Published May 2009 | Version v1
Journal article

All-Optical Modulation with a Surface Plasmon Mach–Zehnder Interferometer

  • 1. State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871 (China)

Description

We use two parallel nano-slits in a silver film to form a surface plasmon Mach–Zehnder interferometer (MZI), based on the interference of two surface plasmon waves propagating along the two surfaces of the silver film. Coating the silver film with a photoinduced birefringence polymer film, we achieve optical modulation of the MZI output by changing the refractive index of the polymer film with a pump beam. An on/off ratio of 2.7 is obtained for a probe wavelength of 865 nm. (condensed matter: electronic structure, electrical, magnetic, and optical properties)

Availability note (English)

Available from http://dx.doi.org/10.1088/0256-307X/26/5/057302

Additional details

Publishing Information

Journal Title
Chinese Physics Letters
Journal Volume
26
Journal Issue
5
Journal Page Range
[3 p.]
ISSN
0256-307X
CODEN
CPLEEU