Three-dimensional printing of glass micro-optics

Zhihan Hong, Piaoran Ye, Douglas A. Loy, Rongguang Liang

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


To meet the increasing needs of high-precision glass micro-optics and address the major limitations of current threedimensional (3D) printing optics,we have developed a liquid, solvent-free, silica precursor and two-photon3Dprinting process. The printed optical elements can be fully converted to transparent inorganic glass at temperatures as low as 600Cwith a shrinkage rate of 17%.We have demonstrated the whole process, frommaterial development, printing, and performance evaluation of the printed glass micro-optics. 3D printing of glass micro-optics with isotropic shrinkage, micrometer resolution, lowpeak-To-valley deviation (>100 nm), and lowsurface roughness (>6 nm) has been achieved. The reported technique will enable the rapid prototyping of complex glass micro-optics previously impossible using conventional glass optics fabrication processes.

Original languageEnglish (US)
Pages (from-to)904-910
Number of pages7
Issue number6
StatePublished - Jun 20 2021

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics


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