Experimental and Theoretical Study on 3D Photonic Crystals

3D光子晶体的实验和理论研究

• 批准号: 10044120
• 负责人: KAWAKAMI Shojiro
• 金额: $ 3.78万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10044120/
• 关键词: Photonic crystal; Autocloning; Polarization Splitter; Visible elements; optical waveguide; functional material; CdS; lattice modulation; 可視域; 導波路; TiO_2; SiO_2; サブミクロン周期構造; フォトニック・バンドギャップ; 偏光子; rfスパッタリング; スパッタエッチ

1. Improvement of polarization splitter characteristicsBy optimizing the shape of a unit cell of the crystal, extinction ratio, insertion loss, and their performance for angled-incidence case are improved. In addition, by adjusting the thickness of surface layers, anti-reflection termination was made possible.2. Development of photonic crystals in visible rangeWe have made photonic crystals for visible wavelength range with TiOィイD22ィエD2/TaィイD22ィエD2OィイD25ィエD2 material systems. By utilizing it, we have also demonstrated birefringent plates and polarization-sensitive gratings.3. Investigation for brand-gap wideningWe have theoretically demonstrated an feasibility of the absolute bandgap by the combination of the autocloning technology and RIE etching process. Preliminary experiments have been also carried out.4. Proposal of novel optical waveguidesWe have proposed novel optical waveguides by an introduction of lattice-modulation into the autocloned crystals. Results of numerical calculations revealed that such waveguide structure were useful for practical applications.5. Combination of functional materials and autocloned photonic crystalsWe have developed processes which enable introduction of Group II-IV materials such as CdS and Group III-V compound semiconductors such as GaAs into autocloned photonic crystals. Photoluminescence characteristics were also observed.

1.偏振分束器特性的改善通过优化晶体的晶胞形状，改善了消光比、插入损耗及其在角入射情况下的性能。另外，通过调节表面层的厚度，实现了减反射终端.可见光波段光子晶体的研究我们以TiO_（2+）D_（2+）D_（2+）/Ta_（2+）D_（2+）D_（2+）O_（2+）D_（25+）D_（2+）材料体系制备了可见光波段光子晶体。利用它，我们还演示了双折射板和偏振敏感光栅。带隙展宽的研究我们从理论上论证了利用自克隆技术和RIE刻蚀工艺相结合实现绝对带隙展宽的可行性。并进行了初步的实验研究.提出了一种新型光波导我们在自克隆晶体中引入晶格调制，提出了一种新型光波导。数值计算结果表明，这种波导结构具有实用价值.功能材料和自克隆光子晶体的组合我们已经开发了能够将II-IV族材料（如CdS）和III-V族化合物半导体（如GaAs）引入自克隆光子晶体的工艺。还观察到光致发光特性。

项目成果

川上彰二郎: "自己クローニングによる3次元フォトニック結晶の作製と応用" 電子情報通信学会論文誌 C-I. J81-C-I. 573-581 (1998)

Shojiro Kawakami：“通过自克隆制备三维光子晶体”IEICE Transactions C-I 573-581（1998）。

花泉修: "3次元フォトニック結晶へのIII V族化合物半導体活性層の埋込み"電子情報通信学会論文誌. J83-C-I-3(印刷中). (2000)

Osamu Hanaizumi：“三维光子晶体中 III-V 族化合物半导体活性层的嵌入”，电子、信息和通信工程师学会会刊 J83-C-I-3（出版中）。

O. Hanaizumi: "Embedding of III-V compound semiconductor active layers into 3D photonic crystals"Trans. IEICE. J83-C-I, no.3 (in press). (2000)

O. Hanaizumi：“将 III-V 化合物半导体有源层嵌入 3D 光子晶体”Trans。

大寺康夫: "Si/SiO_2系フォトニック結晶偏光分離素子" 電子情報通信学会総合大会. C-3-117 (1999)

Yasuo Otera：“Si/SiO_2基光子晶体偏振分束器”IEICE大会C-3-117（1999）。

川上彰二郎: "フォトニック結晶の作製・伝搬実験と解析について" 電気学会電磁界理論研究会資料. EMT. EMT98-153 (1998)

Shojiro Kawakami：“光子晶体的制备、传播实验和分析”日本电气工程师学会电磁场理论研究组的材料EMT98-153（1998）。