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Related Concept Videos

Group Polarization01:01

Group Polarization

Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
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The dipole moment of a bond is the product of the partial charge on either atom and the distance between them. Dipole moments influence the efficiency of IR absorption and the peak intensity. When a bond with a dipole moment is placed in an electric field, the direction of the field determines if the bond is compressed or stretched. Electromagnetic radiation consists of an electric field component that rapidly reverses direction. It follows that polar bonds are alternately stretched and...
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Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...
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Intensity Of Electromagnetic Waves

The energy transport per unit area per unit time, or the Poynting vector, gives the energy flux of an electromagnetic wave at any specific time. For a plane electromagnetic wave with E0 and B0 as the peak electric and magnetic fields and traveling along the x-axis, the time-varying energy flux can be given by the following equation:
Induced Electric Dipoles01:28

Induced Electric Dipoles

A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...

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Related Experiment Video

Updated: Jun 20, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Soliton intensity-dependent polarization rotation.

M N Islam, C E Soccolich, J P Gordon

    Optics Letters
    |September 18, 2009
    PubMed
    Summary

    Fundamental optical solitons maintain their shape during intensity-dependent polarization rotation due to unified rotation. This principle enables a fiber-based optical limiter that preserves pulse shape, though pulse width may vary.

    Area of Science:

    • Nonlinear optics
    • Fiber optics
    • Optical physics

    Background:

    • Intensity-dependent polarization rotation can cause pulse distortions.
    • Optical solitons are stable light pulses that maintain their shape.
    • Nonlinear effects in optical fibers are crucial for pulse manipulation.

    Purpose of the Study:

    • To investigate pulse shape distortions in fundamental solitons due to nonlinear polarization rotation.
    • To demonstrate a novel optical limiter utilizing nonlinear polarization rotation.
    • To analyze the performance of such a limiter in preserving optical pulse shapes.

    Main Methods:

    • Experimental and numerical simulations of light propagation in single-mode fiber.
    • Utilizing nonlinear polarization rotation in a standard single-mode fiber.

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

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    Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
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  • Employing a polarizer to create an optical limiter configuration.

    • Main Results:

    • Fundamental solitons do not exhibit pulse shape distortion under intensity-dependent polarization rotation.
    • The soliton behaves as a rigid unit during polarization rotation.
    • An optical limiter was successfully demonstrated with preserved output pulse shape.

    Conclusions:

    • Nonlinear polarization rotation is compatible with fundamental soliton propagation without shape degradation.
    • A practical optical limiter can be constructed using nonlinear polarization rotation in single-mode fiber.
    • The demonstrated optical limiter shows potential for applications requiring pulse shape preservation.