Results 21 to 30 of about 507,954 (312)

Environment-Assisted Precision Measurement

Physical Review Letters, 2011
We describe a method to enhance the sensitivity of precision measurements that takes advantage of a quantum sensor's environment to amplify its response to weak external perturbations. An individual qubit is used to sense the dynamics of surrounding ancillary qubits, which are in turn affected by the external field to be measured.
Goldstein, G., Cappellaro, P., Maze Ríos, Jerónimo, Hodges, J.S., Jiang, L., Sørensen, A.S., Lukin, M.D.   +6 more
openaire   +6 more sources

Thermal Deformation Suppression Chip Based on Material Symmetry Design for Single Center Supported MEMS Devices

IEEE Access, 2020
Structural thermal deformation is an important factor that affects the performance of MEMS devices. The mismatch of thermal expansion coefficient (CTE) between different materials is a major source.
Bowen Xing, Bin Zhou, Xinxi Zhang, Wenming Zhang, Bo Hou, Qi Wei, Tian Zhang, Rong Zhang   +7 more
doaj   +1 more source

THE PRECISE MEASUREMENT OF HEMOLYSIN [PDF]

Journal of General Physiology, 1927
A method is described for the measurement of hemolysin concentration, which makes possible exact comparison of results obtained at different times and with different specimens of erythrocytes and alexin; and gives precise values with an error not greater than 2 per cent.
openaire   +2 more sources

Beam Scanning and Capture of Micro Laser Communication Terminal Based on MEMS Micromirrors

Micromachines, 2023
With the development of space laser communication and the planned deployment of satellite Internet constellations, there is a growing demand for microminiature laser communication terminals.
Xuan Wang, Junfeng Han, Chen Wang, Meilin Xie, Peng Liu, Yu Cao, Feng Jing, Fan Wang, Yunhao Su, Xiangsheng Meng   +9 more
doaj   +1 more source

Second‐Harmonic Generation in Strained Silicon Metasurfaces

Advanced Photonics Research, 2022
Dielectric metasurfaces supporting Mie resonances can allow significantly boosted and tailored nonlinear light–matter interactions at the nanoscale. However, nonlinear dielectric metasurfaces typically only have odd‐order nonlinearities, unless resorting
Yun Zhao, Wenhe Jia, Xiao-Jie Wang, Yiying Dong, Hong-Hua Fang, Yuanmu Yang, Hong-Bo Sun   +6 more
doaj   +1 more source

Maximizing precision over extended unambiguous range for TOF range imaging systems

, 2010
The maximum unambiguous range for time-of-flight range imaging systems is inversely proportional to the chosen modulation frequency. However, increasing the unambiguous range by decreasing the modulation frequency will generally also degrade the range ...
Payne, Andrew D., Dorrington, Adrian A., Andrew D. Payne, Jongenelen, Adrian P.P., Adrian P. P. Jongenelen, Dale A. Carnegie, Adrian A. Dorrington, Carnegie, Dale A.   +7 more
core   +1 more source

Experimental study on harmonic mode-locking in soliton fiber lasers by bidirectional adjustment of pump power [PDF]

Nanotechnology and Precision Engineering
Harmonic mode-locking (HML) in soliton fiber lasers is crucial for generating high-repetition-rate pulse trains beyond the fundamental cavity frequency, enabling advanced applications in, for example, optical communication and precision sensing. However,
Citian Zhang, Jiarun Zhang, Lieshan Zhang, Shihua Zhang   +3 more
doaj   +1 more source

Evaluation of Ultrasonic Sensor for Precision Liquid Volume Measurement in Narrow Tubes and Pipes

, 2023
The introduction of computer vision and machine learning into agricultural systems has produced significant new opportunities for high precision application of liquid products in both grain and livestock agriculture.
Matthew J. Darr, Benjamin C. Smith, Ryan W. Bergman   +2 more
core   +1 more source

Complex pattern transmission through multimode fiber under diverse light sources

APL Photonics, 2022
Multimode fibers with high information capacity and ultra-thin diameter offer new possibilities for non-invasive endoscopy and remote high-speed secure communication. However, due to their sensitivity, special demands are thus raised on the light sources,
Lele Wang, Tiancheng Qi, Zhoutian Liu, Yuan Meng, Dan Li, Ping Yan, Mali Gong, Qirong Xiao   +7 more
doaj   +1 more source

High-precision gas refractometer by comb-mode-resolved spectral interferometry

Scientific Reports, 2018
High-accuracy knowledge of gas refractivity is typically crucial for optical interferometry, precise optical systems, and calculable pressure standard development.
Lijun Yang, Yan Li, Haoyun Wei
doaj   +1 more source