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Atomic Absorption Spectroscopy: Interference

Atomic Absorption Spectroscopy: Interference

Interference leads to systematic error in atomic absorption (AA) measurements by enhancing or diminishing the analytical signal or the background. These interferences can be grouped into three main categories: spectral interference, chemical interference, and physical interference.
Spectral interference occurs when signals from other elements or molecules overlap with the analyte signal, falsely elevating or masking the analyte's absorbance. This interference can be corrected using Zeeman,...

$Interference and Diffraction$ 02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

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Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...

Dual Nature of Electromagnetic (EM) Radiation

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Atomic Emission Spectroscopy: Interference

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Related Experiment Video

Updated: May 27, 2026

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C₂, CN, and TiO Spectra Following Laser-induced Optical Breakdown

Published on: February 14, 2014

Objectively discerning Autler-Townes splitting from electromagnetically induced transparency.

Petr M Anisimov¹, Jonathan P Dowling, Barry C Sanders

¹Hearne Institute for Theoretical Physics and Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA. petr@lsu.edu

Physical Review Letters

|November 24, 2011

Summary

Electromagnetically induced transparency (EIT) and Autler-Townes splitting (ATS) both cause transparency. We developed an objective method using Akaike

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Area of Science:

Quantum optics
Atomic physics
Superconducting circuits

Background:

Autler-Townes splitting (ATS) and electromagnetically induced transparency (EIT) both create transparency in absorption profiles.
Distinguishing EIT from ATS in experiments has been subjective.
EIT provides strong transparency with weak fields due to Fano interference, unlike ATS.

Purpose of the Study:

To introduce an objective method for differentiating EIT from ATS using experimental data.
To apply this method to analyze induced-transparency experiments in superconducting circuits.

Main Methods:

Utilized Akaike's information criterion for objective discrimination.
Analyzed experimental data from three-level atomic systems.
Applied the method to a superconducting-circuit quantum electrodynamics experiment.

Main Results:

Developed a statistically objective criterion to distinguish EIT from ATS.
Demonstrated the method's applicability to experimental data.
Provided a quantitative approach to analyze induced transparency phenomena.

Conclusions:

The Akaike's information criterion-based method offers an objective way to identify EIT versus ATS.
This approach enhances the analysis of quantum optical experiments.
Facilitates clearer interpretation of induced transparency in quantum systems.