Hermaphroditic liquid-crystal microlens

Hongwen Ren*, Janet R. Wu, Yun Hsing Fan, Yi-Hsin Lin, Shin Tson Wu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


We demonstrate a flat microlens that exhibits hermaphroditic focusing properties. When the input polarization is parallel (perpendicular) to the liquid-crystal directors, the lens exhibits a positive (negative) focal length. To select the proper polarization, we could rotate the polarizer (or the lens) mechanically or by use of an electrically controlled twisted nematic liquid-crystal cell. Details of the lens structure and of the device's fabrication and performance are described.

Original languageEnglish
Pages (from-to)376-378
Number of pages3
JournalOptics Letters
Issue number4
StatePublished - 15 Feb 2005

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