<p>The conversion of glasses into transparent glass-ceramic nanocomposites involves the complex challenge of balancing multiple competing factors such as the composition, size, and volume fraction of crystalline phases within a glass matrix. Especially, developing a singlet optical component with spatially varying properties, such as gradient refractive index (GRIN) materials, necessitates a new strategy on the scalable fabrication and multi-faceted characterization of glass-ceramics. Here, we employ Ge–As–Pb–Se chalcogenide glasses as a testbed and demonstrate a controlled crystallization strategy for their conversion into spatially tuned glass-ceramics. A first-ever combination of a simplistic yet widely applicable gradient thermal treatment and cross-correlating metrology is employed, creating scaled-up, minimally dispersive, and transparent GRIN materials with index gradients up to 0.1820 ± 0.0005. This work not only offers new insights into the complex crystallization behavior of glasses but also demonstrates a scalable approach to realizing spatially tailored monoliths, thus paving the way for practical optical applications.</p> Graphic abstract <p></p>

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Scalable manufacturing and multi-modal cross-correlating characterization of low-dispersion bulk gradient refractive index chalcogenide glass-ceramics

  • Gil B. J. Sop Tagne,
  • Zephyr G. Ramsey,
  • Lam Tran,
  • Alexander M. Teijeira,
  • Kathleen S. Matthies,
  • Jessica E. Lyza,
  • Patrick E. Lynch,
  • Cristian J. Cano,
  • Philip M. Marrero,
  • Roberto A. Alvarez-Aguirre,
  • Daniel Wiedeman,
  • Rashi Sharma,
  • Sarah Banker,
  • Christopher Kosan,
  • Nicholas S. Kochan,
  • Kathleen A. Richardson,
  • Steven A. Feller,
  • Rebecca S. Welch,
  • Scott T. Misture,
  • Darren M. Stohr,
  • Kun Wang,
  • S. K. Sundaram,
  • Myungkoo Kang

摘要

The conversion of glasses into transparent glass-ceramic nanocomposites involves the complex challenge of balancing multiple competing factors such as the composition, size, and volume fraction of crystalline phases within a glass matrix. Especially, developing a singlet optical component with spatially varying properties, such as gradient refractive index (GRIN) materials, necessitates a new strategy on the scalable fabrication and multi-faceted characterization of glass-ceramics. Here, we employ Ge–As–Pb–Se chalcogenide glasses as a testbed and demonstrate a controlled crystallization strategy for their conversion into spatially tuned glass-ceramics. A first-ever combination of a simplistic yet widely applicable gradient thermal treatment and cross-correlating metrology is employed, creating scaled-up, minimally dispersive, and transparent GRIN materials with index gradients up to 0.1820 ± 0.0005. This work not only offers new insights into the complex crystallization behavior of glasses but also demonstrates a scalable approach to realizing spatially tailored monoliths, thus paving the way for practical optical applications.

Graphic abstract