Jove
Visualize
Contact Us

Related Concept Videos

Interference and Diffraction02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
IR Spectrometers01:25

IR Spectrometers

There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations01:08

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single stretching vibration...
Atomic Absorption Spectroscopy: Interference01:25

Atomic Absorption Spectroscopy: Interference

Interference leads to systematic error in atomic absorption (AA) measurements by enhancing or diminishing the analytical signal or the background. These interferences can be grouped into three main categories: spectral interference, chemical interference, and physical interference.
Spectral interference occurs when signals from other elements or molecules overlap with the analyte signal, falsely elevating or masking the analyte's absorbance. This interference can be corrected using Zeeman,...

You might also read

Related Articles

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

Sort by
Same author

Assessment of ultraviolet radiation impact on human skin tissue using double-exposure digital holographic interferometry.

Journal of biomedical optics·2025
Same author

Gabor's holography: seven decades influencing optics [Invited].

Applied optics·2022
Same author

Mechanical test study in composites using digital holographic interferometry and optical coherence tomography simultaneously.

Applied optics·2020
Same author

Cortical bone quality affectations and their strength impact analysis using holographic interferometry.

Biomedical optics express·2018
Same author

Transmission out-of-plane interferometer to study thermal distributions in liquids.

Optics letters·2018
Same author

Holographic otoscope using dual-shot-acquisition for the study of eardrum biomechanical displacements.

Applied optics·2013
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 Experiment Video

Updated: May 11, 2026

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material
11:57

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material

Published on: May 20, 2013

Interferometric study on birds' feathers.

Manuel H De la Torre-Ibarra1, Fernando Mendoza Santoyo

  • 1Centro de Investigaciones en Óptica A.C. Loma del Bosque, 115 Lomas del Campestre, León, Guanajuato, México 37150. mandlti@cio.mx

Journal of Biomedical Optics
|May 24, 2013
PubMed
Summary

Researchers used digital holographic interferometry to measure feather microdisplacements in live birds. This optical technique provides full-field displacement maps, crucial for understanding feather mechanics and aerodynamics.

More Related Videos

Using a Thermal Camera to Measure Heat Loss Through Bird Feather Coats
04:55

Using a Thermal Camera to Measure Heat Loss Through Bird Feather Coats

Published on: June 17, 2020

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds
10:07

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds

Published on: November 6, 2015

Related Experiment Videos

Last Updated: May 11, 2026

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material
11:57

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material

Published on: May 20, 2013

Using a Thermal Camera to Measure Heat Loss Through Bird Feather Coats
04:55

Using a Thermal Camera to Measure Heat Loss Through Bird Feather Coats

Published on: June 17, 2020

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds
10:07

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds

Published on: November 6, 2015

Area of Science:

  • Biophysics
  • Optical Metrology
  • Materials Science

Background:

  • Optical techniques like speckle pattern interferometry are vital for nondestructive testing.
  • Predicting mechanical behavior often requires mathematical models, which are challenging for complex organic samples.
  • Birds' feathers possess remarkable mechanical and aerodynamic properties due to their structure.

Purpose of the Study:

  • To apply digital holographic interferometry (DHI) to live birds for measuring feather microdisplacements.
  • To overcome the limitations of mathematical modeling for complex biological materials.
  • To present the first known full-field microdisplacement maps of bird plumage.

Main Methods:

  • Utilized an out-of-plane sensitive digital holographic interferometer (DHI).
  • Recorded multiple images from various plumage sections of live birds.
  • Applied optical phase recovery techniques to the backscattering signal.

Main Results:

  • Successfully obtained microdisplacement maps of hummingbird and parakeet plumage.
  • Demonstrated the capability of DHI for nonrepeatable and unpredictable experiments on live subjects.
  • Provided unprecedented full-field microdisplacement data for avian feathers.

Conclusions:

  • Digital holographic interferometry is a powerful tool for analyzing the micro-mechanical behavior of biological structures like feathers.
  • The study presents novel insights into the structural mechanics underlying feather function.
  • This technique opens new avenues for studying the biomechanics of avian flight and material properties.