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

UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

UV–Vis Spectroscopy: Molecular Electronic Transitions

3.0K
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...
3.0K
Atomic Spectroscopy: Absorption, Emission, and Fluorescence01:23

Atomic Spectroscopy: Absorption, Emission, and Fluorescence

3.1K
Atomic spectroscopy is a vital tool in elemental analysis, both qualitatively and quantitatively. It can be broadly divided into optical spectroscopy, mass spectroscopy, and X-ray spectroscopy methods. The optical spectroscopic methods are atomic absorption spectroscopy (AAS), atomic emission spectroscopy (AES), and atomic fluorescence spectroscopy (AFS). The first step in all three methods is atomization, where the solid, liquid, or solution-phase samples are converted into gas-phase atoms and...
3.1K
Atomic Absorption Spectroscopy: Overview01:27

Atomic Absorption Spectroscopy: Overview

3.2K
Atomic absorption spectroscopy (AAS) is a technique used to analyze elements by measuring electromagnetic radiation (EMR) absorbed by atoms, which causes them to transition to a higher-energy orbit. The most crucial step in AAS is atomization, where the analyte is converted into gas-phase atoms, typically through a flame or furnace. Some of these atoms become thermally excited in the flame, while most remain in the ground state.
When irradiated by EMR of a particular wavelength, these...
3.2K
Atomic Absorption Spectroscopy: Atomization Methods01:25

Atomic Absorption Spectroscopy: Atomization Methods

1.8K
Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the...
1.8K
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

3.0K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
3.0K
Atomic Fluorescence Spectroscopy01:29

Atomic Fluorescence Spectroscopy

1.1K
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...
1.1K

You might also read

Related Articles

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

Sort by
Same author

HiSCR is not PASI: Misleading primary outcomes in hidradenitis suppurativa clinical trials.

Journal of the European Academy of Dermatology and Venereology : JEADV·2026
Same author

European S2k guidelines on management of autoimmune blistering diseases in children and adolescents.

Journal of the European Academy of Dermatology and Venereology : JEADV·2026
Same author

Multi-omics profiling of chronic immune-mediated skin diseases: SKINERGY protocol and strategic evaluation.

Journal of the European Academy of Dermatology and Venereology : JEADV·2026
Same author

Impact of COVID-19 disease and vaccination on dermatological immune-mediated inflammatory diseases atopic dermatitis, psoriasis, and vitiligo: a Target2B! substudy.

The Journal of dermatology·2025
Same author

European S2k guidelines for hidradenitis suppurativa/acne inversa part 2: Treatment.

Journal of the European Academy of Dermatology and Venereology : JEADV·2024
Same author

Acute generalized exanthematous pustulosis: European expert consensus for diagnosis and management.

Journal of the European Academy of Dermatology and Venereology : JEADV·2024

Related Experiment Video

Updated: May 5, 2026

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
08:53

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

17.3K

Attosecond spectroscopy in condensed matter.

A L Cavalieri1, N Müller, Th Uphues

  • 1Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, D-85748 Garching, Germany. adrian.cavalieri@mpq.mpg.de

Nature
|October 26, 2007
PubMed
Summary
This summary is machine-generated.

Researchers observed electron dynamics in solids using attosecond techniques. They measured a 100-attosecond delay in photoelectron emission, revealing insights into charge dynamics in condensed matter.

More Related Videos

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

7.0K
All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

8.3K

Related Experiment Videos

Last Updated: May 5, 2026

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
08:53

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

17.3K
High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

7.0K
All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

8.3K

Area of Science:

  • Condensed-matter physics
  • Attosecond science
  • Quantum electronics

Background:

  • Understanding electron dynamics is crucial for advanced technologies like semiconductors and photovoltaics.
  • Probing ultrafast electronic processes, occurring on the attosecond (10^-18 s) timescale, remains a significant challenge.
  • Atomic motion is observable on femtosecond timescales, but electron dynamics require even higher resolution.

Purpose of the Study:

  • To extend attosecond techniques to observe electron motion in condensed-matter systems and surfaces in real time.
  • To achieve direct time-domain access to charge dynamics with attosecond resolution.
  • To investigate fundamental electronic processes in solids.

Main Methods:

  • Application of attosecond techniques, previously used for isolated atoms, to condensed-matter systems.
  • Probing photoelectron emission from single-crystal tungsten.
  • Real-time observation of electron dynamics using attosecond resolution.

Main Results:

  • Demonstrated direct time-domain access to charge dynamics with attosecond resolution.
  • Observed a delay of approximately 100 attoseconds between photoelectron emission from core and conduction band states.
  • Provided experimental evidence of electron dynamics in condensed matter on the attosecond timescale.

Conclusions:

  • Attosecond metrology is a powerful tool for studying electron dynamics in condensed-matter systems and on surfaces.
  • The observed delay highlights differences in electron behavior from localized and delocalized states.
  • This work opens new avenues for exploring fundamental electronic processes in solids.