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1 August 1990 Intrinsic optical bistability of structured nanoparticle composites
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Proceedings Volume 1280, High Speed Phenomena in Photonic Materials and Optical Bistability; (1990)
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands
We report here intrinsic optical bistability calculations for structured nanoparticle composites, ie. particles consisting of one or more coatings of different materials. The bistability is based on the nonlinear field dependence of the plasmon resonance introduced through the nonlinear component. The single shell structured nanosphere model consists of a nonlinear organic or semiconductor core with a metallic shell; and the two shell model has a metallic core, nonlinear dielectric shell and metallic second shell. The metals examined are Ag or Osmium, the nonlinear dielectrics are PDA, Si, GaAs, InSb and the host medium is water or a glass. Calculations show that the switching power level for intrinsic bistability can be reduced in the one spherical shell nanosphere composite to less than 1 MW/cm2 with no loss in the speed of response. In the two shell model, power levels for onset of bistability can be 1 kW/cm2. CdS with a silver coating has a threshold of 12 W/cm2, when an ellipsoidal shaped particle is used.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Meyer H. Birnboim, Wei Ping Ma, Joseph W. Haus, Nauzer Kalyaniwalla, and Ramarao Inguva "Intrinsic optical bistability of structured nanoparticle composites", Proc. SPIE 1280, High Speed Phenomena in Photonic Materials and Optical Bistability, (1 August 1990);

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