【摘 要】
：
We demonstrate a narrowband optical filter which operates on the 52S1/2 to 52P3/2 transition at 780 nm in rubidium vapor based on optical-pumping-induced dichroism combined with Faraday anomalous dispersion effects. Its peak transmission is 18.4(2)% at th
【机 构】
：
StateKeyLaboratoryofAdvancedOpticalCommunicationSystemandNetwork,SchoolofElectronicsEngineeringandCo
【出 处】
：
ChineseOpticsLetters
论文部分内容阅读
We demonstrate a narrowband optical filter which operates on the 52S1/2 to 52P3/2 transition at 780 nm in rubidium vapor based on optical-pumping-induced dichroism combined with Faraday anomalous dispersion effects. Its peak transmission is 18.4(2)% at the 52S1/2, F = 2 to 52P3/2, F ' = 1, 3 crossover transition, whereas at the 52S1/2, F = 2 to 52P3/2, F ' = 2, 3 crossover transition the transmission is 18.6(2)%. Both transitions have a bandwidth (full-width at half-maximum of peak transmission) as narrow as 24.5(8) MHz, which is remarkably improved compared with the narrowest bandwidth as we know. This technique can also be applied to other alkali atoms.
其他文献
基于LiIO3晶体的Sellmeier方程,计算了晶体中1.0795 μm和1.3414 μm双波长Nd:YAP激光和频的相位匹配条件。计算结果与实验结果相当一致。并得到连续和脉冲的0.5981 μm和频相干辐射。
相干光学操控半导体量子点(SQDs)激子态在量子信息、量子计算中具有很重要的应用。通过对影响量子点(QDs)拉比振荡因素的分析,可获得导致量子点体系退相干的物理机制,这为全光操控半导体量子点体系提供了理论依据。线偏振脉冲激光激发自组织InGaAs QDs,运用系统粒子数主方程并结合光学布洛赫矢量推导了单脉冲激发下V型三能级系统激子动力学方程,利用此方程讨论了初始状态及纯失相对拉比振荡的影响。研究表明,可以通过改变系统初态条件和激发场的偏振角对该体系激子拉比振荡的振幅和频率进行调控,可以用纯失相强度相关衰减
讨论了正交相位跃变光栅的光学特性,以及由它经圆孔或十字形狭缝所获得傅氏变换的希尔伯特变换图像的特性. 更多还原
The numerical moire method with sensitivity as high as 0.03 nm has been presented. A quantitative displacement and strain analysis program has been proposed by using this method. It is applied to an edge dislocation and a stacking fault in aluminum. The m
A microcavity laser based on evanescent-wave-coupled gain is formed using a silica fiber with a diameter of 125 μm in a rhodamine 6G ethanol solution. When the fiber is sticking to the cuvette wall by capillary force, using the excitation of a 532 nm nano
A 4:1 (volume ratio) methanol–ethanol (ME) mixture and silicone oil are two of the most widely used liquid pressure-transmitting media (PTM) in high-pressure studies. Their hydrostatic limits have been extensively studied using various methods; however, t
基于二维非定域非线性介质中的库默模型，研究了库默孤子的传输特性。分析发现，存在一群二维库默高斯孤子簇，如环形孤子、项链孤子和半月形孤子。数值模拟表明高斯孤子和环形孤子是稳定的，其他孤子是不稳定的；并且非线性调制系数、调制深度等参数对孤子传播特性有着重要的影响，随着它们的增加，孤子的稳定性增加。
The equivalent four-pole network model is used to simulate one-dimension longitudinal acoustic resonator with different buffer diameters and lengths, aiming to reach a theoretic model which is able to estimate the optimal buffer geometry. In experiments,
设计并制作了一种硅雪崩光电二极管(APD)四象限探测器芯片, 基于该芯片研制了一款新型高灵敏度制冷型APD四象限探测器组件; 创新性地将探测器芯片、热电制冷器、前置放大电路和增益控制模块集成在带光窗的金属外壳中; 该组件制冷加热速度快, 在-45~70℃环境温度内可使器件恒定工作在10±2℃。测试结果表明, 相对于传统的PIN四象限探测器组件, 由于APD探测器本身能产生雪崩增益, 该组件的灵敏度提高了近两个数量级, 作用距离更远。
应用光电阴极探测灵敏度为0.5 cps/mm2的超高灵敏度的光电成像系统,获得了绿豆芽和活体昆明鼠的超微弱生物发光图像,并用统计理论研究了极弱光强条件下光子图像的信号检验问题。文中在信号和噪声均为泊松分布的条件下,分析了从光子噪声中检验是否有信号的判据以及影响到检验的5个因素对检验结论的影响。以此判据成功地检验到实验获得的昆明鼠发光光子图像中的信号。