Optics and Photonics Society of Iran

In this research, a random array of silver nanostructures had been grown with glancing angle deposition method on the surface of substrate. The deposition was done at 86o, 84o and 82o. The effects of incident vapor angle on the morphology, plasmonic properties and sensing sensitivity of deposited nanostructures were investigated. The results show that the size of nanoparticles grows with decreasing the angle of incident vapor. In addition decreasing of the incident vapor angle leads to the narrowing of the plasmonic peak and increasing of the sensitivity of fabricated silver nanostructures. At the end the sensitivity of 141nm/RIU was obtained for deposited nanostructures at 82o which is suitable for sensing applications.