一維超導光子晶體濾波器之設計與研究
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2012
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光子晶體是具有空間週期性特性的光學介質。本論文目的是在設計和研究一維超導光子晶體的濾波特性。在這篇論文中，我們有三個主題。第一個是採用轉移矩陣法研究超導薄膜上的缺陷模式在介質光子晶體異質結構 （PCH）中的影響。建議的結構在計算垂直入射和斜向入射TE和TM模式的透射光譜。內嵌式的超導薄膜扮演著優化代理光子晶體異質結構缺陷模的角色。
第二部分是在光子晶體（PC）的基礎上使用超導缺陷的雙通道可調諧濾波器的設計和分析。我們探討在相等和不相等的超導薄膜厚度的變化會如何影響濾波特性。然後，我們論證了雙通道濾波器的溫度調諧在使用超導薄膜作為缺陷層上的使用。接下來，我們顯示了對TE波以不同的角度入射的透射光譜，。
第三部分是在分析包含超導材料光子量子井（PQW）的傳輸性能。我們考慮兩種可能的PQW結構，(AB)P(CD)Q(AB)P -不對稱和(AB)P(CD)Q(BA)P -對稱，主要的光子晶體(AB)P是由介電質組成的，A=鈦酸鍶，B=氧化鋁和光子量子井(CD)Q包含D = A和超導層C = YBa2Cu3O7-x，是一個典型的高溫超導薄膜製成的。光子屏障的堆積數目，可以用來作為一個可調諧劑以獲得可調諧濾波器。
Photonic crystals are optical media with spatially periodic properties. The aim of the present project is to design and study of filtering properties in the one-dimensional superconducting photonic crystal. In this thesis, we have three topics. The first one is to study effectsof superconducting film on the defect mode in dielectric photonic crystal heterostructure (PCH) by using the transfer matrix method. The proposed structure calculated transmittance spectra in normal incidence and oblique incidence for both TE and TM modes. The embedded superconducting thin film plays the role of tuning agent for the defect mode of PCH. The second part is to design and analysis of photonic crystal (PC) dual-channel tunable filter based on the use of superconducting defects. We investigate how the variation in the equal and unequal thickness of superconducting thin film affects the filtering properties. Then we demonstrate the temperature tuning of the dual-channel filter based on the use of superconducting thin film as defect layer. Next, we show the transmittance spectra of the TE wave at different angles of incidence. The third part is analysis of transmission properties in a photonic quantum well (PQW) containing superconducting materials. We consider two possible PQW structures, (AB)P(CD)Q(AB)P-asymmetric and (AB)P(CD)Q(BA)P-symmetric, where the host photonic crystal (AB)P is made of dielectrics, A = SrTiO3, B = Al2O3, and the PQW (CD)Q contains D = A and superconducting layer C = YBa2Cu3O7-x, a typical high-temperature superconducting thin film. The stack number of photonic barriers can be used to play as a tunable agent in order to obtain a tunable filter.
Photonic crystals are optical media with spatially periodic properties. The aim of the present project is to design and study of filtering properties in the one-dimensional superconducting photonic crystal. In this thesis, we have three topics. The first one is to study effectsof superconducting film on the defect mode in dielectric photonic crystal heterostructure (PCH) by using the transfer matrix method. The proposed structure calculated transmittance spectra in normal incidence and oblique incidence for both TE and TM modes. The embedded superconducting thin film plays the role of tuning agent for the defect mode of PCH. The second part is to design and analysis of photonic crystal (PC) dual-channel tunable filter based on the use of superconducting defects. We investigate how the variation in the equal and unequal thickness of superconducting thin film affects the filtering properties. Then we demonstrate the temperature tuning of the dual-channel filter based on the use of superconducting thin film as defect layer. Next, we show the transmittance spectra of the TE wave at different angles of incidence. The third part is analysis of transmission properties in a photonic quantum well (PQW) containing superconducting materials. We consider two possible PQW structures, (AB)P(CD)Q(AB)P-asymmetric and (AB)P(CD)Q(BA)P-symmetric, where the host photonic crystal (AB)P is made of dielectrics, A = SrTiO3, B = Al2O3, and the PQW (CD)Q contains D = A and superconducting layer C = YBa2Cu3O7-x, a typical high-temperature superconducting thin film. The stack number of photonic barriers can be used to play as a tunable agent in order to obtain a tunable filter.
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光子晶體, Photonic crystal