Microlenses fabrication on glass by combining laser with thermal-reflow technique

Daniel Nieto, Justo Arines, Carlos Gomez-Reino, Gerard M. O'Connor, M. Teresa Flores-Arias

Research output: Chapter in Book or Conference Publication/ProceedingConference Publicationpeer-review

1 Citation (Scopus)

Abstract

We describe a hybrid technique for fabricating microlens arrays on soda-lime glass substrates composed by a direct-laser write and post thermal treatment. In particular we use a nanosecond Q-Switch Nd: YVO4 laser and a mufla Heraeus furnace. Temperature dependence of the reflowing process was analyzed in the range of 620°C-670°C. An improvement in the optical quality of the microlens arrays were obtained as temperature increases. The best microlens array was obtained at 670°C with the following characteristics: diameter 47.89±6.65μm; focal length 510±10μm; and focal spot size 2.82±0.02μm. The presented technique has been shown to be capable of fabricating low cost microlens arrays with good optical quality.

Original languageEnglish
Title of host publication22nd Congress of the International Commission for Optics
Subtitle of host publicationLight for the Development of the World
DOIs
Publication statusPublished - 2011
Event22nd Congress of the International Commission for Optics: Light for the Development of the World - Puebla, Mexico
Duration: 15 Aug 201119 Aug 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8011
ISSN (Print)0277-786X

Conference

Conference22nd Congress of the International Commission for Optics: Light for the Development of the World
Country/TerritoryMexico
CityPuebla
Period15/08/1119/08/11

Keywords

  • Lasers ablation
  • Microlenses array
  • Optical design and fabrication

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