Investigation and fabrication of palladium-copper composite layer as an adsorbent layer of tapered fiber optic hydrogen gas sensor Journal title: Applied Electromagnetics Authors: Mohammad Mohammadnezhad, Mohammadreza Zamani Meymian, Mohammad Vahedi Subject(s): Electrical and Electronic Engineering, Nuclear Magnetic Resonance, Antennas and Propagation, Lasers and Electro-optics, Power Systems, Biomaterials