3-D modulable PDMS-based microlens system

V. J. Cadarso, A. Llobera, G. Villanueva, C. Dominguez, J. A. Plaza

Research output: Contribution to journalArticleResearchpeer-review

13 Citations (Scopus)


The design, simulation, fabrication and characterization of 3-D modulable micro-optical system based on poly-dimethilsiloxane (PDMS) are presented in this paper. This system consists on two uncoupled PDMS lenses with different diameter (2 and 10 μm). Under stretching conditions, the dimensions of the small lens are not modified, whereas the geometry of the bigger lens is shifted from spherical to elliptical. A combination of different technologies is used to fabricate this microsystem: silicon, polymer and soft-lithography microfabrication techniques. This combination allows obtaining structures with a simple and mass production technology. Experimental results confirm the predicted numerical simulations, showing that, when the structure is under stretching conditions, the first focus is virtually invariable whereas the second focus becomes a Sturm zone.

Original languageEnglish
Pages (from-to)4918-4929
Number of pages12
JournalOptics Express
Issue number7
Publication statusPublished - 31 Mar 2008

Cite this