title: Liquid tunable diffractive/refractive hybrid lens.
abstract: We present a liquid tunable diffractive/refractive hybrid lens fabricated through what we believe to be a novel process that combines single-point diamond turning with soft lithography techniques. The hybrid lens achieves focal length tunability by changing its shape and, at the same time, utilizes the unique dispersion property of diffractive surfaces to enhance its spectral performance within a wide tuning range.
authors.affiliation: Department of Mechanical Engineering, National University of Singapore, Singapore 117576, Singapore. mpezgy@nus.edu.sg
authors.forename: Guangya
authors.initials: G
authors.lastname: Zhou
authors.forename: Hui Min
authors.initials: HM
authors.lastname: Leung
authors.forename: Hongbin
authors.initials: H
authors.lastname: Yu
authors.forename: A Senthil
authors.initials: AS
authors.lastname: Kumar
authors.forename: Fook Siong
authors.initials: FS
authors.lastname: Chau