【摘 要】
：
A new unsaturated wind-chime model is proposed for calculating the formation time of the diffraction rings induced by spatial self-phase modulation (SSPM) in molybdenum disulfide suspension. To optimize the traditional wind-chime model, the concentration
【机 构】
：
HunanKeyLaboratoryofNanophotonicsandDevices,SchoolofPhysicsandElectronics,CentralSouthUniversity,Cha
【出 处】
：
ChineseOpticsLetters
论文部分内容阅读
A new unsaturated wind-chime model is proposed for calculating the formation time of the diffraction rings induced by spatial self-phase modulation (SSPM) in molybdenum disulfide suspension. To optimize the traditional wind-chime model, the concentration variable of 2D materials was introduced. The results of the unsaturated wind-chime model match quite well with the SSPM experimental results of molybdenum disulfide. Based on this model, the shortest formation time of diffraction rings and their corresponding concentration and light intensity can be predicted using limited data. Theoretically, by increasing the viscosity coefficient of the solution, the response time of the diffraction ring, to reach the maximum value, can be significantly reduced. It has advanced significance in shortening the response time of photonic diodes.
其他文献
采用了一个梯形四能级原子系统，在多模光场的作用下利用量子相干技术使其实现介质的左手效应，使介质具备左手材料特性。在相互作用表象下，利用密度矩阵方程并结合相关条件下的有关公式进行理论计算，数值模拟结果显示，在合适的参量条件下，介质的相对介电常量和相对磁导率可以同时出现负值，产生了左手效应，相应的介质转化为左手材料。通过讨论在左手效应成立的条件下介质对光场的吸收和增益问题，结果表明，在弱探测场条件下，利用电磁诱导的方法也可以实现介质的左手效应。
High-efficiency superconducting nanowire single-photon detectors (SNSPDs), which have numerous applications in quantum information systems, function by using the optical cavity and the ultrasensitive photon response of their ultra-thin superconducting nan
提出了一种基于非参数特征提取的早期森林火灾烟雾检测方法。采用双背景模型进行运动区域检测,得到可疑烟雾区域。再利用早期火灾烟雾颜色特征和运动特性对提取的可疑运动区域进行颜色判别,对增长区域以及上升区域进行检测,排除部分干扰目标。根据提出的非参数特征提取法,计算并科学地选取可疑区域的特征量,将其输入训练好的支持向量机(SVM)进行烟雾判别。对多段视频进行测试表明,该方法能适用于复杂多变的野外环境,排除
The interaction between an atomic beam of two-level atoms and a standing wave light field has been studied by the exact solution of a time-dependent quantum system developed recently. When the initial atomic state is choosen to be ground, we find that wit
Transmission and reflection of an electromagnetic pulse through a dielectric slab doped with the quantum dot molecules are investigated. It is shown that the transmission and reflection coefficients depend on the inter-dot tunneling effect and can be simp
偏振小孔干涉仪是一种可实用的新型干涉仪。它综合小孔衍射技术、偏振技术和共光路设计为一体,具有条纹对比度可调、抗干扰能力强和非接触检验等优点,可广泛用于各种光学元件及其胶合层的检验。目测精度达1/10λ,计算机条纹处理精度可调。
Novel phenomena and methods related to dielectronic capture and dielectronic recombination are studied for non-local thermodynamic equilibrium (LTE) plasmas and for applications to non-LTE ionization balance. It is demonstrated that multichannel autoioniz
掌握湍流基本规律及其廓线结构分布，是大气光学理论与应用研究中的关键问题之一。利用随机并行梯度下降算法对大气湍流廓线统计模式拟合进行了研究。在已获合肥地区整层大气折射率结构常数C2N平均廓线的前提下，以广义Hufnagel-Valley湍流模型为基础，拟合获得了该地区不同时间与不同季节的湍流模式廓线。研究发现，该方法获得的该地区湍流模式廓线在整层大气高度上均能很好地同实测平均廓线相符合，且两者所表征的整层湍流特征参量也能保持非常好的一致性。对寻求基于Hufnagel-Valley模型的通用湍流廓线模式拟合方
介绍了基于波长调制的离轴积分腔输出光谱(WM-OA-ICOS)技术的实验装置。使用1.392 μm的分布反馈式(DFB)激光器作为光源,以反射率为99.8%、相距60 cm的两片镜片组成的谐振腔为气体吸收池,选择7185.87 cm
-1的CH4吸收谱线,对不同浓度的CH4气体进行探测。通过优化压力、调制频率、相位和振幅等参数,并结合Allan方差,得出系统的稳定时间为203 s。实验选取100 s的测量时间,得出CH