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

Compact Bone01:27

Compact Bone

16.8K
Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
16.8K
Compacting Factor test01:22

Compacting Factor test

606
The compacting factor test is a method used to assess the workability of concrete. It is  especially suitable for concrete mixes containing aggregates up to one and a half inches in size. This test involves specialized equipment consisting of two truncated cone-shaped hoppers and a cylinder, all with polished interior surfaces to minimize friction.
The procedure begins by placing concrete into the upper hopper without any compaction. Once filled, the bottom door of this hopper is opened,...
606
Beams01:30

Beams

1.9K
Beams are integral components of structural engineering and construction, designed to support loads applied at various points along their length. These long, straight members can be classified based on geometry, cross-section, support type, and equilibrium condition.
Based on geometry, beams can be straight, tapered, or curved. Straight beams are the most common type and have a constant cross-section throughout their length. Tapered beams, on the other hand, have a varying cross-section along...
1.9K
Deflection of a Beam01:19

Deflection of a Beam

751
Accurately determining beam deflection and slope under various loading conditions in structural engineering is crucial for ensuring safety and structural integrity. Singularity functions offer a streamlined approach to analyzing beams, especially when multiple loading functions complicate the bending moment equation.
Singularity functions, described in an earlier lesson, are powerful mathematical tools that represent discontinuities within a function commonly encountered in structural loading...
751
Prismatic Beams: Problem Solving01:15

Prismatic Beams: Problem Solving

481
In the design of a supported timber beam subjected to a distributed load, both the beam's physical dimensions and the timber's characteristics, such as its grade and species, are critical. These factors determine the allowable stress values, which are crucial for calculating the necessary beam depth to ensure structural integrity and safety.
The design begins with analyzing the beam as a free body to identify moments and force balances, thereby determining support reactions. Next, the...
481
Principal Stresses in a Beam01:11

Principal Stresses in a Beam

757
In prismatic beams subject to arbitrary transverse loading, It is essential to analyze the interaction between shear forces and bending moments in order to understand stress distribution and ensure structural integrity. The highest normal or bending stress occurs at the outer fibers of the beam, decreasing linearly to zero at the neutral axis. In contrast, shear stress peaks at the neutral axis and diminishes toward the outer surfaces.
Analyzing principal stresses is crucial, especially in...
757

You might also read

Related Articles

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

Sort by
Same author

Unified framework for isolation analysis in microwave photonic circulators.

Optics letters·2026
Same author

Hybrid integrated III-V / lithium niobate dual-polarization coherent optical transmitter.

Optics express·2026
Same author

High-precision chirp-rate measurement of LFM microwave signals via photonic fractional Fourier transform with low-frequency detection.

Optics letters·2026
Same author

High-speed, widely tunable bidirectional 1310 nm MEMS VCSELs for OCT imaging.

Optics express·2025
Same author

A nanolaser with extreme dielectric confinement.

Science advances·2025
Same author

Defect-insensitive bound states in the continuum in antisymmetric trapezoid metasurfaces in the visible range.

Nanophotonics (Berlin, Germany)·2025
Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026
Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026
Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026
Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026
Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026
Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026
See all related articles

Related Experiment Video

Updated: Feb 13, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
10:54

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

15.3K

Compact high-efficiency vortex beam emitter based on a silicon photonics micro-ring.

Shimao Li, Yunhong Ding, Xiaowei Guan

    Optics Letters
    |March 16, 2018
    PubMed
    Summary
    This summary is machine-generated.

    We developed a silicon micro-ring resonator device that efficiently emits vortex beams carrying orbital angular momentum. This compact photonic device generates vector vortex beams with high efficiency and low divergence for diverse applications.

    More Related Videos

    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

    9.0K
    Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
    09:29

    Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

    Published on: September 27, 2011

    12.7K

    Related Experiment Videos

    Last Updated: Feb 13, 2026

    Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
    10:54

    Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

    Published on: July 8, 2013

    15.3K
    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

    9.0K
    Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
    09:29

    Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

    Published on: September 27, 2011

    12.7K

    Area of Science:

    • Photonics and Optical Engineering
    • Integrated Optics
    • Nanophotonics

    Background:

    • Vortex beams, carrying orbital angular momentum, are crucial for advanced optical applications.
    • Existing vortex beam emitters often face challenges with efficiency, size, or tunability.

    Purpose of the Study:

    • To propose and demonstrate a novel, high-efficiency vortex beam emitter.
    • To achieve selective generation of vector vortex beams with controlled topological charges.

    Main Methods:

    • Integration of a silicon micro-ring resonator with a metal mirror.
    • Utilizing wavelength selectivity for topological charge control.
    • Characterization of emission efficiency and divergence angle.

    Main Results:

    • Demonstrated a compact, high-efficiency vortex beam emitter.
    • Achieved emission efficiencies up to 37%.
    • Successfully generated vector vortex beams with various topological charges at different wavelengths, exhibiting a small divergence angle.

    Conclusions:

    • The proposed silicon micro-ring resonator device offers a promising solution for efficient vortex beam generation.
    • This technology enables compact and tunable sources for applications requiring orbital angular momentum.
    • The demonstrated high efficiency and selective generation pave the way for advanced photonic integrated devices.