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

Stress: General Loading Conditions01:15

Stress: General Loading Conditions

374
To grasp the intricacy of real-world conditions where multiple loads are applied simultaneously to a structure, one might visualize a section passing through a specific point within a body, aligned parallel to the xy plane. This section is subjected to various forces, including original loads, normal forces, and shearing forces.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes....
374
Components of Stress01:23

Components of Stress

272
Stress analysis under multiple loading conditions is intricate, necessitating a comprehensive grasp of normal and shearing stresses. Consider a small cube at point O, subjected to stress on all six faces, visible or not. Normal stress components σx, σy, σz act perpendicularly to the x, y, and z axes. Shearing stress components τxy and τxz are exerted on faces perpendicular to these axes.
Interestingly, the hidden cube faces also experience these stresses, equal and...
272
Stress Concentrations in Circular Shafts01:18

Stress Concentrations in Circular Shafts

232
Consider the elastic torsion formula, which applies to a circular shaft with a consistent cross-section. This formula assumes that the shaft's ends are loaded with rigid plates firmly attached. However, in many cases, torques are applied to the shaft through mechanisms like flange couplings or gears, which are connected by keys inserted into keyways. This application method modifies the stress distribution near the point of torque application, causing it to deviate from the distributions...
232
Temperature Dependent Deformation01:12

Temperature Dependent Deformation

188
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
188

You might also read

Related Articles

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

Sort by
Same author

Photo-crosslinkable diazirine additives for direct photolithography of PEDOT:PSS.

Chemical communications (Cambridge, England)·2026
Same author

Continuum tactile sensing via an amplified liquid metal interface.

Science advances·2026
Same author

Phase 1 Trial of BCL-2 Inhibitor Lisaftoclax (APG-2575) in Chinese Patients With Relapsed/Refractory Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma and Other Non-Hodgkin Lymphomas.

Clinical lymphoma, myeloma & leukemia·2026
Same author

Mitochondria-Targeted Quinoline-Based Fluorescent Probes for Imaging of Viscosity and MAO‑A with High-Throughput Inhibitor Screening.

Chemical & biomedical imaging·2026
Same author

Liquid metal universal grippers for gentle, adaptable, multiscale manipulation.

Nature communications·2026
Same author

Monolithic III-V membrane photonic crystal lasers on SOI using selective lateral heteroepitaxy.

Light, science & applications·2026

Related Experiment Video

Updated: Sep 5, 2025

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
10:28

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Published on: July 5, 2016

10.4K

Stress Component Decoupling Analysis Based on Large Numerical Aperture Objective Lens, an Impractical Approach.

Ying Chang1, Donghui Fu1,2, Mingyuan Sun1

  • 1Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300072, China.

Materials (Basel, Switzerland)
|July 9, 2022
PubMed
Summary

Micro Raman spectroscopy struggles to decouple in-plane stress components in monocrystalline silicon (c-Si). High numerical aperture (NA) objective lenses accurately measure stress sums but not individual stress differences, limiting practical applications.

Keywords:
Raman-stress relationshipexperimental errorsmicro-Raman spectroscopystress state{100} monocrystalline silicon

More Related Videos

Sequential Application of Glass Coverslips to Assess the Compressive Stiffness of the Mouse Lens: Strain and Morphometric Analyses
07:56

Sequential Application of Glass Coverslips to Assess the Compressive Stiffness of the Mouse Lens: Strain and Morphometric Analyses

Published on: May 3, 2016

7.3K
Analyses of Actin Dynamics, Clutch Coupling and Traction Force for Growth Cone Advance
07:53

Analyses of Actin Dynamics, Clutch Coupling and Traction Force for Growth Cone Advance

Published on: October 21, 2021

3.5K

Related Experiment Videos

Last Updated: Sep 5, 2025

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
10:28

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Published on: July 5, 2016

10.4K
Sequential Application of Glass Coverslips to Assess the Compressive Stiffness of the Mouse Lens: Strain and Morphometric Analyses
07:56

Sequential Application of Glass Coverslips to Assess the Compressive Stiffness of the Mouse Lens: Strain and Morphometric Analyses

Published on: May 3, 2016

7.3K
Analyses of Actin Dynamics, Clutch Coupling and Traction Force for Growth Cone Advance
07:53

Analyses of Actin Dynamics, Clutch Coupling and Traction Force for Growth Cone Advance

Published on: October 21, 2021

3.5K

Area of Science:

  • Materials Science
  • Solid State Physics
  • Spectroscopy

Background:

  • Micro Raman spectroscopy is a key technique for analyzing internal stress in semiconductors.
  • Decoupling stress components in {100} monocrystalline silicon (c-Si) presents significant challenges.
  • The influence of objective lens numerical aperture (NA) on Raman stress characterization requires further investigation.

Purpose of the Study:

  • To investigate the impact of objective lens numerical aperture (NA) on Raman stress characterization in {100} monocrystalline silicon (c-Si).
  • To determine the feasibility of decoupling in-plane stress components using Micro Raman spectroscopy with varying NA.
  • To evaluate the practical limitations of current Raman microscopy systems for detailed stress analysis.

Main Methods:

  • Combined physical experiments and simulation experiments to analyze Raman spectra.
  • Investigated the effect of different objective lens numerical apertures (NA) on spectral results.
  • Utilized theoretical modeling to analyze the contributions of stress components to Raman shifts.

Main Results:

  • Raman spectroscopy with varying NA accurately determines the principal stress sum in c-Si.
  • Decoupling of in-plane stress components was not achieved, even with ideal spectral resolution.
  • The principal stress sum dominates the Raman shift (>98.7%), making stress differences negligible and experimentally indistinguishable.

Conclusions:

  • Micro Raman spectroscopy, particularly with large-NA objective lenses, is not practically feasible for decoupling stress components in {100} monocrystalline silicon.
  • The limitations stem from the dominance of the principal stress sum in the measured Raman shift.
  • Current Raman microscope systems lack the resolution to differentiate stress states when the principal stress sum is identical.