利用双色光子存储方法测量偶氮分子甲基橙和乙基橙的亚稳态寿命

来源 :光学学报 | 被引量 : 0次 | 上传用户:tianwaiyun6
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
提出了用双色光子存储来测量寿命的新方法:逐渐延长关闭预激发光与打开写入光束的时间间隔,通过分析衍射信号的变化得到相关能级的寿命。用此方法测得偶氮分子甲基橙和乙基橙的亚稳态寿命分别为4 s和2.7 s。
其他文献
呼吸频率及呼吸模式检测可用于医疗诊断以及人体健康评估。传统的医学检测器件体积大、能耗高、使用不便捷。针对高性能、低成本、便携式电子产品的迫切需求, 本工作利用氧化石墨烯材料自发极化后对湿度敏感的特性, 通过喷墨印刷方法制备了一种可以实现自供能的平面型湿度传感器。所制备的传感器对湿度响应呈现为线性关系, 并且具有优异的灵敏度、快速响应和恢复特性、多次循环稳定性和长期老化稳定性等特性。基于该传感器可以实现对于人体呼吸频率和呼吸模式等的检测。制备的湿度传感器具有制作简单、成本低、不易受人体行动及外界环境干扰等优
Nitric oxide (NO) and nitric oxide synthase (NOS) have an important role in pain signaling transmission in animal models. Low-level laser therapy (LLLT) is known to have an analgesic effect, but the mechanism is unclear. The aim of the study is to investi
期刊
In this work two different fluorochromes (Alexa 594 and Alexa 680) are conjugated to the same monoclonal antibody (Cetuximab) for obtaining a characteristic M-shaped dual-peak spectrum. Dual-labeling of Cetuximab by mixing both fluorochromes before the co
An all-fiber regenerative amplifier at 1053 nm is demonstrated. The input signal pulse energy is 75 pJ in a 3.5-ns pulse at a 1-Hz repetition rate. At a low level ofinput pump power of 110 mW, the saturated output energy is 120 nJ with fluctuation less th
We introduce a novel network-coding scheme that can be implemented in all-optical multicast networks. A simple and successful module based on the all-optical XOR gate is designed to realize the network coding scheme. The module is a key hardware component
比较介绍了相机用传统CCD和超级CCD SR的原理, 该超级CCD SR由面积较大、感光度高的“S像素”和为拓宽动态范围而特设的小面积“R像素”组成。实验以基于超级CCD SR的富士F100fd为信号采集器件, 对圆孔的夫琅禾费衍射图像进行采集, 最终的图像能够保证暗处正常表现的情况下噪声控制理想, 同时高亮度的部分没有溢出。实验数据表明, 与普通CCD相比动态范围可拓宽到约4倍, 验证了器件设计的合理性和有效性。
为了实时得到低维材料的应变,提出了一种基于数字图像跟踪的低维材料实时应变测量方法。首先,将试件上制作的标志点或试件表面适当的特征点作为跟踪目标,采用改进的适于跟踪测量的图像相关公式,以及根据低维材料变形特点选取相应的匹配模板和搜索区域,实现了实时测量应变所需的两点跟踪;利用双线性插值算法将目标定位在0.01 pixel上的位置,提高了该方法的测量精度。然后分级施加荷载,不仅实时跟踪到目标,而且得到低维材料在相应载荷下的实时应变值,为研究低维材料动态力学特性提供了一种实验方法。通过实验,验证了数字图像跟踪技
Long-period gratings (LPGs) are fabricated in a photonic crystal fiber (PCF) using the symmetric point-by-point C
In this paper, a temperature sensor based on the splicing of a core offset multi-mode fiber with two single mode fibers is proposed and demonstrated experimentally. The temperature sensing principle is analyzed and related experiment is performed. By cont
期刊
Due to its ability of optical sectioning and low phototoxicity,
期刊