This graduate-level textbook presents the principles, design methods, simulation, and materials of photonic circuits. It provides state-of-the-art examples of silicon, indium phosphide, and other materials frequently used in these circuits, and includes a thorough discussion of all major types of devices. In addition, the book discusses the integrated photonic circuits (chips) that are currently increasingly employed on the international technology market in connection with short-range and long-range data communication. Featuring references from the latest research in the field, as well as chapter-end summaries and problem sets, Principles of Photonic Integrated Circuits is ideal for any graduate-level course on integrated photonics, or optical technology and communication.

For those that survive, the traumas of military conflict can be long lasting. It might seem astonishing that archaeology, with its uncovering of the traces of the long-dead, of battlefields, of skeletal remains, could provide solace, and yet there is something magical about the subject. Operation Nightingale is a programme set up in 2011 within the Ministry of Defence of the United Kingdom to help facilitate the recovery of armed forces personnel recently engaged in armed conflicts in Afghanistan and Iraq, using the archaeology of the British Training Areas. In the following decade, the project expanded to include veterans of older conflicts and of other nations - from the United States, from Poland, from Australia and elsewhere. In archaeology there is a job for everyone; from surveying and drawing, to examining the finds, to digging itself. Often this is in some of the most beautiful and restful of landscapes and with talks around a campfire at the end of the day. This book is the story of those veterans, of their incredible discoveries, of their own journeys of recovery - and sometimes into a lifetime of archaeology. From the crash sites of Spitfires and trenches of the Western Front in the First World War, through to burial grounds of Convicts, camp sites of Hessian mercenaries, and Anglo-Saxon cemeteries. Lavishly illustrated, this work will show the reader how the discovery of our shared past - of long-forgotten houses, of glinting gold jewellery, of broken pots, can be restorative and help people mend otherwise damaged lives.

The Bronze Age, so named because of the technological advances in metalworking and countless innovations in the manufacture and design of tools and weapons, is among the most fascinating periods in human history. Archaeology has taught us much about the way of life, habits and homes of Bronze Age people, but as yet little has been written about warfare. What was Bronze Age warfare like? How did people fight and against whom? What weapons were used? Did they fortify their settlements, and, if so, were these intended as defensive or offensive structures? This detailed and fully illustrated study of warfare in Bronze Age Europe, aims to answer these and many other questions.

Warfare has often been mentioned as a characteristic of Urnfield cultures in Late Bronze Age Europe but the nature of this conflict has not been studied in detail. Based on a survey of the literature and on a study of Bronze Age arms in the Ashmolean Museum, this book fills that gap.