Emergent Mid‐Infrared Nonlinear Optical Candidates With Targeted Balance Performances

Infrared nonlinear optical (NLO) crystal materials exert a crucial role in laser technology, which is extensively utilized in the fields of medical laser, long‐distance laser communication, infrared laser guidance, etc. Currently, the commercially available infrared NLO crystals are diamond‐like str...

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Vydáno v:Small (Weinheim an der Bergstrasse, Germany) Ročník 21; číslo 6; s. e2409997 - n/a
Hlavní autoři: Huang, Junben, Abudurusuli, Ailijiang, Yang, Zhihua, Pan, Shilie
Médium: Journal Article
Jazyk:angličtina
Vydáno: Germany Wiley Subscription Services, Inc 01.02.2025
Témata:
Chalcogenides
Crystal structure
emergent infrared NLO candidates
Energy gap
Group 5A compounds
Heavy metal oxides
Heavy metals
Infrared lasers
Laser damage
Laser guidance
Lasers
Literature reviews
Medical materials
Metal halides
Metal oxides
Nitrides
Nonlinear optics
Oxyhalides
Silver gallium sulfide
structure‐property survey
targeted balance performances
structure‐property survey
nonlinear optics
targeted balance performances
emergent infrared NLO candidates
ISSN:1613-6810, 1613-6829, 1613-6829
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Shrnutí:Infrared nonlinear optical (NLO) crystal materials exert a crucial role in laser technology, which is extensively utilized in the fields of medical laser, long‐distance laser communication, infrared laser guidance, etc. Currently, the commercially available infrared NLO crystals are diamond‐like structural crystals AgGaQ2 (Q = S, Se) and ZnGeP2. However, their applications are significantly limited owing to their inherent drawbacks, such as low laser damage thresholds and narrow band gaps. Therefore, exploring novel infrared NLO materials with excellent performances is urgent. At present, candidate systems for exploring infrared NLO materials mainly are chalcogenides, pnictides, metal halides for popular systems, and chalcohalides, oxyhalides, heavy metal oxides, oxychalcogenides, nitrides for emergent systems. Notably, among them, pnictides generally exhibited a stronger NLO performance than other systems, but a narrower band gap. Accordingly, after the detailed literature survey, to the best knowledge, ≈139 compounds achieve balanced performances (Eg ≥ 3.0 eV, dij ≥ 0.5 × AgGaS2) in the remaining systems, in which there are 2 metal halides, 9 oxyhalides, 10 heavy metal oxides, 17 nitrides, 19 oxychalcogenides, 22 chalcohalides, and 60 chalcogenides. Thus, the structure‐property survey of these compounds produces the practical design strategy to explore emergent infrared NLO crystal materials with balanced properties. Summarized the systems of research utilized in recent years to explore infrared nonlinear optical materials, which includes chalcogenides, metal halides, oxyhalides, heavy metal oxides, oxychalcogenides, chalcohalides, and nitrides. Remarkably, nitrides as an emergent infrared NLO candidate with wide band gap, large NLO coefficients, and high thermal conductivity deserve further study.
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ISSN:1613-6810
1613-6829
1613-6829
DOI:10.1002/smll.202409997