Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Phase-lead and Phase-lag Controllers01:22

Phase-lead and Phase-lag Controllers

583
Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass...
583
Geometric Mean01:15

Geometric Mean

4.1K
The mean is a measure of the central tendency of a data set. In some data sets, the data is inherently multiplicative, and the arithmetic mean is not useful. For example, the human population multiplies with time, and so does the credit amount of financial investment, as the interest compounds over successive time intervals.
In cases of multiplicative data, the geometric mean is used for statistical analysis. First, the product of all the elements is taken. Then, if there are n elements in the...
4.1K
Nonlinear Pharmacokinetics: Causes of Nonlinearity01:22

Nonlinear Pharmacokinetics: Causes of Nonlinearity

746
Nonlinearity in drug pharmacokinetics is caused by various factors influencing how a drug is absorbed, distributed, metabolized, and excreted. Understanding these nonlinear processes is crucial for predicting drug behavior in the body and optimizing drug dosing regimens.
Nonlinear drug absorption can occur when the process is rate-limited by solubility, carrier-mediated transport systems, or saturation of the presystemic gut wall or hepatic metabolism. For instance, high doses of riboflavin...
746
Geometric Sequences01:30

Geometric Sequences

294
In systems where values diminish by a constant proportion at each stage, the resulting sequence follows a geometric structure. Each new value in the sequence is obtained by applying a fixed multiplier to the preceding term. This regular, proportional decline type is often used to represent processes involving gradual loss, such as energy dissipation or reduction in amplitude over time.When analyzing the total effect of such a process across unlimited iterations, the series of values is referred...
294
Work Done in an Adiabatic Process01:20

Work Done in an Adiabatic Process

4.3K
Consider the adiabatic compression of an ideal gas in the cylinder of an automobile diesel engine. The gasoline vapor is injected into the cylinder of an automobile engine when the piston is in its expanded position. The temperature, pressure, and volume of the resulting gas-air mixture are 20 °C, 1.00 x 105 N/m2, and 240 cm3 , respectively. The mixture is then compressed adiabatically to a volume of 40 cm3. Note that, in the actual operation of an automobile engine, the compression is not...
4.3K
Time and frequency -Domain Interpretation of Phase-lead Control01:24

Time and frequency -Domain Interpretation of Phase-lead Control

479
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...
479

You might also read

Related Articles

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

Sort by
Same author

Compact polarization-entangled source near 810 nm and its application to nonlocal retardance measurement.

Optics letters·2026
Same author

Toward quantum sensing of electron beams using solid-state spins.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

On-Chip Laser-Driven Free-Electron Spin Polarizer.

Physical review letters·2026
Same author

Single plane spatial mode sorter.

Optics express·2026
Same author

Optically programable quasi phase matching in four-wave mixing.

Nature communications·2025
Same author

Pseudo-spin light circuits in nonlinear photonic crystals.

Nature communications·2025
Same journal

Denoising algorithm of Φ-OTDR systems based on adaptive fractional wavelet transform denoising.

Optics express·2026
Same journal

Millisecond photon-to-photon latency and high-speed volumetric projection system for optogenetics.

Optics express·2026
Same journal

Polarization-encoded coaxial structured light for high-precision 3D surface profilometry.

Optics express·2026
Same journal

Discrete freeform optical design based on collaborative optimization of point cloud and local normals.

Optics express·2026
Same journal

Ultrafast ghost imaging with 25 GHz speckle switching and wavelength-division multiplexing.

Optics express·2026
Same journal

Atomic vapor cells fabricated by femtosecond laser welding of standard-optical-quality glass.

Optics express·2026
See all related articles

Related Experiment Video

Updated: Feb 14, 2026

Biomolecular Imaging of Cellular Uptake of Nanoparticles using Multimodal Nonlinear Optical Microscopy
07:13

Biomolecular Imaging of Cellular Uptake of Nanoparticles using Multimodal Nonlinear Optical Microscopy

Published on: May 16, 2022

2.4K

Fully controllable adiabatic geometric phase in nonlinear optics.

Aviv Karnieli, Ady Arie

    Optics Express
    |February 25, 2018
    PubMed
    Summary
    This summary is machine-generated.

    Researchers developed a novel method to achieve adiabatic geometric phase for light using sum-frequency generation. This technique offers a new pathway for robust geometric wavefront shaping in nonlinear optics.

    More Related Videos

    Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
    05:57

    Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

    Published on: April 1, 2020

    8.6K
    Generation and Coherent Control of Pulsed Quantum Frequency Combs
    06:42

    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

    9.7K

    Related Experiment Videos

    Last Updated: Feb 14, 2026

    Biomolecular Imaging of Cellular Uptake of Nanoparticles using Multimodal Nonlinear Optical Microscopy
    07:13

    Biomolecular Imaging of Cellular Uptake of Nanoparticles using Multimodal Nonlinear Optical Microscopy

    Published on: May 16, 2022

    2.4K
    Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
    05:57

    Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

    Published on: April 1, 2020

    8.6K
    Generation and Coherent Control of Pulsed Quantum Frequency Combs
    06:42

    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

    9.7K

    Area of Science:

    • Nonlinear Optics
    • Quantum Optics

    Background:

    • Geometric phase in optics is crucial for applications like optical vortices and polarization control.
    • Adiabatic processes are key for robust phase accumulation in quantum systems.

    Purpose of the Study:

    • To propose and analyze a new method for obtaining adiabatic geometric phase for light.
    • To explore the potential of sum-frequency generation (SFG) for realizing geometric phase optics.

    Main Methods:

    • The study models light states using complex amplitudes at different frequencies, coupled by second-order nonlinearity.
    • System dynamics are shown to be analogous to a spin-1/2 particle in a magnetic field, allowing adiabatic rotation on the Bloch sphere.
    • Two adiabatic rotation schemes involving quasi-phase-matching poling parameter modulation are discussed.

    Main Results:

    • The geometric phase is manifested as a pure phase factor when the input light is an eigenstate of the equivalent magnetic field.
    • One scheme shows geometric phase sensitivity to pump intensity variations due to Bloch sphere deformation.
    • A second scheme demonstrates potential for nonlinear-optics-based geometric phase plates.

    Conclusions:

    • The proposed SFG method provides a novel route to adiabatic geometric phase for light.
    • Non-closed adiabatic trajectories are investigated for robust and broadband geometric wavefront shaping.
    • This work opens avenues for advanced optical elements and wavefront control using nonlinear processes.