Bow-tie cavity ringdown spectroscopy for observing a circular dichroism of gas-phase molecules

用于观察气相分子圆二色性的领结腔衰荡光谱

• 批准号: 24655019
• 负责人: MATSUMOTO Yoshiteru
• 金额: $ 2.33万
• 依托单位: University of Hyogo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24655019/
• 关键词: キャビティリングダウン分光; 蝶タイ型キャビティ; 円偏光二色性; キャビティ増強吸収; 蝶タイ型光学キャビティ; エレクトロスプレーイオン化; 金属錯体イオン; キャビティ増強吸収分光

We tried to develop a brand-new cavity ringdown spectrometer, which is constructed by a bow-tie optical cavity. Our research goal is to achieve highly sensitive detection of a circular dichroism (CD) for the gas-phase molecule. In the 1st year, we studied the cavity ringdown measurement using a pulsed OPO laser system. However, we learned that a cavity enhanced absorption spectroscopy, which is combined with a continuous-wave (CW) laser, has substantially higher sensitivity than a pulsed ringdown technique. As a result, we have changed a spectroscopic technique for CD measurement in the 2nd year. We have examined a performance of the visible region CW laser, optimized the configuration of an optical cavity by two high reflective mirrors, and developed the detection technique of a transmitted light out of a cavity. These fundamental experiments will play roles in our future study of the CD measurement of gas-phase molecules.

我们尝试研制了一种全新的光腔衰荡光谱仪，它是由一个蝴蝶结光学腔构成的。我们的研究目标是实现气相分子的圆二色性（CD）的高灵敏度检测。在第一年，我们研究了利用脉冲OPO激光系统测量光腔衰荡。然而，我们了解到，与连续波（CW）激光器相结合的腔增强吸收光谱技术比脉冲衰荡技术具有更高的灵敏度。因此，我们在第二年改变了CD测量的光谱技术。我们考察了可见光区连续激光器的性能，优化了双高反镜光学腔的结构，并开发了腔外透射光的检测技术。这些基础实验将在我们今后研究气相分子的CD测量中发挥作用。

项目成果

Fish-Bite structure formed by 3-dimensional hydrogen bond acceptor in pyrrole and N-methylpyrrole binary clusters studied by IR absorption spectroscopy

红外吸收光谱研究吡咯和N-甲基吡咯二元簇中三维氢键受体形成的鱼咬结构

• 发表时间: 2012
• 作者: 松本剛昭;村上直;本間健二;Yoshiteru Matsumoto
• 通讯作者: Yoshiteru Matsumoto

Fish-Bite structure by 3-D hydrogen-bond acceptor: IR spectroscopy of Pyrrole & N-methylpyrrole binary clusters,

3-D 氢键受体的鱼咬结构：吡咯的红外光谱

• DOI: 10.1063/1.4746122
• 发表时间: 2012
• 期刊: J. Chem. Phys.
• 作者: Yoshiteru Matsumoto;Sunao Murakami;and Kenji Honma
• 通讯作者: and Kenji Honma

ピロール-ジエチルケトン二成分クラスターのN-H…O=C水素結合における異性化効果

吡咯-二乙酮二元簇中N-H…O=C氢键的异构化效应

• 发表时间: 2013
• 作者: 松本剛昭;石川達也;本間健二
• 通讯作者: 本間健二

Cyclic structure of (pyrrole)2-(acetone)1 binary trimer: Comparative study of the N-H--O=C hydrogen bond

(吡咯)2-(丙酮)1二元三聚体的环状结构：N-H--O=C氢键的比较研究

• DOI: 10.1016/j.cplett.2013.06.007
• 发表时间: 2013
• 期刊: Chem. Phys. Lett.
• 作者: Yoshiteru Matsumoto;Jun-ichi Iwamoto;and Kenji Honma
• 通讯作者: and Kenji Honma

IR spectroscopy of the hydrogen-bonded clusters by 3-dimensional acceptor in neutral and cationic states

中性和阳离子态 3 维受体氢键团簇的红外光谱

• 发表时间: 2013
• 作者: 松本剛昭;石川達也;本間健二;Yoshiteru Matsumoto
• 通讯作者: Yoshiteru Matsumoto