Orbital angular momentum of photons is explored to study the spatial mode properties of the plasmon-assisted transmission process. We found that photons carrying different orbital angular momenta have different transmission efficiencies, while the coherence between these spatial modes can be preserved.
© 2006 Optical Society of America
Optics at Surfaces
Original Manuscript: March 13, 2006
Manuscript Accepted: June 21, 2006
Published: August 25, 2006
Xi-Feng Ren, Guo-Ping Guo, Yun-Feng Huang, Zhi-Wei Wang, and Guang-Can Guo, "Spatial mode properties of plasmon-assisted transmission," Opt. Lett. 31, 2792-2794 (2006)