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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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Determination of the phase of terahertz few-cycle laser pulses

Chuan-Cun Shu1, Kai-Jun Yuan, Wen-Hui Hu

  • 1Department of Physics, Dalian University of Technology, Dalian 116024, China.

Optics Letters
|October 20, 2009
PubMed

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Time and frequency -Domain Interpretation of Phase-lead Control01:24

Time and frequency -Domain Interpretation of Phase-lead Control

Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...