Nanoparticles waveguide

Krenn, J. R. [2003] Nanoparticle waveguides Watching energy transfer, Nat. Mater., 2, 210-211. 

Schmidt, B. Almeida, V. Manolatou, C. Preble, S. Lipson, M., Nanocavity in a silicon waveguide for ultrasensitive nanoparticle detection, Appl. Phys. Lett. 2004, 85, 4854 4856... 

Cummins CM, Koivunen ME, Stephanian A, Gee SJ, Hammock BD, Kennedy IM (2006) Application of europium(III) chelate-dyed nanoparticle labels in a competitive atrazine fluoroimmunoassay on an ITO waveguide. Biosens Bioelectron 21 1077-1085... 

Gold Nanoparticles on Waveguides For and Toward Sensing Application... 

Keywords Optical waveguides Optical fibers Thin gold layers Gold nanoparticles Photonic crystals Sensors... 

These fundamental works and discoveries have stimulated an avalanche of investigations on metal nanoparticles in the gas phase, in solution, and on surfaces [43]. In this chapter, the focus will be on nanoparticles on surfaces and, in particular, on gold nanoparticles (AuNPs) on waveguides, both planar strucmres and fibers, as well as photonic crystals with the aim of sensor application. 

Nakanishi T, Takada H, lida H et al (2008) Immobilization of gold nanoparticles on optical waveguides with organosilane monolayer. Colloids and Surfaces A - Physiocochemical and Engineering Aspects 331-314 234—238... 

Hojjati H, Jiang H, Manifar T et al (2008) Photonic Crystal formation by regular pattern of gold nanoparticles within the evanescent field of a slab glass waveguide, in preparation... 

Jiang H, Manifar T, Sabarinathan J, Mittler S (2009) 3-D FDTD Analysis of gold nanoparticle based photonic crystal on slab waveguide. J Lightwave Technol 27(13) 2264—2270... 

In this study, a two-dimensional FDTD is performed to simulate the optical field on the metallic nanorod. This method also saves calculation time. In calculating the optical field on a nanoparticle, three-dimensional FDTD should be performed. In this case, the SP excited by both TE and TM modes of the waveguide can be studied. However, PC cluster should also be used to have enough memory to launch the simulation. 

Q is the main ctor to predict the output signal of the LSPCF. Several parameters can tune the value of Q, such as wavelength, diameter of nanoparticle, shape of the nanoparticle, metal type of the nanoparticle, distance between the nanoparticle and the waveguide, polarization, and so on. A detailed and more thorough study using three-dimensional FDTD can prove helpliil in choosing the experimental parameters that can obtain higher detection sensitivity. 

---