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

1.6K
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...
1.6K
Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview01:13

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

692
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...
692
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

604
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...
604

You might also read

Related Articles

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

Sort by
Same author

P2Y12-oriented computational screening and functional validation identify antiplatelet compounds with antithrombotic activity.

Journal of advanced research·2026
Same author

Study on three-dimensional stress characteristics and torsional performance of titanium-steel tool joints.

Scientific reports·2026
Same author

Hematopoietic stem and progenitor cells derived platelet lysate promotes diabetic wound healing.

Molecular medicine (Cambridge, Mass.)·2026
Same author

A regenerative and programmable iPSC-derived platelet platform for universal drug delivery and immunotherapy.

Trends in biotechnology·2026
Same author

Clinical Outcomes of Orchiopexy and the Risk of Malignancy in Postpubertal Cryptorchid Patients.

Andrology·2026
Same author

RAPT: Retrieval-Augmented Visual Prompting with Text-Guidance for Pathological Image Classification.

IEEE journal of biomedical and health informatics·2026

Related Experiment Video

Updated: Oct 28, 2025

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

Distributed refractive index sensing based on bending-induced multimodal interference and Rayleigh backscattering

Pengbai Xu, Xinfeng Yu, Zeji Chen

    Optics Express
    |July 16, 2021
    PubMed
    Summary

    A novel refractive index (RI) sensor uses a bent single-mode fiber to detect external RI changes by analyzing light scattering. This practical sensor demonstrates high sensitivity for various applications.

    More Related Videos

    Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing
    08:12

    Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing

    Published on: March 13, 2013

    13.0K
    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    9.5K

    Related Experiment Videos

    Last Updated: Oct 28, 2025

    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
    Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing
    08:12

    Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing

    Published on: March 13, 2013

    13.0K
    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    9.5K

    Area of Science:

    • Photonics and Optical Sensing
    • Fiber Optic Sensors
    • Metrology

    Background:

    • Refractive index (RI) sensing is crucial for various scientific and industrial applications.
    • Existing RI sensors often face limitations in sensitivity, practicality, or adaptability.
    • Optical Frequency Domain Reflectometry (OFDR) offers high resolution for distributed sensing.

    Purpose of the Study:

    • To develop a distributed refractive index (RI) sensor with enhanced sensitivity and practicality.
    • To utilize higher-order modes in standard single-mode fiber for RI sensing.
    • To demonstrate the sensor's performance and adaptability.

    Main Methods:

    • A standard single-mode fiber was bent to excite higher-order modes that interact with the surrounding medium.
    • External RI variations altered the excited higher-order mode profiles.
    • Interference between these modes and the fundamental mode within the fiber core was analyzed.
    • Rayleigh backscattered spectra were monitored to detect wavelength shifts.

    Main Results:

    • A distributed RI sensor was successfully developed using a bent single-mode fiber.
    • The sensor achieved a high RI sensitivity of 39.08 nm/RIU.
    • The sensor maintained its buffer coating, indicating enhanced practicability.

    Conclusions:

    • The proposed fiber optic sensor effectively measures external refractive index changes.
    • Bending a single-mode fiber to excite higher-order modes is a viable method for distributed RI sensing.
    • The sensor's design offers practical advantages for diverse applications.