Research on quantum optical effects related to the optical near-field interactions of spin-polarized atoms

自旋极化原子光学近场相互作用相关的量子光学效应研究

基本信息

批准号：
14540374
负责人：
HORI Hirokazu
金额：
$ 2.37万
依托单位：
University of Yamanashi
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
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/grant/KAKENHI-PROJECT-14540374/
关键词：
near-field optics spin polarization optical pumping cavity quantum electrodynamics control of radiation laser cooling evanescent wave quantum optics 近接陽光学スピン編極

项目摘要

Experimental and theoretical study have been performed on the spin-dependent quantum-optical near-field interactions of spin-polarized Cs atoms with lattice-type spin-polarized array structure produced by near-field optical pumping by using local circular polarization of cross-propagated evanescent waves of TE incident condition on a planar dielectric surface. The aim of this research is the investigation of quantum mechanical and quantum optical behaviors of spin polarized atoms near material surface which alter the electromagnetic environment determining the selection rules and parity conservation laws in light-matter interaction.In the experimental study, we have, for the first time, succeeded to demonstrate the existence of the circularly rotating electric field in the optical near-fields produced by a superposition of a cross-propagating pair of TE-polarized evanescent waves on a prism surface. Using the local circular polarization, we have developed and investigated on (1) optica … More l setup to realize the lattice structure of spin polarized atomic array, (2) detector system of weak scattered light from the atomic lattice, (3) apparatus for the production of spin-polarized atomic lattice from a laser-cooled atomic crowd facilitated with a detection system composed of micro-channel plate and cooled CCD camera, (4) an ion guiding system to detect near-field optically ionized atomic particles with a single atom level sensitivity, (5) optical near-field spin sensitive laser ionization spectroscopy and microscopy system developed based on the experimental study of optical near-field two-photon resonance ionization spectroscopy which enables us to observe single atom level events related to the quantum optical dynamics of the spin-polarized atomic lattice. We have also developed a simple and convenient method of optical near-field spectroscopy with high sensitivity utilizing the frequency-modulation noise spectroscopy with semiconductor lasers. Based on these developments in experimental studies, we are proceeding to realize the spin polarized atomic lattice to investigate two-dimensional quantum system interacting with optical near-fields.In the theoretical study, we have developed a novel quantum optical theory of optical near-fields based on angular-spectrum representation of scattered electromagnetic waves and second quantization formalism based on detector-mode description. We have formulated the optical near-field interaction processes as a tunneling phenomenon of excitation and evaluated the spontaneous decay rates of electric and magnetic multipoles of arbitrary order near a dielectric surface. Based on these formulations, we have investigated the quantum optical behavior of spin-polarized atomic particles interacting with optical near-fields, which result in the spin dependent modulation of transition probability and alternation of selection rules as a general quantum electrodynamic effect known as cavity QED. These results have been also extended to the evaluation of fundamental processes taking place in nano-electronic and nano-eleclrooptical devices to open up new era of nanotechnology. Less

实验和理论研究已经对自旋依赖性的量子 - 光光检测近场相互作用与旋转型CS原子与晶格型自旋式偏振阵列结构结构的晶格型自旋阵列结构，该结构通过使用近场光学泵化来实现，该结构使用局部圆形圆形偏振在平面异质表面上的TE TE入射条件的交叉产生的EvineScent evineScent evineScent Wave。 The aim of this research is the investment of quantum mechanical and quantum optical behaviors of spin polarized atoms near material surface which alter the electronic environment determining the selection rules and parity conservation laws in light-matter interaction.In the experimental study, we have, for the first time, succeeded to demonstrate the existence of the circularly rotating electric field in the optical near fields produced by a superposition of a cross-propagating pair of TE-polarized evinescent waves on棱镜表面。使用局部循环化，我们已经在（1）选择……更多的设置上进行了开发和研究（4）一个离子引导系统，用于检测具有单个原子水平灵敏度的近场原子颗粒，（5）基于光学近场近距离近距离量子的实验性研究，可以在我们的定量范围内启用旋转级别的实验性，从而在实验研究中开发出光学近距离研究，从而启用了启用旋转级别的旋转，从而启用了启用量级的旋转，从原子晶格。我们还开发了一种简单便捷的光学近场光谱法，利用半导体激光器的频率调节噪声光谱法具有高灵敏度。基于实验研究中的这些发展，我们开始实现自旋极化原子晶格，以研究二维量子系统与光学近场相互作用。在理论研究中，我们开发了一种基于散射电子电波和基于秒量化量化剂的散射式电子电磁波的角度光谱的光学近场的新型量子光学理论。我们已经将光学近场相互作用过程提出为一种兴奋的隧道现象，并评估了在动态表面附近任意阶的电气和磁多物的赞助商样衰减速率。基于这些公式，我们研究了与光学近场相互作用的自旋偏振原子颗粒的量子光学行为，这导致了转变概率的自旋依赖性调制和选择规则的替代性，作为一般的量子电动力学效应，称为腔QED。这些结果也已扩展到评估纳米电子和纳米纤维化装置中发生的基本过程，以开发纳米技术的新时代。较少的