強光子場による分子配列・変形の分光学的キャラクタリゼーション

使用强光子场进行分子排列和变形的光谱表征

• 批准号: 15035206
• 负责人: 大島 康裕
• 金额: $ 2.11万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15035206/
• 关键词: 強光子場; フェムト秒コヒーレント分光; 振動量子波束; 単一モードレーザー; パラメットリック発振; 強静電場分光

本研究は、周波数および実時間領域の分光学手法を用いて、強光子場による分子配列・変形の詳細を探ることを目的としている。本年度は、実験装置の整備として、(1)フェムト秒コヒーレント分光により分子の回転・振動運動の時間発展を追跡する計測システムの構築、(2)強光子場下の分子のエネルギー準位構造を精密に測定可能な高分解能レーザーの開発、に取り組んだ。(1)としては、測定の簡便性や多様な分子系へ適用可能であることを考慮して、蛍光検出one colorポンプ-プローブ計測法を採用した。現在、2つのフェムト秒パルスを共軸で照射する配置となっているため、そのままでは光電場の干渉効果が現れ、光路長の精密な制御や煩雑なスペクトルの解析が必要になる。そこで、核波束の時間発展のみを抽出するために、2つのパルス間の光位相をランダムに変調し、対応する蛍光信号の揺らぎを検出するCOIN法を適用した。実際の実験では、分光学的情報が完備しているヨウ素分子を取り上げた。光源は、研究室既存のチタンサファイアレーザー励起パラメトリック増幅器を用いたが、ヨウ素分子のB-X遷移を観測するために和周波発生が可能なように改良した。500〜700fs周期の振動波束の回帰を明瞭に観測することができた。断熱冷却された孤立分子に対するCOIN測定は本研究が初めてであり、常温セル条件下と比較して顕著な違いを見出した。(2)としては、連続発振の外部共振器半導体レーザーをシード光として、非線型結晶を用いてパラメトリック発振を行うシステムを構築している。現時点で、シード無しのパラメトリック発振で充分な出力を達成しており、単一モード発振を目指して光学系の精密な調整を行っている。また。強光子場分光実験と緊密に関係し理論解析の基礎となる、高静電場中に置かれた気相孤立分子の分光学的研究を行った。

In this study, the optical methods of optical analysis in the field of wave number measurement and time domain are used to arrange the molecules of the photon field electron microscope and the photon field in order to explore the structure of the laser. This year, the equipment is equipped with equipment, (1) the equipment is equipped with equipment, (1) the equipment is equipped with equipment this year, (1) the equipment is equipped with equipment this year, (1) the equipment is equipped with equipment this year, (1) the equipment is equipped with equipment this year, and (1) this year, the equipment equipment is equipped with equipment, (1) the equipment equipment is equipped with equipment, (1) the equipment equipment is equipped with equipment this year, (1) the equipment equipment is equipped with equipment, (1) the equipment equipment is equipped with equipment this year, (1) the equipment equipment is equipped with equipment, (1) the equipment equipment is equipped with equipment this year, (1) the equipment equipment is equipped with equipment this year, (1) the equipment equipment is equipped with equipment this year, (1) the equipment equipment is equipped with equipment this year, (1) the equipment equipment is equipped for this year, (1) the (1) to determine the convenience and convenience of the molecular system by using the method of one color measurement. At present, the total amount of light in two seconds is very high. Now, we need to configure the equipment, the light field, the light field, and the precision of the light path. The radar, the nuclear beam time display, the extraction device, the phase detector, the phase detector, the optical signal, the COIN method are used. In the light of the international situation, the information of the optical system is very important. The light source, the existing equipment in the laboratory, the equipment used in the laboratory, the light source, the existing laboratory equipment, the light source, the existing laboratory equipment, the light source, the existing laboratory equipment, the light source, the existing laboratory equipment, the light source, the existing laboratory equipment, the light source, the existing laboratory equipment, the light source, the existing laboratory equipment, the light source, the existing laboratory equipment, the light source, the existing laboratory equipment, the light source, the existing laboratory equipment, the light source, the existing laboratory equipment, the light source, the existing laboratory equipment, the light source, the existing laboratory equipment, the light source, the The 500~700fs cycle vibrating beam signal is clear that the system is very important. In this study, the temperature of the isolated molecules was measured by COIN. Under the conditions of normal temperature and room temperature, the temperature was measured. (2) the half-body structure of the external resonator, the external resonator and the external resonator. It is necessary to make a full effort to improve the precision precision of the department of optics. it refers to the precision equipment of the Department of Optics. ,. Strengthen the analysis of the theory of photon field spectroscopy and the study of the separation optics of phase isolated molecules.

项目成果

Y.Sumiyoshi, et al.: "Intermolecular potential energy surface of Ar-SH(^2Π_i) obtained by a simultaneous analysis of Ar-SH/D studied by FTMW spectroscopy."Journal of Molecular Spectroscopy. 222. 22-30 (2003)

Y.Sumiyoshi 等人：“通过 FTMW 光谱研究的 Ar-SH/D 同步分析获得的 Ar-SH(^2Π_i) 分子间势能表面。”分子光谱学杂志 222. 22-30 (2003) ）

R.Kanya, Y.Ohshima: "Electronic spectrum of the anthracene-ammonia complex"Physical Chemistry Chemical Physics. 5. 3851-3858 (2003)

R.Kanya，Y.Ohshima：“蒽-氨络合物的电子光谱”物理化学化学物理。

Y.Ohshima, et al.: "FTMW spectroscopy of jet-cooled 9-cyanoanthracene"Journal of Molecular Spectroscopy. 223. 148-151 (2003)

Y.Ohshima 等人：“喷射冷却 9-氰基蒽的 FTMW 光谱”分子光谱学杂志。