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

Deactivation Processes: Jablonski Diagram01:25

Deactivation Processes: Jablonski Diagram

857
Luminescence, the emission of light by a substance that has absorbed energy, is a process that involves the interaction of molecules with light. The energy-level diagram, or Jablonski diagram, is a graphical representation of these interactions, illustrating the various states and transitions a molecule can undergo. In a typical Jablonski diagram, the lowest horizontal line represents the ground-state energy of the molecule, which is usually a singlet state. This state represents the energies...
857
Photoelectric Effect02:26

Photoelectric Effect

30.1K
When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
30.1K
Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals01:17

Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals

2.7K
Ideally, an unpaired electron shows a single peak in the EPR spectrum due to the transition between the two spin energy states. However, coupling interactions can occur between the spins of the unpaired electron and any neighboring spin-active nuclei. This hyperfine coupling results in hyperfine splitting, where the EPR signal is split into multiplets. The signals split into 2nI + 1 peaks, where n is the number of equivalent nuclei and I is the nuclear spin. These splitting patterns provide...
2.7K
Emission Spectra02:39

Emission Spectra

62.0K
When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
62.0K
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

2.5K
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...
2.5K
Molecular Spectroscopy: Absorption and Emission01:14

Molecular Spectroscopy: Absorption and Emission

2.7K
Molecules possess discrete energy levels called quantum states. Unlike atoms, which have simpler energy levels, molecules possess additional rotational and vibrational energy levels.  Each energy level is separated by an energy gap, with the gaps between adjacent electronic, vibrational, and rotational levels varying significantly. The three types of energy levels in a diatomic molecule are shown in Figure 1.
2.7K

You might also read

Related Articles

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

Sort by
Same author

[Application of multidisciplinary team diagnosis and treatment model in the management of patients with combined burns and heat stroke].

Zhonghua shao shang yu chuang mian xiu fu za zhi·2025
Same author

[Dedifferentiated adamantinoma of the humerus: report of a case].

Zhonghua bing li xue za zhi = Chinese journal of pathology·2025
Same author

Incorporation of transperineal ultrasonography and pelvic electromyography into the real clinical setting for the prediction of postpartum stress urinary incontinence.

Clinical radiology·2025
Same author

Corrigendum to "Fruquintinib in refractory metastatic colorectal cancer: a multicenter real-world study": [ESMO Open 9 (2024) 103702].

ESMO open·2025
Same author

[A multi-constraint optimal puncture path planning algorithm for percutaneous interventional radiofrequency thermal fusion of the L5/S1 segments].

Nan fang yi ke da xue xue bao = Journal of Southern Medical University·2024
Same author

Electrothermal filamentation of igniting plasmas.

Physical review. E·2024

Related Experiment Video

Updated: Sep 1, 2025

In Situ Measurement of Vacuum Window Birefringence using 25Mg+ Fluorescence
07:03

In Situ Measurement of Vacuum Window Birefringence using 25Mg+ Fluorescence

Published on: June 13, 2020

3.9K

Ionization states for the multipetawatt laser-QED regime.

I Ouatu1, B T Spiers1,2, R Aboushelbaya1

  • 1Department of Physics, Atomic and Laser Physics sub-Department, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom.

Physical Review. E
|August 17, 2022
PubMed
Summary

New methods using xenon gas ionization can now measure laser intensity in situ. This is crucial for understanding high-power laser-plasma interactions and energy transport in advanced physics research.

More Related Videos

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.1K
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

14.6K

Related Experiment Videos

Last Updated: Sep 1, 2025

In Situ Measurement of Vacuum Window Birefringence using 25Mg+ Fluorescence
07:03

In Situ Measurement of Vacuum Window Birefringence using 25Mg+ Fluorescence

Published on: June 13, 2020

3.9K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.1K
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

14.6K

Area of Science:

  • Plasma Physics
  • High-Intensity Laser-Matter Interactions

Background:

  • Multipetawatt laser facilities are advancing laser-plasma interaction physics.
  • Radiation reaction processes are critical for energy absorption and transport in these interactions.
  • Accurate in situ measurement of focused laser intensity is essential for quantifying these effects.

Purpose of the Study:

  • To propose and validate a novel method for measuring focused laser intensity in situ.
  • To implement and compare field ionization rates in particle-in-cell simulations.
  • To assess the impact of simulation dimensionality on accuracy.

Main Methods:

  • Utilizing xenon gas ionization at low pressure to measure focused laser intensity.
  • Implementing field ionization rates from established literature into the SMILEI particle-in-cell code.
  • Conducting one- and two-dimensional simulations to compare results.

Main Results:

  • Simulations successfully reproduced xenon charge states using implemented ionization rates.
  • Increasing simulation dimensionality did not introduce significant visible differences in results.
  • The proposed method provides a reliable way to verify laser intensity on target.

Conclusions:

  • Xenon gas ionization offers a viable in situ diagnostic for focused laser intensity.
  • Particle-in-cell simulations with validated ionization rates are effective tools for this application.
  • This technique is vital for advancing research in high-intensity laser-plasma physics.