Thin film Ag superlens towards lab-on-a-chip integration

C. Jeppesen, R. B. Nielsen, A. Boltasseva, S. Xiao, N. A. Mortensen, A. Kristensen
2009 Optics Express  
A thin metal film near-field superlens, as originally suggested by Pendry and realized by Fang et al. and Melville et al., is investigated with emphasis on materials suitable for integration on a lab-on-a-chip platform. A chemically resistant cyclo-olefin copolymer (COC), mr-I-T85 from microresist technology, is applied as dielectric matrix/spacer for an Ag thin film superlens. The superlens successfully resolves 80 nm half-pitch gratings when illuminated with UV radiation at a free space
more » ... ngth of 365 nm. The superlens design, fabrication and characterization is discussed.
doi:10.1364/oe.17.022543 pmid:20052179 fatcat:zf2vjb2w3barrdzwiuqodgrj4y