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

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...
Total Internal Reflection Fluorescence Microscopy01:05

Total Internal Reflection Fluorescence Microscopy

Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview01:13

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...
IR Frequency Region: Fingerprint Region01:03

IR Frequency Region: Fingerprint Region

IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the C=O, C=N, and C=C occur between 1600–1850 cm−1.
The...

You might also read

Related Articles

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

Sort by
Same author

Photodetector sensitivity control for weight setting in optoelectronic neural networks.

Applied optics·2010
Same author

Frequency domain optical reflectometer using a Gaas optoelectronic mixer.

Applied optics·2010
Same author

Swept wavelength reflectometer for integrated-opticmeasurements.

Applied optics·2010
Same author

Hybrid optoelectronic integrated circuit.

Applied optics·2010
Same author

High gain optical detection with GaAs field effect transistors.

Applied optics·2010
Same author

Three-dimensional television by texture parallax.

Applied optics·2010
Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026
Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026
Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026
Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026
Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026
Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026
See all related articles

Related Experiment Video

Updated: Jun 14, 2026

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements
09:10

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

Published on: December 5, 2025

Frequency domain optical reflectometer.

R I Macdonald

    Applied Optics
    |March 25, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A new correlation reflectometer effectively detects weak reflections in optical fibers. This instrument achieves over 70 dB round-trip range, aiding in fiber element characterization and fault location.

    More Related Videos

    Doppler Optical Coherence Tomography of Retinal Circulation
    10:46

    Doppler Optical Coherence Tomography of Retinal Circulation

    Published on: September 18, 2012

    Optical Frequency Domain Imaging of Ex vivo Pulmonary Resection Specimens: Obtaining One to One Image to Histopathology Correlation
    14:21

    Optical Frequency Domain Imaging of Ex vivo Pulmonary Resection Specimens: Obtaining One to One Image to Histopathology Correlation

    Published on: January 22, 2013

    Related Experiment Videos

    Last Updated: Jun 14, 2026

    The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements
    09:10

    The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

    Published on: December 5, 2025

    Doppler Optical Coherence Tomography of Retinal Circulation
    10:46

    Doppler Optical Coherence Tomography of Retinal Circulation

    Published on: September 18, 2012

    Optical Frequency Domain Imaging of Ex vivo Pulmonary Resection Specimens: Obtaining One to One Image to Histopathology Correlation
    14:21

    Optical Frequency Domain Imaging of Ex vivo Pulmonary Resection Specimens: Obtaining One to One Image to Histopathology Correlation

    Published on: January 22, 2013

    Area of Science:

    • Optical Engineering
    • Fiber Optics
    • Metrology

    Background:

    • Optical fiber systems are susceptible to signal loss and degradation from various reflective elements.
    • Accurate characterization of reflective properties is crucial for maintaining signal integrity and identifying faults.

    Purpose of the Study:

    • To describe a novel correlation reflectometer operating in the frequency domain.
    • To demonstrate its capability in detecting weak discrete reflections, specifically end reflections in optical fibers.

    Main Methods:

    • Utilized a correlation reflectometer operating in the frequency domain.
    • Employed a 2.2-km length of optical fiber with an index-matched end for testing.
    • Measured round-trip range using a 1-mW optical source.

    Main Results:

    • The instrument successfully detected end reflections in a 2.2-km fiber.
    • Achieved a round-trip range exceeding 70 dB with low optical source power (1 mW).
    • Demonstrated suitability for detecting weak discrete reflections.

    Conclusions:

    • The frequency-domain correlation reflectometer is well-suited for detecting weak discrete reflections.
    • This method shows significant promise for characterizing reflective properties of optical fiber elements like tapers, microbends, and splices.
    • The technique may be valuable for optical fiber fault location.