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New nonlinear optical (NLO) materials are emerging for deep-ultraviolet (deep-UV) lasers. This review covers recent advances in NLO crystals for deep-UV harmonic generation, aiding future high-performance material discovery.

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Area of Science:

  • Materials Science
  • Optics
  • Solid State Physics

Background:

  • Advances in deep-ultraviolet (deep-UV) coherent laser generation drive demand for suitable nonlinear optical (NLO) materials.
  • Existing NLO crystals struggle to meet technical requirements for deep-UV phase-matching.

Purpose of the Study:

  • To provide a comprehensive overview of emergent deep-UV NLO materials.
  • To discuss recent efforts and advances in discovering superior NLO systems.
  • To accelerate the development of high-performance deep-UV NLO candidates.

Main Methods:

  • Review of recent scientific literature on deep-UV NLO materials.
  • Analysis of structure-property relationships in novel NLO crystals.
  • Identification of emergent NLO material candidates and their characteristics.

Main Results:

  • Several new NLO crystals with potential for deep-UV harmonic generation have emerged.
  • Novel NLO-active units and chromophores are key to developing these advanced materials.
  • Understanding structure-property relationships is crucial for optimizing NLO material performance.

Conclusions:

  • The field of deep-UV NLO materials is rapidly advancing with promising new candidates.
  • Continued research into novel crystal structures and compositions is essential.
  • Accelerated discovery of high-performance materials is critical for meeting technological demands.