Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Time and frequency -Domain Interpretation of Phase-lead Control

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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Partial Amorphization of Proton-Conducting Perovskites Triggers Interfacial Water Optimization to Boost Proton Transfer Kinetics for PEM Electrolysis.

Small (Weinheim an der Bergstrasse, Germany)·2026

Same author

Integrated Organic-Inorganic Fertilization Enhances Microbial Stoichiometric Homeostasis but Triggers Seasonal Metabolic Trade-Offs in an Alpine Sandy Ecosystem.

Microorganisms·2026

Same author

Strain-Engineered FeN<sub>4</sub> Sites Accelerate Singlet Oxygen Formation in Fenton-Like Reactions.

Small (Weinheim an der Bergstrasse, Germany)·2026

Same author

Zooplankton Community Stability and Environmental Filtering in a Shallow Eutrophic Lake.

Ecology and evolution·2026

Same author

A Monocyte-Targeted Nanoplatform for Phagocytosis Activation and Ferroptosis Inhibition in Intracerebral Hemorrhage.

Small (Weinheim an der Bergstrasse, Germany)·2026

Same author

IGF2BP2 Overexpression Predicts Poor Prognosis and Correlates with PD-L1 Expression in Intrahepatic Cholangiocarcinoma.

Biomedicines·2026

Same journal

Erratum: Spectroscopy and Ground-State Transfer of Ultracold Bosonic ^{39}K^{133}Cs Molecules [Phys. Rev. Lett. 135, 203401 (2025)].

Physical review letters·2026

Same journal

Erratum: Lifetime of the ^{2}F_{7/2} Level in Yb^{+} for Spontaneous Emission of Electric Octupole Radiation [Phys. Rev. Lett. 127, 213001 (2021)].

Physical review letters·2026

Same journal

Laser-Plasma Based Seeded Free Electron Laser in the High-Gain Regime.

Physical review letters·2026

Same journal

Parent Hamiltonians for Stabilizer Quantum Many-Body Scars.

Physical review letters·2026

Same journal

Properties of Heavy Cosmic Nuclei Phosphorus, Chlorine, Argon, Potassium, and Calcium: Results from the Alpha Magnetic Spectrometer.

Physical review letters·2026

Same journal

Role of Spin-Isospin Symmetries in Nuclear β-Decays.

Physical review letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Mar 7, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Phase Matching Using the Linear Electro-Optic Effect.

Zijian Cui^1,2, Dean Liu^1,3, Jie Miao¹

¹Key Laboratory of High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.

Physical Review Letters

|February 11, 2017

Summary

This summary is machine-generated.

Voltage-tuning phase matching uses electric fields to control birefringence for efficient optical-frequency conversion. This new method achieves quasiperfect phase matching in nonlinear optical materials.

More Related Videos

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Related Experiment Videos

Last Updated: Mar 7, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Area of Science:

Nonlinear Optics
Materials Science

Background:

Efficient optical-frequency conversion relies on precise phase matching.
Existing methods for phase matching in homogeneous crystals are limited.
Controlling birefringence is key to overcoming these limitations.

Purpose of the Study:

To introduce and demonstrate a novel method for achieving quasiperfect phase matching using voltage-controlled birefringence.
To explore the application of the linear electro-optic effect for phase matching in nonlinear optical processes.

Main Methods:

Theoretical analysis of "voltage-tuning phase matching" based on the linear electro-optic effect.
Experimental demonstration using fourth-harmonic generation in a partially deuterated KH2PO4 crystal.
Applying an external electric field to tune the refractive index and match wave vectors.

Main Results:

Quasiperfect phase matching was systematically achieved over a ±2°C temperature range.
The voltage-tuning method demonstrated effectiveness in overcoming traditional birefringence limitations.
Successful simultaneous application of the linear electro-optic effect and fourth-harmonic generation.

Conclusions:

Voltage-tuning phase matching offers a new, controllable approach to high-efficiency optical-frequency conversion.
This technique enhances functionalities of conventional and low-birefringence nonlinear materials.
The method holds significant potential for advancing nonlinear optics and related applications.