Direct measurement of group delay dispersion in metamagnetics for ultrafast pulse shaping

Dean P. Brown, Universal Energy Syst Inc
Mark A. Walker, Gen Dynam Informat Technol
Augustine M. Urbas, United States Air Force; United States Department of Defense
Alexander V. Kildishev, Birck Nanotechnology Center, Purdue University
Shumin Xiao, Birck Nanotechnology Center, Purdue University
Vladimir P. Drachev, Birck Nanotechnology Center, Purdue University; University of North Texas Denton

Abstract

In this paper, we explore the use of magnetic resonant metamaterials, so called metamagnetics, as dispersive elements for optical pulse shaping. We measure both positive and negative group delay dispersion (GDD) values in a metamagnetic material using the multiphoton interference phase scan (MIIPS) technique and show pulse temporal profiles numerically. The results are compared with finite element models. These GDD properties of metamagnetics, along with previously shown tunability and loss control with gain media, enable their use in ultrashort pulse optical applications. (C)2012 Optical Society of America

Discipline(s)

Nanoscience and Nanotechnology