Nonlocal Theory of Linear and Nonlinear Optical Responses

线性和非线性光学响应的​​非局部理论

• 批准号: 04640368
• 负责人: CHO Kikuo
• 金额: $ 1.28万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04640368/
• 关键词: Nonlocal response; Radiative correction; Size dependence; photon STM; Optical Stark effect; Wave number conservation rule; Mossbauer resonant diffraction; SHG; 非局所応答理論; 共鳴光学応答; 半導体薄膜; 半導体微粒子; ポンプ・プローブ分光; サイズ変化; 近接電磁場; メスバウアー共鳴回折; 超微粒子; 微粒

Applying the nonlocal response theory developed by us, we have studied the following problems with the results described respectively. [1] Optical response of the assemblies of semiconductor microspheres : Resonant response spectrum was studied as a function of particle number, the way of their arrangements, size, and geometrical configuration. Radiative correction is explicitly included. The same analytical expression of radiative width as in QED is obtained for a single sphere and 1D and 2D infinite lattices. [2] Study of photon STM : By extending the results of [1], we have calculated the near field intensity map of a resonantly irradiated sample and the signal intensity in transmission and reflection geometries. The effect of configurational resonance is predicted, and the breakdown of electric dipole selection rule in reflection mode has been demonstrated. [3] Optical Stark effect of excitons and biexcitons in a slab : A consistent description of nonlinear spectra has been given for the size dependence in the region of 100 A-10000 A thickness. The development of wave number section rule is clearly shown. The calculated spectra show optical Stark shift, resonant broadening and two photon absorption simultaneously. [4] Formulation of Mossbauer diffraction : A nonlocal formulation has been given for a stack of 2D atomic layrs, and the condition of the enhancement of radiative width is studied. [5] SHG from the 2D electronic bands at insulator/semiconductor interface : A nonlocal formulation of resonant SHG due to atomically thin 2D layr has been given without employing the doubtful argument of boundary conditions. The use of 2D periodicity and the long wavelength approximation for the direction of thickness leads to a simple equation to be solved.

应用我们发展的非局部响应理论，我们研究了下列问题，分别给出了结果。[1]半导体微球组装体的光学响应：研究了半导体微球组装体的共振响应谱与微球数量、排列方式、尺寸和几何构型的关系。辐射校正被明确地包括在内。对单球、一维和二维无限晶格，得到了与QED相同的辐射宽度解析表达式。[2]光子STM的研究：本文推广了文献[1]的结果，计算了共振辐照样品的近场强度分布图以及透射和反射几何中的信号强度。预测了组态共振的影响，并论证了反射模中电偶极子选择规则的失效。[3]平板中激子和双激子的光学斯塔克效应：在100 -10000范围内，对非线性谱的尺寸依赖性给出了一致的描述。波数剖面规则的发展也得到了清晰的展示。计算的光谱同时显示了光学斯塔克位移、共振展宽和双光子吸收。[4]穆斯堡尔衍射公式：给出了二维原子叠层的非定域公式，并研究了辐射宽度增强的条件。[5]绝缘体/半导体界面二维电子带的二次谐波：在不考虑边界条件的情况下，给出了二维原子层共振二次谐波的非定域公式。使用2D周期性和厚度方向的长波长近似导致要求解的简单方程。

项目成果

Z.K.Tang: "Optical selection rule and oscillator strength of confined exciton system in CuC1 thin films" Phys.Rev.Letters. 71. 1431-1434 (1993)

Z.K.Tang：“CuC1薄膜中受限激子系统的光学选择规则和振荡器强度”Phys.Rev.Letters。

H.Ishihara: ""Nonlocal theory of the third order nonlinear optical response of confined excitons"" Phys.Rev.B48. 7960-7974 (1993)

H.Ishihara：“受限激子三阶非线性光学响应的​​非局域理论”Phys.Rev.B48。

K.Cho: "Effect of selective pumping of polaritons on the optical spectra of CuCl:Result of nonlocal response theory" Proc.Int.Conf.on Excitonic Processes in Condensed Matter,Darwin,1994(The International Society of Optical Engineering). (in print). (1995)

K.Cho：“选择性泵浦极化子对 CuCl 光谱的影响：非局域响应理论的结果”Proc.Int.Conf.on Exciton Processes in Condensed Matter，达尔文，1994（国际光学工程学会）。

Y.Ohfuti: "Spontaneous Emission Rate of 0 to 3D Systems by Nonlocal Formulation" J.Appl.Phys.Series. 9. 197-200 (1993)

Y.Ohfuti：“通过非局域公式计算 0 到 3D 系统的自发发射率”J.Appl.Phys.Series。

H.Ishihara: "Nonlocal theory of the third order nonlinear optical response of confined excitons" Phys.Rev.B. 48. 7960-7974 (1993)

H.Ishihara：“受限激子三阶非线性光学响应的​​非局域理论”Phys.Rev.B。