Patterned PCF Containing Disordered Suspended Particles in Hollow Core–An Innovative Platform for Optofluidic Sensing

The unique and striking characteristics of the photonic crystal fiber (PCF) with patterned dielectric rods have been reported for last decades, providing applications in the field of prototype sensors and more recently in optofluidic sensing. The proposed PCF sensor contains an empty core injected with disordered suspended particles (such as Cs2, CCl4, C6H6) surrounded by n-type solid semiconductor material (P2O5-doped silicate) and suspended plasma dielectric rods. The effect of intensity of field and concentration of doped semiconductor material on band structure has been analyzed, respectively, by using the plane wave expansion method. The sensitivity of PCF towards various analytes has been measured by the change in the band structure. The results reported in this work are very useful for constructing an optoelectronic device, useful in medical science and ultrahigh-band width signal processing.

Embedding liquid lasers within or around aqueous microfluidic droplets

We demonstrate the incorporation of dye-based liquid lasers within or around flowing aqueous microfluidic droplets, which make them capable of on drop optofluidic sensing.