Patent ID: 11885979
Assignee: UNIVERSITY OF MARYLAND, COLLEGE PARK
Field: Surface technology, coating (Chemistry)
Classification: CPC G  C | IPC C  G

Claim 0:
1. A method for fabricating a structured electromagnetic metasurface containing a sub-wavelength-scaled surface pattern, the method comprising:
in an atomic layer deposition (ALD) chamber, conformally filling an open volume formed in a patterned layer of a resist material with a target material with the use of an ALD process conducted at a temperature not exceeding 105° C. to define a material preform, the target material being devoid of any of silicon, titania, gallium nitride, and niobium pentoxide; and
removing the resist material with a solvent to expose the sub-wavelength-scaled pattern structure of the target material, wherein the pattern structure is dimensioned to operate as at least one of refractive, diffractive, birefringent, and resonant optical elements at a wavelength defined in a deep-UV range of an electromagnetic spectrum.