Hans Zappe is the Gisela and Erwin Sick Chair of Micro-optics at the University of Freiburg, and an internationally recognised teacher and researcher in micro-optics. He has twenty-five years' experience working on optical microsystems, integrated optics and semiconductor lasers and has previously authored three textbooks. Claudia Duppé is the former Administrative Program Manager of the DFG Priority Program 'Active Micro-optics' at the University of Freiburg. She holds a PhD in New Zealand literature and has focussed professionally on academic communication and science management. She is presently Head of Communication and Networking at the Catholic University of Applied Sciences, Freiburg.

• Part I. Introduction: 1. Tunable micro-optics Hans Zappe; 2. Tunable optics in nature Robert Brunner and Erik Förster; Part II. Devices and Materials: 3. Soft matter micro-optics Wolfgang Mönch; 4. Tunable reflective optics David Dickensheets; 5. Tunable liquid lenses J. Andrew Yeh and Yen-Sheng Lu; 6. Optofluidic micro-shutters and micro-irises Philipp Müller; 7. Solid-body elastomeric lenses Sebastian Petsch, Peter Liebetraut and Hans Zappe; 8. Spatially tunable polarization devices Frederik Schaal, Michael Rutloh, Susanne Weidenfeld and Wolfgang Osten; 9. Aluminum nitride and diamond membranes for tunable micro-optics Daniel Pätz, Steffen Leopold, Verena Zürbig, Fabian Knöbber, Oliver Ambacher, Martin Hoffman, Vadim Lebedev and Stefan Sinzinger; 10. Piezoelectrically actuated tunable microlenses Jan Draheim and Ulrike Wallrabe; Part III. Systems and Applications: 11. Characterization of micro-optics Heidi Ottevaere, Lien Smeesters and Hugo Thienpont; 12. Photonic crystals Olav Solgaard and Xuan Wu; 13. MEMS scanners for OCT applications Hiroshi Toshiyoshi, Keiji Isamoto and Changho Chong; 14. Liquid crystal elastomer micro-optics Sebastian Petsch, Richard Rix, Stefan Schuhladen, Rudolf Zendel and Hans Zappe; 15. Adaptive scanning micro-eye Daniel Pätz, Stefan Sinzinger, Steffen Leopold, Martin Hoffmann, Verena Zürbig, Oliver Ambacher, Vadim Lebedev, Tobias Deutschmann and Egbert Oesterschulze; 16. Hyperspectral eye Robert Brunner, Erik Förster, Ulrike Wallrabe, Moritz Stürmer, Mohammad Abdo, Jan G. Korvink, Patrick Bohnert, Benjamin Ryba, Kaustubh Banerjee and Stefan Schuhladen; 17. Plenoptic cameras Andreas Tünnermann, Alexander Oberdörster, Frank Wippermann, Sylvia Gebhardt, Bernhard Bramlage, Dörthe Ernst, Henning Fouckhardt, Carina Heisel, Christina Kimmle, Johannes Strassner, Dominic Palm, Felix Paries and Ben Bockwinkel.

'… a valuable and up-to-date collection of contributions orienting the researcher in the ample field of micro-optics. It would be useful for informing new design choices and ways to tap the capabilities of this new technology.' Silvano Donati, Optics and Photonics News