title: Compact and self-aligned all-optical image correlator based on third-harmonic generation.
abstract: We demonstrate a compact optical correlator using a diffractive optical element (DOE) beam splitter for 2D optical image processing. Image frequency conversion and correlation are demonstrated using third-harmonic generation (THG) in an organic film with a 1550 nm femtosecond laser. Spatial and temporal alignment of the femtosecond pulses are obtained by imaging the DOE onto the organic film.
authors.affiliation: Center for Organic Photonics and Electronics, School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.
authors.forename: Shuo-Yen
authors.initials: SY
authors.lastname: Tseng
authors.forename: Canek
authors.initials: C
authors.lastname: Fuentes-Hernandez
authors.forename: Bernard
authors.initials: B
authors.lastname: Kippelen