A large time delay of light via two dimensional atom localization in a coupled cavity waveguide

2019 ◽  
Vol 448 ◽  
pp. 55-59
Author(s):  
Ronggang Liu ◽  
Tong Liu ◽  
Yujie Li
Keyword(s):  
Time Delay ◽  
Large Time ◽  
Two Dimensional ◽  
Coupled Cavity ◽  
Atom Localization ◽  
Coupled Cavity Waveguide

scholarly journals Two-dimensional atom localization based on coherent field controlling in a five-level M-type atomic system

2017 ◽  
Vol 25 (25) ◽  
pp. 31678 ◽  
Author(s):  
Xiangqian Jiang ◽  
Jinjiang Li ◽  
Xiudong Sun
Keyword(s):  
Atomic System ◽  
Two Dimensional ◽  
Coherent Field ◽  
Atom Localization

scholarly journals Linear time-delay circuit and stabilizing controller

2021 ◽  
Vol 2091 (1) ◽  
pp. 012005
Author(s):  
Yuhao Cong ◽  
Yong Zhang ◽  
Guang-Da Hu
Keyword(s):  
Time Delay ◽  
Large Time ◽  
Linear Time ◽  
Least Square Method ◽  
Optimization Method ◽  
Delay System ◽  
Least Square ◽  
Single Chip ◽  
Stabilizing Controller ◽  
Delay Circuit

Abstract This paper is concerned with a linear time-delay circuit and its feedback control. We use electronic components such as resistors and capacitors to realize a linear time-delay system. The time-delays are generated by operational amplifiers and single-chip microcomputers. Based on the actual data measured by the oscilloscope, the parameters of the system are estimated using the least square method. Then a comparison study between the waveform image measured by the oscilloscope and the numerical simulation obtained by MATLAB verifies the effectiveness of the parameters estimations of the circuit system. Furthermore, the circuit system is unstable with a large time-delay, a feedback controller is designed to stabilize the circuit system using the optimization method in the literature. Finally, the experimental results in the linear time-delay circuit show the effectiveness of the optimization method.

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