A new method to rationally design and fabricate silica ridge optical waveguides in a simple, cost-effective manner has been developed by researchers from the Republic of Korea and USA.
This new method is based on the controlled evaporative self-assembly of a polymer solution constrained in a cylinder-on-flat geometry with subsequent wet and dry etching of the sacrificial Ni–Cr film, polymer template and silica layer. Waveguides made in such a way may find potential applications as optical sensors.
Interested to know more? Why not read the full article for free: S. W. Kwon, M. Byun, D. H. Yoon, J.-H. Park, W.-K. Kim, Z. Lin and W. S. Yang, J. Mater. Chem., 2011, DOI: 10.1039/C0JM04514D (Advance Article)
