.................................................................................................................................... 4 1 Hydrogen bonding ............................................................................................................... 7 1.1 The nature of the hydrogen bond ................................................................................... 7 1.2 Sub...

A gas sensor based on correlation spectroscopy using a FPI with long cavity length (>500 μm) as a modulator is presented. Eventually the FPI and the optical detector will be integrated within a MEMS structure. ©2005 Optical Society of America OCIS codes: (220.4830) Optical systems design; (120.4640) Optical instruments; (120.4570) Optical design of instruments