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

UV–Vis Spectroscopy: Molecular Electronic Transitions

UV–Vis Spectroscopy: Molecular Electronic Transitions

In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this process,...

Atomic Fluorescence Spectroscopy

Atomic Fluorescence Spectroscopy

Atomic fluorescence spectroscopy (AFS) is an analytical technique that involves the electronic transitions of atoms in a flame, furnace, or plasma being excited by electromagnetic (EM) radiation. When these atoms absorb energy, they become excited and subsequently release energy as they return to their original state. This emitted light, or "fluorescence," is observed at a right angle to the incident beam. Both absorption and emission processes transpire at distinct wavelengths, which are...

UV–Vis Spectroscopy: Woodward–Fieser Rules

UV–Vis Spectroscopy: Woodward–Fieser Rules

UV–Visible absorption spectra of conjugated dienes arise from the lowest energy π&VeryThinSpace;→&VeryThinSpace;π* transitions. The light-absorbing part of the molecule is called the chromophore, and the substituents directly attached to the chromophore are called auxochromes. A strong correlation exists between the absorption maxima, λmax, and the structure of a conjugated π system. The Woodward–Fieser rules predict the value of λmax for a given structure by adding the contributions...

Atomic Emission Spectroscopy: Instrumentation

Atomic Emission Spectroscopy: Instrumentation

The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers. Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.

Atomic Absorption Spectroscopy: Instrumentation

Atomic Absorption Spectroscopy: Instrumentation

An atomic absorption spectrophotometer (AAS) comprises several components: a radiation source, an atomizer, a monochromator, and a detector. The radiation source can be a hollow-cathode lamp (HCL) or an electrodeless-discharge lamp (EDL), both of which provide a narrow emission line of the required wavelength. However, some instruments use continuum sources and high-resolution monochromators to achieve a narrow range of radiation.
The atomizer used in AAS can be either a flame atomizer or an...

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...

You might also read

Related Articles

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

Sort by

Same author

Correlation-Driven Charge Order in a Frustrated Two-Dimensional Atom Lattice.

Physical review letters·2019

Same author

Invited review: Examining farmers' personalities and attitudes as possible risk factors for dairy cattle health, welfare, productivity, and farm management: A systematic scoping review.

Journal of dairy science·2019

Same author

Triangular Spin-Orbit-Coupled Lattice with Strong Coulomb Correlations: Sn Atoms on a SiC(0001) Substrate.

Physical review letters·2015

Same author

Search for resonant diboson production in the [Formula: see text] final state in [Formula: see text] collisions at [Formula: see text] TeV with the ATLAS detector.

The European physical journal. C, Particles and fields·2015

Same author

Measurement of the charge asymmetry in top quark pair production in <i>pp</i> collisions at [Formula: see text] using the ATLAS detector.

The European physical journal. C, Particles and fields·2015

Same author

Search for lepton flavour violation in the <i>eμ</i> continuum with the ATLAS detector in [Formula: see text]<i>pp</i> collisions at the LHC.

The European physical journal. C, Particles and fields·2015

Same journal

Ambient stability and surface adhesion of 2D polyaramid nanofilms.

Faraday discussions·2026

Same journal

Spiers Memorial Lecture: Spin-mediated promotion of magnetic metal catalysts.

Faraday discussions·2026

Same journal

Helium spin-echo as a surface-sensitive probe of vibrational energy dissipation.

Faraday discussions·2026

Same journal

Near-infrared vibrational second harmonic generation: a new nonlinear interfacial vibrational spectroscopy.

Faraday discussions·2026

Same journal

CO on a Rh/Fe<sub>3</sub>O<sub>4</sub> single-atom catalyst: high-resolution infrared spectroscopy and near-ambient-pressure scanning tunnelling microscopy.

Faraday discussions·2026

Same journal

Evolution of size-selected Pt cluster catalysts on prototypical oxide supports.

Faraday discussions·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 23, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Optical frequency comb spectroscopy.

A Foltynowicz¹, P Masłowski, T Ban

¹JILA, National Institute of Standards and Technology, University of Colorado, Department of Physics, Boulder, CO 80309-0440, USA. aleksandra.matyba@jila.colorado.edu

Faraday Discussions

|March 31, 2012

Summary

This summary is machine-generated.

We developed a mid-infrared frequency comb spectrometer for highly sensitive, high-resolution trace gas detection. This new system enables rapid, precise measurements of molecular concentrations in complex gas mixtures.

More Related Videos

Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Related Experiment Videos

Last Updated: May 23, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Area of Science:

Spectroscopy
Molecular detection
Optical frequency combs

Background:

Optical frequency combs offer vast spectral coverage and high resolution for atom/molecule detection.
Previous cavity-enhanced direct frequency comb spectroscopy was limited to visible/near-infrared ranges.

Purpose of the Study:

To develop a broadband, high-resolution mid-infrared frequency comb spectrometer.
To enable sensitive trace gas detection in the molecular fingerprint region.

Main Methods:

Utilized a mid-infrared frequency comb-based Fourier transform spectrometer.
Employed a multipass cell for gas sample analysis.
Demonstrated sensitivity enhancement using cavity-enhanced spectroscopy.

Main Results:

Achieved broadband, high-resolution (0.0035 cm-1) spectra in the 2100-3600 cm-1 range.
Detected molecular species at part-per-billion concentrations in under 1 minute.
Reached a sensitivity of 2 x 10(-8) cm-1 Hz-1/2, with potential for 100-fold improvement.

Conclusions:

The developed mid-infrared comb spectrometer provides a powerful tool for trace gas analysis.
Future cavity-enhanced systems promise near real-time, high-sensitivity, high-resolution spectroscopic measurements.
This technology has broad applications in environmental monitoring, industrial process control, and medical diagnostics.