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Updated: Jul 9, 2026
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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Polariton local states in periodic Bragg multiple-quantum-well structures
L I Deych1, A Yamilov, A A Lisyansky
1Department of Physics, Seton Hall University, South Orange, New Jersey 07079, USA.
Optics Letters
|December 11, 2007
Summary
Defects in Bragg multiple-quantum-well structures create two local polariton modes within the photonic bandgap, altering optical properties. These findings offer guidance for experimental observation of these unique spectral effects.
Area of Science:
- Optics
- Condensed Matter Physics
- Materials Science
Background:
- Bragg multiple-quantum-well structures are crucial for controlling light-matter interactions.
- Defects in such structures can significantly modify their optical properties.
- Understanding these modifications is key for developing advanced photonic devices.
Purpose of the Study:
- To analytically investigate the optical properties of defects in Bragg multiple-quantum-well structures.
- To identify the impact of single defects on local polariton modes.
- To provide recommendations for experimental verification.
Main Methods:
- Analytical study of optical properties.
- Investigation of defect-induced changes in photonic bandgaps.
- Analysis of reflection and transmission spectra.
Main Results:
- A single defect introduces two local polariton modes within the photonic bandgap.
- These modes cause distinct features in reflection and transmission spectra.
- The study elucidates the relationship between defect type and spectral peculiarities.
Conclusions:
- The presence of defects fundamentally alters the optical response of Bragg multiple-quantum-well structures.
- Local polariton modes are a direct consequence of structural defects.
- The findings facilitate the experimental observation and potential application of defect-induced optical phenomena.
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