A Molecular Study on Laser Ablation Dynamics of Organic Solids

有机固体激光烧蚀动力学的分子研究

• 批准号: 63430003
• 负责人: MASUHARA Hiroshi
• 金额: $ 14.78万
• 依托单位: Kyoto Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63430003/
• 关键词: Laser ablation; Laser annealing; Polymer film; Oxide superconductor; Excited states; LB film; Bilayer film; Time-resolved luminescence; レ-ザ-アニ-リング; 自己組織化; 二分子膜; 励起状態間相互作用; 時間分解蛍光

Laser ablation dynamics of pi-electronic solids and oxide superconducting materials has been studied by measuring time-resolved luminescence spectra just upon laser ablation. Poly(N-vinylcarbazole) and doped poly(methyl methacrylate) films reveals time evolutions from excimer and triplet states to plasma condition. Although ablation dynamics of some oxide superconductors is very complex, we obtained some information on the electronic states of fragmented atoms and ions. Immediate after irradiation, atoms and ions in the plasma are in the electronic ground state, then they are in the various excited states. Similar studies are also conducted for laser annealing which is considered to be a precursor process of laser ablation. A relation between morphological change and photoprocess was revealed from molecular and electronic view points.

通过测量激光烧蚀时的时间分辨发光光谱，研究了pi电子固体和氧化物超导材料的激光烧蚀动力学。聚(N-乙烯基咔唑)和掺杂聚甲基丙烯酸甲酯薄膜揭示了从准分子和三重态到等离子体状态的时间演化。虽然一些氧化物超导体的烧蚀动力学非常复杂，但我们得到了一些关于碎裂原子和离子的电子态的信息。等离子体中的原子和离子在辐照后立即处于电子基态，然后处于各种激发态。对于被认为是激光烧蚀的前驱过程的激光退火法也进行了类似的研究。从分子和电子角度揭示了形态变化与光过程的关系。

项目成果

J.P.Fouassier他: "Lasers in Polymer Science and Engineering:Applications Vol.2" CRC Press,USA, 270 (1990)

J.P. Fouassier 等人：“激光在聚合物科学与工程中的应用：应用卷 2” CRC Press，美国，270 (1990)

矢部明 他: "有機超薄膜入門" 培風館, 230 (1989)

Akira Yabe 等人：“有机超薄膜简介”Baifukan，230 (1989)

J.P.Fouassier 他: "Lasers in Polymer Science and Engineering:Applications Val.2" CRC Press,USA, 270 (1990)

J.P. Fouassier 等人：“激光在聚合物科学与工程中的应用：应用 Val.2” CRC Press，美国，270 (1990)

H. Fukumura, H. Nakaminami, S. Eura, H. Masuhara, and T. Kawai: "Time-Resolved Luminescence Spectroscopy of Plasma Emission from Laser Ablation of Bi-Sr-Ca-Cu-O Bulk Sample, the Amorphous, and the Unreacted Mixture" Applied Physics Letters.

H. Fukumura、H. Nakaminami、S. Eura、H. Masuhara 和 T. Kawai：“Bi-Sr-Ca-Cu-O 块状样品、非晶态和非晶态激光烧蚀等离子体发射的时间分辨发光光谱”

Hiroshi Masuhara et al.: "Molecular Studies on Laser Ablation Processes of Polymeric Materials by Time-Resolved Luminescence Spectroscopy" ACS Symposium Series. 412. 400-410 (1989)

Hiroshi Masuhara 等人：“通过时间分辨发光光谱对聚合材料激光烧蚀过程进行分子研究”ACS 研讨会系列。