Optical Sensors and Microsystems : New Concepts Materials Technologies Proceedings of the 22nd Course of the International School of Quantum Electronics held 27 November 2 December 1997 in Erice Italy. In recent years fiber optical sensors and optical microsystems have assumed a significant role in sensing and measurement of many kinds. These optical techniques are utilised in a wide range of fields including biomedicine environmental sensing mechanical and industrial measurement and art preservation. This volume an up to date survey of optical sensors and optical microsystems aims at combining a tutorial foundation with analysis of current research in this area and an extensive coverage of both technology and applications.