**About the Editor**

**Daan Lenstra** (Amsterdam, 1947) received an M.Sc. degree (Cum Laude) in theoretical physics from the University of Groningen and a Ph.D. degree from Delft University of Technology. His thesis work was on polarization effects in gas lasers. Since 1979, he has researched topics in quantum electronics, quantum optics and condensed matter physics, i.e., photon statistics in resonance fluorescence (1981–1983), coherent electron transport (1980–1990), resonant tunnelling (1986–1991), semiconductor diode lasers (1983-present), nonlinear dynamics in optical systems (1991–2008), analogies between optics and microelectronics (1988–1992), optical phase conjugation (1988-2000), near-field optics and plasmonics (2000–2006), and all-optical ultrafast signal processing (2001–2006). Daan Lenstra was associate professor at Delft University of Technology (1979–1984) and Eindhoven University of Technology (1984–1991). He was part-time professor at the University of Leiden (1989–1991) and took a chair professor position in theoretical quantum electronics at the Vrije Universiteit in Amsterdam from 1991 until 2006. During the period 2000–2002, Daan Lenstra has been a part-time guest professor at the COBRA Research Institute, Eindhoven University of Technology, and during 2002–2006 he was appointed part-time (0.5) Professor of Ultrafast Photonics at the same institute. He was Scientific Director of COBRA from 2004 to 2006. From 1 November 2006, he served as Dean of the Faculty of Electrical Engineering, Mathematics and Computer Science at Delft University of Technology until his early retirement in November 2010. Presently, Prof. Lenstra is affiliated with Eindhoven University of Technology as a Fellow of the Department of Electrical Engineering and since March 2014 as part-time professor. Daan Lenstra (co)authored more than 400 publications in international scientific journals. and conference proceedings. He (co)edited nine books.
