Optics has become one of the most dynamic fields of science since the first volume published over 50 years ago. The volumes in this series that have appeared up to now contain more than 300 review articles by distinguished researchers, and have become permanent records for many important developments. They have helped optical scientists and optical engineers stay abreast of their fields, and there is no sign that developments in optics are slowing down or becoming less interesting as the field progresses. About the editor: Taco Visser, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands Impact Factor 2017: 5.545 (Copyright ISI Journal Citation Report) Top 10 ranking within the Optics category. To view individual chapters for Progress in Optics, please visit Science Direct. Praise for the Series: "No volume of Progress in Optics needs a long review: you just need to know that a new one has appeared and to make sure your librarian has a standing order." - APPLIED OPTICS If you have an idea for a topic for future volumes, or if you wish to be considered as an author for a chapter, please contact Jason Mitchell, Acquisitions Editor: ja.mitchell@elsevier.com