IR-Vis sum-frequency generation circular-dichroism studies on ultra-thin films of chiral molecules.

手性分子超薄膜的红外-可见和频圆二色性研究。

• 批准号: 14340178
• 负责人: OUCHI Yukio
• 金额: $ 9.28万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14340178/
• 关键词: SFG; Sum-frequency generation; ionic liquid; molecular chirality; 和周波混合

We have investigated IR-Vis Sum-Frequencey-Generation Circular Dichroism of the ultra-thin films of chihalmolecules, which has been attracted considerable attention for biological and/or medical application. This technique may possibly provide 10^8 times more efficiency than those from any conventional techniques to study the chirarity of the molecules.We have reformed our old conventional ps-YAG laser and OPG/OPA system with LBO Crystal. We obtained IR laser beams by taking differential frequency of a fundamental YAG and the idler beam of OPA on a AgGaS_2 crystal. We have inserted a quater-wave plate into a visible beam to make left and right polarized light, and then mixed with the IR beam to obtain SFG-CD signal.The samples used in the experiment were ferro-and antiferro-electric liquid crystal molecules. We have successfully obtained SFG-CD signal for mono-molecular-layer thick samples. We have extended IV-SFG studies on the air/liquid interface structure of room temperature ionic liquids. In relation to this experiment, we have also performed the studies of molecular conformation by using near edge X-ray absorption fine structure spectroscopy.

我们研究了chihalmolecules超薄膜的IR-Vis和频产生圆二色性，这在生物学和/或医学上的应用已经引起了相当大的关注。该技术可能提供比任何传统技术高10^8倍的效率来研究分子的手性。我们用LBO晶体改造了传统的ps-YAG激光器和OPG/OPA系统。利用AgGaS_2晶体上的基态YAG和OPA的空转光束的差频得到红外激光束。我们在可见光束中插入四分之一波片，产生左右偏振光，然后与红外光束混合，得到SFG-CD信号。实验中使用的样品是铁电和反铁电液晶分子。我们成功地获得了单分子层厚样品的SFG-CD信号。我们对室温离子液体的气/液界面结构进行了扩展的IV-SFG研究。与此实验相关，我们还利用近边x射线吸收精细结构光谱对分子构象进行了研究。

项目成果

Spontaneous Buildup of Giant Surface Potential by the Deposition of Alq_3

Alq_3 沉积自发形成巨大表面电势

• 发表时间: 2003
• 期刊: Synth.Met. 137
• 作者: Adil EL Bourichi;Hiroto Yasuura;D. Kaneko;E.Ito
• 通讯作者: E.Ito

Formation of Merocyanine Self-assembled Monolayer and Its Nonlinear Optical Properties Probed by Second-harmonic Generation and Surface Plasmon Resonance

二次谐波产生和表面等离子体共振探讨部花青自组装单分子层的形成及其非线性光学性质

• 发表时间: 2003
• 期刊: Jpn. J. Appl. Phys. 42
• 作者: 三輪英樹;堂後靖博;井上弘士;村上和彰;Y.Yanagase;K. Tsuboi
• 通讯作者: K. Tsuboi

Study of The Ihteraction of Tris-(8-hydroxyquinoline) Aluminum(Alq_3) with Potassium Using Vibrational Spectroscopy : Examination of Possible Isomerization upon K doping

使用振动光谱法研究三（8-羟基喹啉）铝（Alq_3）与钾的相互作用：K 掺杂时可能的异构化检查

• 发表时间: 2004
• 期刊: J.Appl.Phys. 96
• 作者: R.Kanya;Y.Ohshima;Y.Sakurai
• 通讯作者: Y.Sakurai

D.Kim: "Polymer Surfaces Studied by Sum-frequency Vibrational Spectroscopy"J.Korean Vac.Soc.. 12(S1). 70-73 (2003)

D.Kim：“通过和频振动光谱研究聚合物表面”J.Korean Vac.Soc.. 12(S1)。

IRRAS and LEED studies of films of the long chain n-alkane n-C44H90 on Cu(1 0 0) and Cu(1 1 0)

• DOI: 10.1016/s0169-4332(03)00129-6
• 发表时间: 2003-05
• 期刊: Applied Surface Science
• 影响因子: 6.7
• 作者: Y. Hosoi;Yoshie Niwa;Y. Sakurai;H. Ishii;Y. Ouchi;K. Seki