Electron beam lithography was used to fabricate gold crescent shaped split-ring resonators with 30 nm minimum feature size. By varying the crescent’s arc length over a range of nanometer-scale dimensions the authors demonstrate the tuneability of visible resonances within such structures. Results, which correlate closely with those predicted using finite-difference time-domain modeling, open the way for these devices to be used in near-field biological sensing.
- electron beam lithography
- surface plasmon resonance
- visible resonances
- crescent shaped
Clark, A. W., Sheridan, A. K., Glidle, A., Cumming, D. R. S., & Cooper, J. M. (2007). Tuneable visible resonances in crescent shaped nano-split-ring resonators. Applied Physics Letters, 91(9), . https://doi.org/10.1063/1.2772180