Related Experiment Video
Updated: Apr 3, 2026

Gradient Echo Quantum Memory in Warm Atomic Vapor
Published on: November 11, 2013
Electromagnetically induced absorption in a nondegenerate three-level ladder system
We studied light transmission through atomic vapor using two control fields. Our findings confirm the prediction of electromagnetically induced absorption in a three-level atomic system.
Area of Science:
- Atomic physics
- Quantum optics
Background:
- Light-atom interactions are fundamental to quantum optics.
- Controlling light propagation through atomic media is crucial for applications like quantum information processing.
Purpose of the Study:
- To investigate light transmission through a three-level ladder-type atomic system.
- To theoretically and experimentally explore electromagnetically induced absorption (EIA).
Main Methods:
- Theoretical modeling of light-atom interactions in a three-level system.
- Experimental setup using Rubidium-87 (87Rb) vapor in a strong magnetic field (0.62 T).
- Achieving the hyperfine Paschen-Back regime to create a nondegenerate three-level system.
Main Results:
- A theoretical model predicted electromagnetically induced absorption (EIA) under resonant control field conditions.
- Experimental observations successfully verified the theoretical predictions.
- The phenomenon was confirmed across a broad range of optical frequency detunings.
Conclusions:
- Electromagnetically induced absorption (EIA) can be observed in a pure three-level ladder-type atomic system.
- The hyperfine Paschen-Back regime in Rubidium-87 provides a suitable experimental platform for studying EIA.
- This work validates theoretical predictions and offers insights into coherent light-matter interactions.
More Related Videos
07:24Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
Published on: April 14, 2020
11:33All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
Published on: January 19, 2018
Related Concept Videos
Deactivation Processes: Jablonski Diagram
UV–Vis Spectroscopy: Molecular Electronic Transitions
Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
Atomic Nuclei: Nuclear Relaxation Processes
Bewley Lattice Diagram
The de Broglie Wavelength