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 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.

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...

You might also read

Related Articles

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

Sort by

Same author

Social determinants of health and antimicrobial resistance in the UK: a scoping review.

BMJ open·2026

Same author

Infection following foot and ankle surgery : a subanalysis of data captured from the UK Foot and Ankle Thromboembolism (FATE) audit.

The bone & joint journal·2026

Same author

Spin Waves Excited by Hard X-Ray Transient Gratings.

Physical review letters·2026

Same author

Impact and cost-effectiveness of two interventions to prevent paediatric respiratory syncytial virus disease in Cameroon: a modelling approach.

Journal of global health·2026

Same author

Multivariate partial information decomposition: Constructions, inconsistencies, and alternative measures.

Physical review. E·2026

Same author

Laminar-specific control of response gain and orientation-tuning by parvalbumin-expressing inhibitory interneurons in primate visual cortex.

Research square·2026

Search research articles

Related Experiment Video

Updated: Mar 1, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Harmonium: An Ultrafast Vacuum Ultraviolet Facility.

Christopher A Arrell¹, José Ojeda², Luca Longetti²

¹Laboratory of Ultrafast Spectroscopy and Lausanne Centre for Ultrafast Science (LACUS) ISIC Station 6 Ecole Polytechnique Fédérale de Lausanne (EPFL) CH-1015 Lausanne;,

|June 4, 2017

Summary

Harmonium, a new vacuum ultraviolet photon source, enables advanced spectroscopy techniques with high resolution and flux. This facility supports ultrafast science research in Switzerland.

More Related Videos

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation

Published on: October 30, 2012

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization

Published on: August 6, 2018

Related Experiment Videos

Last Updated: Mar 1, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation

Published on: October 30, 2012

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization

Published on: August 6, 2018

Area of Science:

Ultrafast Science
Photon Source Development
Spectroscopy

Background:

The Lausanne Centre for Ultrafast Science (LACUS) developed Harmonium, a novel vacuum ultraviolet (VUV) photon source.
Existing infrastructure required enhancement for advanced spectroscopic studies.

Purpose of the Study:

To establish a versatile VUV photon source for ultrafast and steady-state spectroscopy.
To provide high energy and temporal resolution capabilities for diverse sample types.
To complement existing Swiss research facilities and advance ultrafast science.

Main Methods:

High harmonic generation (HHG) for VUV photon production (20-110 eV).
A pulse-preserving monochromator offering high energy (70 meV) or temporal (40 fs) resolution.
Three specialized endstations for liquids, solids (ARPES), and gas-phase molecules/clusters.

Main Results:

Harmonium delivers high photon flux (10^11 photons/sec at 38 eV) and high repetition rate (up to 15 kHz).
Commissioned endstations facilitate photoelectron spectroscopy (PES), angular resolved PES (ARPES), and coincidence PES/PIS.
The source provides tunable energy and time resolution for advanced material and molecular studies.

Conclusions:

Harmonium significantly enhances capabilities for ultrafast spectroscopy in Switzerland.
The facility supports a broad range of scientific investigations, from condensed matter to molecular dynamics.
It strengthens Switzerland's position in global ultrafast and X-ray science research.