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3D printed gradient index glass optics.

Rebecca Dylla-Spears1, Timothy D Yee2, Koroush Sasan2

  • 1Lawrence Livermore National Laboratory, Livermore, CA, USA. dyllaspears1@llnl.gov.

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|November 19, 2020
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Summary
This summary is machine-generated.

We developed additive manufacturing to create gradient refractive index glass optics. This method uses 3D printing to tailor the refractive index profile in flat glass, enabling novel optical functions without surface curvature.

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Area of Science:

  • Materials Science
  • Optics
  • Additive Manufacturing

Background:

  • Gradient refractive index (GRIN) optics offer unique light manipulation capabilities.
  • Traditional GRIN optics fabrication is complex and limits design flexibility.
  • Additive manufacturing presents a novel approach for creating advanced optical components.

Purpose of the Study:

  • To demonstrate an additive manufacturing method for producing gradient refractive index (GRIN) glass optics.
  • To achieve tailored spatial profiles of refractive index in flat glass components.
  • To explore novel optical functions achievable with GRIN glass fabricated via 3D printing.

Main Methods:

  • Utilizing direct ink writing with an active inline micromixer for 3D printing.
  • Creating multimaterial green bodies with compositional gradients (silica nanoparticles and titania).
  • Consolidating printed green bodies into glass and subsequent polishing.

Main Results:

  • Successfully produced glass optics with controlled gradient refractive index profiles.
  • Demonstrated the ability to achieve desired refractive index distributions within flat glass.
  • Showcased the fabrication of optical components with no surface curvature but with tailored optical functions.

Conclusions:

  • Additive manufacturing provides a versatile platform for fabricating GRIN glass optics.
  • This technique enables the creation of flat optical components with complex, spatially varying refractive indices.
  • The developed approach opens possibilities for new optical designs and functionalities in various applications.