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Nonlinear and quantum optics of multidimensional and multiperiodic structures

多维和多周期结构的非线性和量子光学

基本信息

批准号：
13490001
负责人：
SAKODA Kazuaki
金额：
$ 6.91万
依托单位：
National Research Institute for Materials Science (2002-2003)Hokkaido University (2001)
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 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13490001/
关键词：
Photonic crystal Dielectic multilayer Atimulated emission Nonlinear Optics Quantum optics Simulation Superradiance Squeezing

项目摘要

In this research, firstly we analyzed the dispersion relation and the lifetime of photonic bands, and the frequency and the quality factor of localized defect modes in the pseudo-gap for photonic crystal slabs that can be fabricated on semiconductor substrates. We clarified the dispersion relation and the symmetry of photonic bands originating from plasmons for metallic photonic crystals in which very small group velocity of light is expected to be realized. Secondly we picked up the quadrature-phase squeezing as a representative example of quantum optical phenomena utilizing the second-order nonlinear optical effect. We clarified the enhancement effect due to the small group velocity by means of an approximate solution obtained by the Green function method. We also developed a numerical method to deal with the quantum fluctuation of the electromagnetic field in the linear approximation, and applied it to the photonic crystal slab.In addition, we analyzed the superradiance, which is a cooperative light emission by a coherent polarization of matter, and examined the large Rabi splitting, partial relaxation of the population inversion of the electronic system, and the extraordinary atom-number dependence of the superradiant pulse shape caused by the photonic band gap. On the other hand, in cooperation with Dayton University, we fabricated waveguides made of LiNbO3 by the ion exchange method that has the second-order nonlinear susceptibility. We further fabricated one-and two-dimensional periodic patterns of a photoresist on the waveguide to make weakly modulated photonic crystal slabs, and examined their characteristics. We also synthesized new organic materials with the large second-order nonlinear susceptibility. We published two books from Springer Verlag and Morikita Publishing, in which the major works of the head investigator in the last ten years including the above-mentioned studies were collected.

在本研究中，我们首先分析了可以在半导体衬底上制作的光子晶体薄片的色散关系和光子带寿命，以及伪隙中局域缺陷模的频率和品质因数。我们阐明了金属光子晶体中由等离子体产生的光子带的色散关系和对称性，在金属光子晶体中有望实现很小的群速度。其次，我们选取了利用二阶非线性光学效应的量子光学现象的一个典型例子--正交位相压缩。利用格林函数方法得到的近似解，阐明了由于小群速度而产生的增强效应。我们还发展了一种在线性近似下处理电磁场量子涨落的数值方法，并将其应用于光子晶体平板。此外，我们还分析了超辐射，这是一种由物质的相干偏振产生的合作光发射，并研究了电子系统的大拉比分裂，电子系统布居反转的部分弛豫，以及光子带隙引起的超辐射脉冲形状与原子数的异常关系。另一方面，我们与代顿大学合作，用离子交换法制备了具有二阶非线性极化率的LiNbO_3光波导。我们进一步在波导上制作了一维和二维的光刻胶周期图案，制作了弱调制光子晶片，并测试了它们的特性。我们还合成了具有较大二阶非线性极化率的新型有机材料。我们出版了Springer Verlag和Morikita出版社的两本书，其中收集了首席调查员近十年来的主要作品，包括上述研究。