Self-imaging and caustics in two-dimensional surface plasmon optics

✍ Scribed by Gabriel Martinez Niconoff; J.A. Sanchez-Gil; Hector Hugo Sanchez; A. Perez Leija

• Book ID: 103873523
• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 395 KB
• Volume: 281
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2007.11.056

✦ Synopsis

We study theoretically the surface plasmon electromagnetic field in the plane of the interface along which it propagates. Arbitrary surface plasmon fields are expressed by a linear superposition of elementary surface plasmon modes, thus obtaining an expression for the inplane components similar to the angular spectrum model, which establishes the formal foundations of a two-dimensional surface plasmon optics. From this representation, we obtain the general description for surface plasmon modes be having as in-plane diffraction free beams. These new modes with their corresponding phase parameters are used to study surface plasmon self-imaging phenomenon and the synthesis of surface plasmon singularity regions (caustics) of surface plasmon fields, proposing experimental means to observe both.