Bi-focal and negative microlens arrays in hard optical materials

E. Gu, H.W. Choi, C. Liu, I.M. Watson, J.M. Girkin, M.D. Dawson

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Using the methods of photoresist reflow and moulding, bifocal and negative microlens arrays, with diameters down to 10 μm, have been fabricated in GaN-on-sapphire. The optical properties of these microlens arrays were characterised by a recently developed reflection/transmission confocal microscopy technique and agree well with calculated values.
Original languageEnglish
Title of host publicationLasers and Electro-Optics Society, 2004. LEOS 2004
PublisherIEEE
Pages360-361
Number of pages1
Volume1
ISBN (Print)9780780385573
DOIs
Publication statusPublished - 11 Nov 2004

Keywords

  • gallium compounds
  • microlenses
  • moulding
  • optical arrays
  • optical fabrication
  • optical materials
  • photoresists
  • wide band gap semiconductors

Cite this

Gu, E., Choi, H. W., Liu, C., Watson, I. M., Girkin, J. M., & Dawson, M. D. (2004). Bi-focal and negative microlens arrays in hard optical materials. In Lasers and Electro-Optics Society, 2004. LEOS 2004 (Vol. 1, pp. 360-361). IEEE. https://doi.org/10.1109/LEOS.2004.1363260