its latest development are introduced. Secondly, in the process of studying metal-filled photonic crystal fiber, the surface isotherm and surface plasmon resonance effect are used to explain the novel phenomenon between the matrix and metal. A photonic crystal fiber polarization filter with elliptical structure of air holes filled with metal film is proposed and its performance is analyzed. Thirdly, several kinds of photonic crystal fiber filters with different structures are further designed, which fully proves the important influence of the asymmetric factors proposed in this paper on the design and performance optimization of photonic crystal fiber devices. It is found that the use of asymmetric factors is the key to improve its performance. Finally, a sensor for liquid refractive index detection is designed. The numerical simulation results show that the sensor designed in this paper can increase the sensitivity of the sensor to more than twice the sensitivity of common sensors, and the corresponding devices are expected to achieve high sensitivity to liquid detection. In this paper, we make full use of "asymmetric factors" to design and optimize the performance of photonic crystal fiber polarization filters and sensors, which is of great theoretical significance for the design and fabrication of photonic crystal fibers.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TP212;TN713
本文編號(hào)：2165990
[Abstract]:With the progress and development of science and technology, the trend of product miniaturization and lightweight development is becoming more and more obvious. In the optical field, the polarization filter is only effective for a small frequency range or an angle of incidence range, and its volume is relatively large, which is not conducive to the realization of optical integration. How to realize the real-time on-line detection of the detected object and the miniaturization of the sensor in the aspects of environmental water quality detection and medical diagnosis is also the goal that people have been pursuing all the time. Using photonic crystal fiber to fabricate polarization filter or sensor can not only achieve the goal of small size and easy integration, but also can improve its performance greatly. In this paper, the finite element method is used to simulate the polarization filter and sensor of photonic crystal fiber based on metal surface plasmon resonance. In the process of designing the polarization filter and sensor of photonic crystal fiber, It is found that the use of asymmetric factors is the key to improve its performance. The main contents of this paper are as follows: firstly, the background of photonic crystal fiber (PCF), its important research value in optical field and its latest development are introduced. Secondly, in the process of studying metal-filled photonic crystal fiber, the surface isotherm and surface plasmon resonance effect are used to explain the novel phenomenon between the matrix and metal. A photonic crystal fiber polarization filter with elliptical structure of air holes filled with metal film is proposed and its performance is analyzed. Thirdly, several kinds of photonic crystal fiber filters with different structures are further designed, which fully proves the important influence of the asymmetric factors proposed in this paper on the design and performance optimization of photonic crystal fiber devices. It is found that the use of asymmetric factors is the key to improve its performance. Finally, a sensor for liquid refractive index detection is designed. The numerical simulation results show that the sensor designed in this paper can increase the sensitivity of the sensor to more than twice the sensitivity of common sensors, and the corresponding devices are expected to achieve high sensitivity to liquid detection. In this paper, we make full use of "asymmetric factors" to design and optimize the performance of photonic crystal fiber polarization filters and sensors, which is of great theoretical significance for the design and fabrication of photonic crystal fibers.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TP212;TN713
【參考文獻(xiàn)】
相關(guān)期刊論文 前1條
1 薛文瑞;郭亞楠;張文梅;;Modified surface plasmonic waveguide formed by nanometric parallel lines[J];Chinese Physics B;2010年01期
，本文編號(hào)：2165990
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