Cold trapped ions can be excellent sensors for ultra-precision detection of physical quantities,which strongly depends on the measurement situation at hand.The stylus ion trap,formed by two concentric cylinders over a...Cold trapped ions can be excellent sensors for ultra-precision detection of physical quantities,which strongly depends on the measurement situation at hand.The stylus ion trap,formed by two concentric cylinders over a ground plane,holds the promise of relatively simple structure and larger solid angle for optical access and fluorescence collection in comparison with the conventional ion traps.Here we report our fabrication and characterization of the first stylus ion trap constructed in China,aiming for studying quantum optics and sensing weak electric fields in the future.We have observed the stable confinement of the ion in the trapping potential for more than two hours and measured the heating rate of the trap to be dε/dt=7.10±0.13 meV/s by the Doppler recooling method.Our work starts a way to building practical quantum sensors with high efficiency of optical collection and with ultimate goal for contributing to future quantum information technology.展开更多
From simulated profiles and measured profiles, analysis is made of the effect of the stylus radius on the measurement of surface profile. Compensation of stylus geometry makes a better approximation of true surface pr...From simulated profiles and measured profiles, analysis is made of the effect of the stylus radius on the measurement of surface profile. Compensation of stylus geometry makes a better approximation of true surface profile possible and its effectiveness is demonstrated by comparing the results obtained with measured profiles.展开更多
通过近一年的使用体会．Epson Stylus PRO 10600的快捷、稳定、可靠是令人信服的，据实测．若按图片质量输出．采用72dpi的打印像素每小时可打印5平方米以上。特别让人称道的是，爱普生机器号称75年的色彩保存期把数码大幅面、多介质输...通过近一年的使用体会．Epson Stylus PRO 10600的快捷、稳定、可靠是令人信服的，据实测．若按图片质量输出．采用72dpi的打印像素每小时可打印5平方米以上。特别让人称道的是，爱普生机器号称75年的色彩保存期把数码大幅面、多介质输出的独特优势，从林林种种的外设输出设备中凸现了出来，呈现出鹤立鸡群之势。展开更多
基金Project supported by the Special Project for Research and Development in Key Areas of Guangdong Province,China (Grant No.2020B0303300001)the National Natural Science Foundation of China (Grant Nos.U21A20434,12074346,12074390,11835011,11804375,and 11804308)+2 种基金the Fund from the Key Laboratory of Guangzhou for Quantum Precision Measurement (Grant No.202201000010)the Science and Technology Projects in Guangzhou (Grant No.202201011727)the Nansha Senior Leading Talent Team Technology Project (Grant No.2021CXTD02)。
文摘Cold trapped ions can be excellent sensors for ultra-precision detection of physical quantities,which strongly depends on the measurement situation at hand.The stylus ion trap,formed by two concentric cylinders over a ground plane,holds the promise of relatively simple structure and larger solid angle for optical access and fluorescence collection in comparison with the conventional ion traps.Here we report our fabrication and characterization of the first stylus ion trap constructed in China,aiming for studying quantum optics and sensing weak electric fields in the future.We have observed the stable confinement of the ion in the trapping potential for more than two hours and measured the heating rate of the trap to be dε/dt=7.10±0.13 meV/s by the Doppler recooling method.Our work starts a way to building practical quantum sensors with high efficiency of optical collection and with ultimate goal for contributing to future quantum information technology.
文摘From simulated profiles and measured profiles, analysis is made of the effect of the stylus radius on the measurement of surface profile. Compensation of stylus geometry makes a better approximation of true surface profile possible and its effectiveness is demonstrated by comparing the results obtained with measured profiles.
文摘通过近一年的使用体会．Epson Stylus PRO 10600的快捷、稳定、可靠是令人信服的，据实测．若按图片质量输出．采用72dpi的打印像素每小时可打印5平方米以上。特别让人称道的是，爱普生机器号称75年的色彩保存期把数码大幅面、多介质输出的独特优势，从林林种种的外设输出设备中凸现了出来，呈现出鹤立鸡群之势。
