Patent ID: 7667819

Claim:
A lithography system comprising: an array of focusing elements for directing focused illumination toward a recording medium; a reversible contrast-enhancement material being disposed between said recording medium and said army of focusing elements; and a primary illumination source for providing illumination having a first wavelength for imaging in said recording medium, and a secondary illumination source that selectively provides secondary illumination toward said reversible contrast-enhancement material for facilitating relaxation of said reversible contrast-enhancement material, wherein the relaxation of the reversible contrast-enhancement material is assisted by illumination at a second wavelength that is different than the first wavelength, and wherein said first wavelength and second wavelength simultaneously illuminate the reversible contrast-enhancement material, said first wavelength illuminating a limited portion of the reversible contrast-enhancement material, said second wavelength illuminating an overlapping region of said reversible contrast-enhancement material and having within said overlapping region a smaller region of minimum intensity, the second wavelength converts the reversible contrast-enhancement material from a first state that is substantially transparent to the first wavelength, to a second state that is substantially opaque to the first wavelength.