Quantum cutting localaized emission from the excitons in photonic crystals fabricated by femtosecond laser

飞秒激光制造的光子晶体中激子的量子切割局域发射

• 批准号: 23656393
• 负责人: KODAMA Nobuhiro
• 金额: $ 2.5万
• 依托单位: Akita University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23656393/
• 关键词: フォトニック結晶; アブレーション; 真空紫外分光; 励起子

We report the fabrication of nanohole arrays in 1/3Li2O-2/3B2O3 (LTB)glass and a Li2B4O7 (LTB) crystal with the same Li+/B3+ composition ratio of1:2, and in 1/4Li2O-3/4B2O3 (LBO) glass and a LiB3O5 (LBO) crystal with the same Li+/B3+ composition ratio of 1:3. Nanoholes were fabricated using femtosecond laser ablation (W = 775 nm).The FE-SEM images reveal the formation of cylindrical nanoholes with subwavelength diameters on the LBO and LTB glasses, whereas almos quadrangular nanoholes with subwavelength edges were formed on the LTB and LBO crystals. The hole size decreased with decreasing pulse energy. The observed diameter D of the nanoholes on the LTB and LBO glasses was 3W/5-4W/5 and 9W/10-14W/5 , respectively, and the edge length of the quadrangular nanoholes on the LTB and LBO crystals was W/5-3W/10 and W/4-3W/2, respectively. The morphology of the quadrangular holes on the LTB and LBO crystals is considered to reflect their respective tetragonal and orthorhombic unit cells.

报道了1/3Li2O-2/3B2O3(LTB)玻璃和Li+/B3+组成比为1：2的Li2B4O7(LTB)玻璃和Li+/B3+组成比为1：3的1/4Li2O-3/4B2O3(LBO)玻璃和LiB3O5(LBO)晶体中纳米孔阵列的制备。小孔尺寸随脉冲能量的减小而减小。观察到LTB和LBO玻璃上纳米孔的直径分别为3W/5-4W/5和9W/10-14W/5，LTB和LBO晶体上的四边形纳米孔的边缘长度分别为W/5-3W/10和W/4-3W/2。LTB和LBO晶体上的四边形孔洞的形态被认为反映了它们各自的四方晶胞和正交晶胞。

项目成果

Temperature dependence of persistent phosphorescence in Eu2+-doped Ba3SiO5

• DOI: 10.1016/j.optmat.2014.05.017
• 发表时间: 2014-09
• 期刊: Optical Materials
• 影响因子: 3.9
• 作者: M. Yamaga;Y. Masui;N. Kodama

フェムト秒レーザーによるホウ酸塩ガラスへのナノホールアレイの形 : 2 次元フォトニック結晶作の試み

使用飞秒激光在硼酸盐玻璃中形成纳米孔阵列：创建二维光子晶体的尝试

• 发表时间: 2011
• 作者: 高橋智子;蒲木英之;小玉展宏
• 通讯作者: 小玉展宏

Intrinsic Luminescence and Energy Transfer from Self-trapped Excitons in Binary Scandium Borates under Vacuum UV Excitation

真空紫外激发下二元硼酸钪自陷激子的本征发光和能量转移

• 发表时间: 2014
• 作者: Kurauchi;F.;Schmoecker;J.-D. and Shimamoto;H.;Nobuhiro Kodama;Nobuhiro Kodama
• 通讯作者: Nobuhiro Kodama

Morphology of nanoholes in borate crystals and glasses fabricated by femtosecond laser ablation

飞秒激光烧蚀制造的硼酸盐晶体和玻璃中纳米孔的形态

• 发表时间: 2014
• 作者: Kurauchi;F.;Schmoecker;J.-D. and Shimamoto;H.;Nobuhiro Kodama
• 通讯作者: Nobuhiro Kodama

真空紫外励起LaSc_3(BO_3)_4における自己束縛励起子からLn^<3+>(Ln^<3+>=Sm^<3+>, Tb^<3+>, Gd^<3+>)へのエネルギー移動 : ダイナミクスと温度依存

从真空中自束缚激子紫外激发LaSc_3(BO_3)_4到Ln^<3+>(Ln^<3+>=Sm^<3+>,Tb^<3+>,Gd^<3+>)能量转移：动力学和温度依赖性

• 发表时间: 2013
• 作者: 阿部明莉;高橋智子;森澤唯;小玉展宏
• 通讯作者: 小玉展宏