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Related Concept Videos

Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

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...
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Resonance is produced depending on the boundary conditions imposed on a wave. Resonance can be produced in a string under tension with symmetrical boundary conditions (i.e., has a node at each end). A node is defined as a fixed point where the string does not move. The symmetrical boundary conditions result in some frequencies resonating and producing standing waves, while other frequencies interfere destructively. Sound waves can resonate in a hollow tube, and the frequencies of the sound...
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Related Experiment Video

Updated: May 21, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

Resonantly-enhanced harmonic generation in Argon.

P Ackermann1, H Münch, T Halfmann

  • 1Institut für Angewandte Physik, Technische Universität Darmstadt, Hochschulstrasse 6, D-64289 Darmstadt, Germany. patric.ackermann@physik.tu-darmstadt.de

Optics Express
|June 21, 2012
PubMed
Summary

We enhanced harmonic generation in Argon by tuning laser pulses to a five-photon resonance. This significantly boosted the 5th, 7th, and 9th harmonic yields, optimizing conditions for this process.

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Last Updated: May 21, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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Published on: July 12, 2017

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Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

Published on: April 4, 2016

Area of Science:

  • Atomic, Molecular, and Optical Physics
  • Nonlinear Optics
  • Quantum Optics

Background:

  • Harmonic generation is a key process in nonlinear optics.
  • Multi-photon resonances significantly influence harmonic generation efficiency.
  • Understanding resonant enhancement is crucial for controlling light-matter interactions.

Purpose of the Study:

  • To investigate harmonic generation in Argon near a five-photon resonance.
  • To explore the effect of laser parameters on resonant enhancement.
  • To identify optimal conditions for enhanced harmonic generation.

Main Methods:

  • Systematic investigations of harmonic generation in Argon.
  • Using intense, tunable picosecond laser pulses.
  • Matching laser frequency to Stark-shifted multi-photon resonance.

Main Results:

  • Observed pronounced enhancement of 5th, 7th, and 9th harmonic orders.
  • Harmonic enhancement exceeded the order of the multi-photon resonance.
  • Studied harmonic yield across various laser intensities and wavelengths.

Conclusions:

  • Resonantly-enhanced harmonic generation is achievable in Argon.
  • Optimal conditions for enhanced harmonic generation were determined.
  • This work provides insights into controlling high-order harmonic generation.