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

Unsymmetric Bending - Angle of Neutral Axis01:15

Unsymmetric Bending - Angle of Neutral Axis

475
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...
475
Bending of Curved Members - Neutral Surface01:16

Bending of Curved Members - Neutral Surface

264
In curved beams, unlike straight beams, the stress distribution across the cross-section is not uniform due to the beam's curvature. This non-uniformity arises because the neutral axis, where stress is zero, does not align with the centroid of the section. In a curved beam, the strain varies along the section as a function of the distance from the neutral axis.
Consider the curved member described in the previous lesson. According to Hooke's law, which relates stress to strain within...
264
Design of Prismatic Beams for Bending01:23

Design of Prismatic Beams for Bending

389
The design of prismatic beams, structural elements with a uniform cross-section, focuses on ensuring safety and structural integrity under load. The design process begins by determining the allowable stress, either from material properties tables, or by dividing the material's ultimate strength by a safety factor. This safety factor is essential for accommodating uncertainties, and varies depending on the material—timber, steel, or concrete—with each having unique strength and...
389
Bending of Curved Members - Strain Analysis01:14

Bending of Curved Members - Strain Analysis

248
The mechanics of deformation in curved members, such as beams or arches, under bending moments, involve complex responses. When such a member, symmetric about the y-axis and shaped like a segment of a circle centered at point C, is subjected to equal and opposite forces, its curvature and surface lengths change significantly. This alteration results in the shift of the curvature's center from C to C', indicating a tighter curve.
The important part of bending analysis for such a member...
248
Bewley Lattice Diagram01:12

Bewley Lattice Diagram

894
The Bewley lattice diagram, developed by L. V. Bewley, effectively organizes the reflections occurring during transmission-line transients. It visually represents how voltage waves propagate and reflect within a transmission line, making it easier to understand the complex interactions that occur.
894
Unsymmetric Bending01:18

Unsymmetric Bending

471
Unsymmetrical bending occurs when the bending moment applied to a structural member does not align with its principal axis. This misalignment leads to complex stress distributions and deflection patterns that differ from those in symmetrical bending, and are essential for designing structures to withstand different loading conditions. In unsymmetrical bending, the neutral axis—where stress is zero—does not necessarily align with the geometric axes of the cross-section. The...
471

You might also read

Related Articles

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

Sort by
Same author

Two-Dimensional Chiral Perovskites for Integrated High-Performance Ultraviolet Full-Stokes Polarization Detection.

Journal of the American Chemical Society·2026
Same author

Compact high-Q multimode InGaAsP/InP microring resonators enabled by mode-selective excitation.

Optics express·2026
Same author

Socioeconomic disparities and health-related parenting practices in shaping early infant neurodevelopment: evidence from a Chinese prospective birth cohort.

BMC pregnancy and childbirth·2026
Same author

Association of borderline hypertension defined by ACC-AHA diagnostic criteria during pregnancy with neurodevelopment in infants.

BMC medicine·2026
Same author

MALFM-Captioner: A Multipath Alignment Learning for Image Captioning With Feature Mask.

IEEE transactions on neural networks and learning systems·2026
Same author

superLPNet: a super lightweight parameter deep learning model for brain age estimation from structural MRI.

Magma (New York, N.Y.)·2026
Same journal

Long-term stabilization of intensity-difference squeezing from four-wave mixing in rubidium vapor.

Optics express·2026
Same journal

Robust 3D topography measurement of large-range high-aspect-ratio structures based on dual-domain statistical filtering in SD-OCT.

Optics express·2026
Same journal

Broadband transmissive terahertz metasurface for simultaneous quad-mode OAM multiplexing.

Optics express·2026
Same journal

Leveraging two-dimensional materials for high-sensitivity optical sensors: quasi-bound states in the continuum within hybrid metasurfaces.

Optics express·2026
Same journal

Resolution investigation for dual-spherical-wave optical scanning holographic microscopy: methods and performance.

Optics express·2026
Same journal

Robustness of parallel subnetwork-filtered diffractive deep neural networks.

Optics express·2026
See all related articles

Related Experiment Video

Updated: Sep 25, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

19.1K

Low loss modified Bezier bend waveguide.

Tianyu Sun, Mingjun Xia

    Optics Express
    |April 27, 2022
    PubMed
    Summary
    This summary is machine-generated.

    We developed a modified Bezier bend for photonic integrated circuits, significantly reducing waveguide bend loss in silicon and silicon nitride platforms. This innovation lowers signal loss for improved device performance.

    More Related Videos

    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
    07:28

    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

    Published on: August 30, 2012

    10.9K
    Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy
    08:01

    Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

    Published on: May 12, 2020

    8.2K

    Related Experiment Videos

    Last Updated: Sep 25, 2025

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
    11:08

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

    Published on: November 30, 2012

    19.1K
    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
    07:28

    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

    Published on: August 30, 2012

    10.9K
    Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy
    08:01

    Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

    Published on: May 12, 2020

    8.2K

    Area of Science:

    • Photonics
    • Materials Science
    • Electrical Engineering

    Background:

    • Waveguide bends are critical components in photonic integrated circuits (PICs).
    • Traditional circular and Bezier bends suffer from significant optical losses, especially at small radii.
    • Reducing bend loss is essential for miniaturization and improved performance of PICs.

    Purpose of the Study:

    • To propose and experimentally validate a novel modified Bezier bend design.
    • To significantly reduce waveguide bend loss in silicon and silicon nitride photonic integrated circuits.
    • To demonstrate the versatility of the design across different material platforms.

    Main Methods:

    • Design and simulation of a modified Bezier bend structure.
    • Experimental fabrication and characterization of the proposed bend on silicon and silicon nitride platforms.
    • Comparison of bend loss with traditional circular and Bezier bends.

    Main Results:

    • For silicon, bend loss was reduced from 0.367 dB/90° (circular) and 0.35 dB/90° (Bezier) to 0.117 dB/90° at a 1 µm radius.
    • For silicon nitride, bend loss decreased from 0.65 dB/90° (circular) and 0.575 dB/90° (Bezier) to 0.32 dB/90° at a 12 µm radius.
    • The modified Bezier bend demonstrated substantial loss reduction on both material platforms.

    Conclusions:

    • The modified Bezier bend offers a significant improvement in reducing waveguide loss for PICs.
    • The design is effective for both silicon and silicon nitride platforms and adaptable to others like InP, LN, and GaAs.
    • This advancement facilitates the development of more efficient and compact photonic devices.