What is it about?
Modern laser technologies require infrared radiation within the 4–5 micron (atmospheric transparency window). However, this range is most efficiently excited using 1.5–2 micron diode and fiber laser pump sources. To bridge this gap, we proposed combining multiple active ions within a single laser crystal. We have successfully grown a series of such ZnSe-based crystals and conducted a detailed study of their crystallographic and physical properties.
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Why is it important?
We believe that the R&D of codoped zinc selenide/sulfide single crystals will provide deeper insights into the complex physics of these media and unlock new possibilities for advanced practical applications.
Perspectives
Zinc selenide crystals codoped with transition metal ions hold the potential for a breakthrough in mid-IR laser physics and photonics.
Sergei Naydenov
Institute for Single Crystals of the National Academy of Sciences of Ukraine
Read the Original
This page is a summary of: Crystal growth, structure and infrared absorption of co-doped (Cr, Co, Fe):ZnSe single crystals, Acta Crystallographica Section B Structural Science Crystal Engineering and Materials, April 2026, International Union of Crystallography,
DOI: 10.1107/s2052520626000673.
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