Optical MEMS (micro-electro-mechanical systems) devices have been used in a variety of applications including fiber-optic communications, projection TVs and in biomedical imaging. MEMS-based spatial light modulators (SLM) provide a compact, large scale, and cost-effective solution to these and other applications. In this book, we introduce the design and fabrication of SLMs for three such applications; coherent communication, adaptive optics and maskless lithography. This book should help not only those engineers working on these applications but in other fields, such as biomedical imaging,...