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Novel van der Waals Deep-UV Nonlinear Optical Materials.

Lei Kang1, Zheshuai Lin1

  • 1Beijing Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|September 10, 2021
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Summary

Van der Waals (vdW) deep-UV (DUV) nonlinear optical (NLO) crystals are a new material class. This review covers their development, focusing on A-site cations and dimensional structures, and evaluates their NLO performance.

Keywords:
deep-ultraviolet lightfirst-principles calculationnonlinear optical materialvan der Waals interactions

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Area of Science:

  • Materials Science
  • Optics
  • Solid State Chemistry

Background:

  • Van der Waals (vdW) interactions are crucial in designing novel materials.
  • Deep-Ultraviolet (DUV) nonlinear optical (NLO) materials are essential for various photonic applications.
  • Recent advancements have focused on developing DUV NLO crystals incorporating vdW gaps.

Purpose of the Study:

  • To review the concept and development of Van der Waals (vdW) deep-UV (DUV) nonlinear optical (NLO) crystals.
  • To summarize the discovery process, highlighting the role of A-site cations and dimensional structures.
  • To evaluate the practical DUV NLO performance and future prospects.

Main Methods:

  • Literature review of recently developed vdW DUV NLO materials.
  • Analysis of the structural characteristics, particularly the influence of A-site cations.
  • Evaluation of reported DUV NLO coefficients and performance metrics.

Main Results:

  • Identification of two-/one-dimensional vdW DUV NLO systems based on A-site cation engineering.
  • Demonstration of the correlation between crystal structure and NLO properties.
  • Assessment of the potential and limitations of current vdW DUV NLO materials.

Conclusions:

  • vdW DUV NLO crystals represent a promising new frontier in NLO material science.
  • Further research is needed to optimize performance and overcome challenges for practical applications.
  • The rational design based on A-site cations and dimensional control is key for future discoveries.