Ultra high-speed optical control of the quantum wave-packets which exercises from the interaction between molecules

通过分子间相互作用实现量子波包的超高速光学控制

• 批准号: 13440171
• 负责人: SATO Yukinori
• 金额: $ 9.28万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13440171/
• 关键词: Wave-packets control; Coherent control; Vibration quantum wave-packet; Attosecond phase; Quantum intervention; Ramsey irragularity; Ramsey intervention; Van der Waals interaction; ラケゼイ変調; 量子波束制御; 波束干渉; アト秒光制御; 分子振動波束; 純粋量子状態; ヴァン・デル・ワールス錯体 /; Wave-packets control; Coherent control; Vibration quantum wave-packet; Attosecond phase; Quantum intervention; Ramsey irragularity; Ramsey intervention; Van der Waals interaction; ラケゼイ変調; 量子波束制御; 波束干渉; アト秒光制御; 分子振動波束; 純粋量子状態; ヴァン・デル・ワールス錯体 /

This research carried out using the ultrashort pulse laser of range for the purpose of performing generation and its phase control of a molecule oscillatory wave bunch. As an object system, 2 very low temperature atom molecules (HgAr Van Dell WARUSU complex) generated in the supersonic jet are chosen. A laser pulse with a 300femto second of timerange(1femtosecond=10^<-15>second) and a main wavelength of about 254nm is irradiated at this molecule. The oscillating quantum wave bunch which consists of superposition of three oscillating peculiar states (v=3,4,5) into the potential well of the excitation electronic state (A state) of the minimum grade is generated. The probe of the result of interference of two quantum wave bunches which two optical pulses generate is carried out by the third laser pulse. It is the important part portion of this research to have developed the "ATO second phase regulator" which operates the relative phase between two laser pules in the accuracy of an about 10atto second (1 attosecond=10^<-18>second). The Quantum Interference showed interference contrast and safety very high (close to about 100%) like there is no example of a report until now. Moreover, based on the exact part optical data about the electronic state of a HgAr molecule, simulation calculation about the formation and control of a quantum wave bunch in this experiment was performed, and it used for visualization the various wave-packet models by which the principle of the wave-packet control in this molecule was interpreted and controlled.

这项研究使用范围的超短脉冲激光器进行，目的是进行产生及其对分子振荡波束的相位控制。作为对象系统，选择了2个非常低的温度原子分子（Hgar van dell Warusu络合物）在超音速射流中产生。在该分子处辐射的，具有300FEMTO秒的激光脉冲（1femtosecond = 10^<-15>秒）和大约254nm的主波长。由三个振荡奇特状态（v = 3,4,5）组成的振荡量子波束将最低级别的激发电子状态（一个状态）的潜在孔组成。两个量子波束的干扰结果的探针由第三个激光脉冲进行。这项研究的重要部分是开发了“ ATO第二相调节器”，该调节器在大约10 Atto秒的准确性（1个attosecond = 10^<-18>秒）中运行两个激光脉冲之间的相对相。量子干扰显示出干扰对比度和安全性很高（接近约100％），就像到目前为止没有报告的例子。此外，根据有关HGAR分子的电子状态的确切部分的光学数据，进行了对本实验中量子波束的形成和控制的模拟计算，并用于可视化各种波包模型，通过该模型，该分子中波包控制的原理被解释和控制。