High speed optical phased array using high contrast grating all-pass filters Yang, Weijian ; Sun, Tianbo ; Rao, Yi ; Megens, Mischa ; Chan, Trevor ; Yoo, Byung-Wook ; Horsley, David A. ; Wu, Ming C. ; Chang-Hasnain, Connie J. Abstract Publication: Optics Express Pub Date: August 2014 DOI: 10.1364/OE.22.020038 Bibcode: 2014OExpr..2220038Y