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Related Concept Videos

Unsymmetric Bending - Angle of Neutral Axis01:15

Unsymmetric Bending - Angle of Neutral Axis

363
Unsymmetrical bending occurs when a structural member is subjected to bending moments in a plane that does not align with the member's principal axes. This scenario typically arises in beams and other structural components when loads are applied at non-ideal angles, introducing complexities in stress analysis.
When a bending moment is applied at an angle θ concerning the vertical axis of a symmetrical member, it can be resolved into components along the member's principal...
363

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    Area of Science:

    • Photonics
    • Quantum Computing
    • Materials Science

    Background:

    • Integrated optical devices are essential for quantum computing.
    • Wave-plate operations are crucial for manipulating quantum information.
    • Existing methods for creating optical axis waveguides are limited.

    Purpose of the Study:

    • To propose and demonstrate a novel technique for fabricating arbitrarily rotated optical axis waveguides.
    • To enable on-chip arbitrary wave-plate operations for quantum information processing.
    • To advance the development of integrated universal quantum computing algorithms.

    Main Methods:

    • Fabrication of a circular isotropic main waveguide using beam shaping.
    • Induction of a rotated optical axis via an artificial stress field using a trimming line.
    • Femtosecond laser direct writing technology.

    Main Results:

    • Successful fabrication of high-performance half- and quarter-wave plates.
    • Demonstration of high-fidelity (97.1%) Pauli-X gate operation using quantum process tomography.
    • Creation of optical axis waveguides with arbitrary rotation.

    Conclusions:

    • The proposed technique provides a unique method for fabricating rotated optical axis waveguides.
    • This advancement facilitates on-chip arbitrary wave-plate operations for polarization-encoded qubits.
    • The work opens new prospects for polarization-encoded information in photonic integrated circuits.