25th Annual Student Research Conference
Surface Plasmon Resonance at Metal-Dielectric Interface
Nabin Khadka
Dr. Mohammad Samiullah, Faculty Mentor
Surface plasmon resonance is an electromagnetic phenomenon due to the interaction of light with free electrons at a metal-dielectric interface. Under certain conditions, the energy of photons of light is transferred to collective excitations of free electrons, called surface plasmon, at the interface. Surface plasmon phenomenon can be used as sensitive bio-sensors, thin film metrology tools, and many other applications. We have derived dispersion relation for surface plasmon waves at metal-dielectric interface and working on verifying the predictions of the theory through a simple experiment on silver/glass interface proposed by Kretschmann. In this setup, surface plasmon waves are excited by the evanescent waves present in the total reflection for transverse magnetic polarized light with a unique angle. We will be conducting the experiment this semester.
Keywords: surface plasmon
Topic(s):Physics
Presentation Type: Oral Paper
Session: 306-3
Location: MG 1096
Time: 1:30