Light confinement in liquid crystals for optofluidic integrated microsystems -INVITED

In this paper technology to make optical waveguides and microfluidic channels integrated on the same substrate will be reported envisage novel micro-optofluidic chips. PolyDiMethylSiloxane (PDMS) is used microchannels filled with biological solutions. Liquid crystals (LC) are confine light produce interaction fluidic specimen. Optical base PDMS LC, named LC:PDMS waveguides, including both straight bending design photonic devices. Electro-optic effect of LC allows tuneable reconfigure entire optofluidic microsystem which can include gold nanoparticles for photo-thermal therapies. Coplanar electrodes switch molecules applied voltage about 2 V. Such electrode configuration switches wavelengths demultiplexers. A zero-gap directional coupler based has been designed from one waveguide another an extinction ratio 16 dB by applying a just 1.62 multimode interference demultiplexer also demultiplex at 980 nm 1550 in two output better than 11 7