We recognize that the phase control of optical transfer function is profoundly important in realizing nanoimaging beyond the diffraction limit. The difficulty of the optical phase measurement in the near field, required for the conventional adaptive control method, motivates us to achieve active phase control in the superlens imaging system. The visibility and resolving capabilities are significantly enhanced through the index mismatch approach by tuning the wavelength of the incident light.
Bibliographical noteFunding Information:
The authors would like to thank S.-W. Bahk for his help on this research topic. This study was supported by the grants from the National R&D Program for Cancer Control, Ministry of Health & Welfare, Republic of Korea (Grant No. 0720170) and by KOSEF under Grant No. M10755020002-08N5502-00210.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)