We report that the diffraction limit of conventional optical lithography can be overcome by exploiting the transitions of organic photochromic derivatives induced by their photoisomerization at low light intensities.1-3 This paper outlines our fabrication technique and two locking mechanisms, namely: dissolution of one photoisomer and electrochemical oxidation.
Cantu, P., Andrew, T. L., Menon, R. Patterning via Optical Saturable Transitions - Fabrication and Characterization. J. Vis. Exp. (94), e52449, doi:10.3791/52449 (2014).