In this work we investigated the nonlinear optical properits of a one-dimensional, tranparent metallo-dielectric photonic band gap structure. Specifically, we consider multilayer samples having a nonlinear material as a component. We chose ZnO due to its transparency in the visible region and to its well known optical nonlinearity. By means of dual ion beam sputtering technique we realized a four period sample where the single period consists of ZnO and Ag layers. Sample structure was opportunely designed in order to achieve high nonlinear optical response. A Q-switched frequency doubled Nd:YAG laser has been used in order to investigate the transmissive properties of the sample under high light intensities. A transmission decrease of approximately 50% was found for a maximum incident light intensity of 2 GW/cm2.
Optical limiting properties of metallo-dielectric PBG structures / Larciprete, M. C.; Sibilia, Concetta; Paoloni, S.; Bertolotti, Mario; Sarto, F.; Scalora, M.. - SPIE 5000:(2003), pp. 1-1. (Intervento presentato al convegno Photonic Crystal Materials and Devices tenutosi a San Jose, CA, USA nel 28-30 gennaio 2003, San Jose (CA - USA)) [10.1117/12.479816].
Optical limiting properties of metallo-dielectric PBG structures
SIBILIA, Concetta;BERTOLOTTI, Mario;
2003
Abstract
In this work we investigated the nonlinear optical properits of a one-dimensional, tranparent metallo-dielectric photonic band gap structure. Specifically, we consider multilayer samples having a nonlinear material as a component. We chose ZnO due to its transparency in the visible region and to its well known optical nonlinearity. By means of dual ion beam sputtering technique we realized a four period sample where the single period consists of ZnO and Ag layers. Sample structure was opportunely designed in order to achieve high nonlinear optical response. A Q-switched frequency doubled Nd:YAG laser has been used in order to investigate the transmissive properties of the sample under high light intensities. A transmission decrease of approximately 50% was found for a maximum incident light intensity of 2 GW/cm2.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
