title: Focusing light in a curved-space.
abstract: We use transformation optics to demonstrate 2D silicon nanolenses, with wavelength-independent focal point. The lenses are designed and fabricated with dimensions ranging from 5.0 microm x 5.0 microm to 20 microm x 20 microm. According to numerical simulations the lenses are expected to focus light over a broad wavelength range, from 1.30 mum to 1.60 mum. Experimental results are presented from 1.52 microm to 1.61 microm.
authors.affiliation: Department of Electrical and Computer Engineering, Cornell University, Ithaca, NY 14853, USA.
authors.forename: Danilo H
authors.initials: DH
authors.lastname: Spadoti
authors.forename: Lucas H
authors.initials: LH
authors.lastname: Gabrielli
authors.forename: Carl B
authors.initials: CB
authors.lastname: Poitras
authors.forename: Michal
authors.initials: M
authors.lastname: Lipson