Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview

Ultraviolet–visible (UV–visible or UV–Vis) spectroscopy is an analytical technique that investigates the interaction between matter and UV–Vis light within the electromagnetic spectrum. This method is widely used for its versatility, simplicity, and relatively quick data acquisition, making it valuable for both qualitative and quantitative analysis. When UV–Vis radiation passes through a material, molecules absorb light depending on the energy required for electronic transitions. As a result...

UV–Vis Spectrometers

UV–Vis Spectrometers

The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell. Samples for...

You might also read

Related Articles

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

Sort by

Same author

Diagnostic value of abdominal follow-up sonography in polytrauma patients: A retrospective study.

Medicine·2020

Same author

Imaging and Localizing Individual Atoms Interfaced with a Nanophotonic Waveguide.

Physical review letters·2020

Same author

Multiple Sclerosis Performance Test: validation of self-administered neuroperformance modules.

European journal of neurology·2020

Same author

Identification of charged amino acids required for nuclear localization of human L1 ORF1 protein.

Mobile DNA·2019

Same author

Wavelength-scale errors in optical localization due to spin-orbit coupling of light.

Nature physics·2019

Same author

Observation of Ultrastrong Spin-Motion Coupling for Cold Atoms in Optical Microtraps.

Physical review letters·2019

Search research articles

Related Experiment Video

Updated: Jun 22, 2026

Ultrafast Laser-Ablated Nanoparticles and Nanostructures for Surface-Enhanced Raman Scattering-Based Sensing Applications

Ultrafast Laser-Ablated Nanoparticles and Nanostructures for Surface-Enhanced Raman Scattering-Based Sensing Applications

Published on: June 16, 2023

Ultra-sensitive surface absorption spectroscopy using sub-wavelength diameter optical fibers.

F Warken, E Vetsch, D Meschede

|June 24, 2009

Summary

Sub-wavelength optical fibers detect particle absorption with high sensitivity due to their evanescent fields. This method reveals molecular agglomeration dynamics on surfaces at ambient conditions.

More Related Videos

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Published on: May 11, 2014

Multimodal Imaging and Spectroscopy Fiber-bundle Microendoscopy Platform for Non-invasive, In Vivo Tissue Analysis

Multimodal Imaging and Spectroscopy Fiber-bundle Microendoscopy Platform for Non-invasive, In Vivo Tissue Analysis

Published on: October 17, 2016

Related Experiment Videos

Last Updated: Jun 22, 2026

Ultrafast Laser-Ablated Nanoparticles and Nanostructures for Surface-Enhanced Raman Scattering-Based Sensing Applications

Ultrafast Laser-Ablated Nanoparticles and Nanostructures for Surface-Enhanced Raman Scattering-Based Sensing Applications

Published on: June 16, 2023

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Published on: May 11, 2014

Multimodal Imaging and Spectroscopy Fiber-bundle Microendoscopy Platform for Non-invasive, In Vivo Tissue Analysis

Multimodal Imaging and Spectroscopy Fiber-bundle Microendoscopy Platform for Non-invasive, In Vivo Tissue Analysis

Published on: October 17, 2016

Area of Science:

Optics and Photonics
Materials Science
Chemical Sensing

Background:

Sub-wavelength optical fibers possess strong evanescent fields.
Evanescent fields interact with particles on the fiber surface.
Conventional surface spectroscopy has limitations in sensitivity.

Purpose of the Study:

To demonstrate a novel method for detecting particle absorption on optical fibers.
To leverage evanescent fields for enhanced surface spectroscopy.
To study molecular agglomeration dynamics.

Main Methods:

Utilizing sub-wavelength diameter air-clad optical fibers.
Measuring fiber transmission to detect surface absorption.
Employing 3,4,9,10-perylene-tetracarboxylic dianhydride (PTCDA) as a model molecule.

Main Results:

Absorption detection via fiber transmission is orders of magnitude higher than conventional methods.
Sensitive detection of sub-monolayers of PTCDA molecules was achieved.
Real-time observation of PTCDA agglomeration dynamics over seconds to minutes.

Conclusions:

Sub-wavelength optical fibers offer a highly sensitive platform for surface spectroscopy.
The evanescent field effect significantly enhances particle absorption detection.
This technique is suitable for studying dynamic processes like molecular agglomeration at ambient conditions.