期刊文献+
共找到5篇文章
< 1 >
每页显示 20 50 100
高速光测装置的价值函数
1
作者 韩心志 《高速摄影与光子学》 CSCD 1990年第3期258-263,共6页
本文提出一个价值函数,作为高速光测装置的评价准则。此函数建立在装置可能获得的信息容量和质量的基础上,例如,数据锐度和装置的多功能性等。
关键词 光测装置 价值函数 高速 全息摄影
全文增补中
试验设备对电缆燃烧烟密度测试结果的影响 被引量:4
2
作者 姚春 徐刚 《特种橡胶制品》 北大核心 2000年第5期35-38,共4页
介绍了烟密度试验设备的各个组件对电缆燃烧烟密度测定的影响以及减少由于试验设备带来的各种误差的方法。
关键词 试验仪器 烟密度 光测装置 电缆 燃烧 橡胶
下载PDF
Liquid Drop Measuring Device for Analyzing Liquid Properties 被引量:1
3
作者 陈海秀 张国雄 +1 位作者 裘祖荣 冯国红 《Transactions of Tianjin University》 EI CAS 2006年第2期121-124,共4页
Based on the correlation between certain properties of liquid and the properties of the corresponding liquid drop formed under given conditions, a liquid drop measuring device is utilized to monitor the drop formation... Based on the correlation between certain properties of liquid and the properties of the corresponding liquid drop formed under given conditions, a liquid drop measuring device is utilized to monitor the drop formation process of the liquid sample with photoelectric measuring methods. The mechanical and optical characteristic of the liquid is explored with the optical fibers from the internal of the liquid drop during its formation. The drop head capacitor is utilized to monitor the growth process of the liquid drop to gain the drop volume information related to the physical property of liquid. The unique liquid drop trace containing the integrated properties of liquid is generated, and it is proved by experiment that for different liquids their liquid drop traces are different. The analysis on liquid properties and discrimination between different liquids can be proceeded with the liquid drop trace obtained by the liquid drop measuring device. 展开更多
关键词 liquid detection liquid drop optical characteristics drop volume
下载PDF
Optical Noninvasive Diagnostic of Semiconductor Devices by Using Laser Beam Probe
4
作者 JIANG Jianping ZHOU Minkang +2 位作者 SUN Chengcheng HE Shufang XE Zhizhi(Tsinghua University, Beijing 100084, CHN) 《Semiconductor Photonics and Technology》 CAS 1996年第1期66-71,共6页
The optical noninvasive diagnostic of characteristic of silicon semiconductor devices by using a InGaAsP/InP semiconductor laser as an optical probe is reported. The principle of experimental method is based on the de... The optical noninvasive diagnostic of characteristic of silicon semiconductor devices by using a InGaAsP/InP semiconductor laser as an optical probe is reported. The principle of experimental method is based on the dependence of the optical refractive index on the carrier charge density in the active region of devices and detection of variation of refractive index by two laser beam interferometric techniques. 展开更多
关键词 Optical Diagnostic Optical Probe Optics Interaction Optical Systems
下载PDF
Improving Continuous-Variable Measurement-Device-Independent Multipartite Quantum Communication with Optical Amplifiers 被引量:1
5
作者 郭迎 赵微 +3 位作者 李飞 黄端 廖骎 谢才浪 《Communications in Theoretical Physics》 SCIE CAS CSCD 2017年第8期191-200,共10页
The developing tendency of continuous-variable (CV) measurement-device-independent (MDI) quantum cryptography is to cope with the practical issue of implementing sealable quantum networks. Up to now, most theoreti... The developing tendency of continuous-variable (CV) measurement-device-independent (MDI) quantum cryptography is to cope with the practical issue of implementing sealable quantum networks. Up to now, most theoretical and experimental researches on CV-MDI QKD are focused on two-party protocols. However, we suggest a CV-MDI multipartite quantum secret sharing (QSS) protocol use the EPR states coupled with optical amplifiers. More remarkable, QSS is the real application in multipartite CV-MDI QKD, in other words, is the concrete implementation method of multipartite CV-MDI QKD. It can implement a practical quantum network scheme, under which the legal participants create the secret correlations by using EPR states connecting to an untrusted relay via insecure links and applying the multi-entangled Greenberger-Horne-Zeilinger (GHZ) state analysis at relay station. Even if there is a possibility that the relay may be completely tampered, the legal participants are still able to extract a secret key from network communication. The numerical simulation indicates that the quantum network communication can be achieved in an asymmetric scenario, fulfilling the demands of a practical quantum network. Additionally, we illustrate that the use of optical amplifiers can compensate the partial inherent imperfections of detectors and increase the transmission distance of the CV-MDI quantum system. 展开更多
关键词 continuous-variable quantum network Greenberger Horne Zeilinger state optical amplifier
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部