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Updated: Feb 2, 2026
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Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
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Component-resolved bleaching correlation between OSL and IRSL signals in various geological materials
V Angeli1, G Kitis1, G S Polymeris2
1Aristotle University of Thessaloniki, Nuclear Physics Laboratory, 54124 Thessaloniki, Greece.
Summary
This study explores the relationship between optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL) in geological materials. It investigates how infrared stimulation affects OSL signals, providing insights into luminescence dating techniques.
Area of Science:
- Geochemistry
- Geochronology
- Luminescence Dating
Background:
- Optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL) are crucial geochronological tools.
- Understanding the interplay between different luminescence signals is vital for accurate dating.
Purpose of the Study:
- To establish a qualitative and quantitative correlation between OSL and IRSL signals.
- To investigate the influence of infrared stimulation on the OSL signal in geological materials.
Main Methods:
- Utilized a two-step stimulation protocol involving infrared (IR) stimulation followed by continuous wave OSL.
- Analyzed K-feldspar (microcline), Durango apatite (nano-scale fractions), and gypsum.
- Applied component-resolved analysis to fit IRSL and OSL decay curves using established recombination models.
Main Results:
- Demonstrated a correlation between OSL and IRSL signals in the studied geological samples.
- Quantified the influence of IR stimulation duration on the OSL signal.
- Successfully deconvoluted luminescence signals based on physical meaningfulness of components.
Conclusions:
- The study provides a framework for understanding coupled OSL-IRSL signals in geological materials.
- Findings contribute to refining luminescence dating methodologies.
- Component-resolved analysis aids in accurate interpretation of luminescence data.
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