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首页> 外文会议>Conference on Photonic Crystal Materials and Devices Jan 28-30, 2003 San Jose, California, USA >Optical Limiting Properties of Metallo-Dielectric PBG Structures
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Optical Limiting Properties of Metallo-Dielectric PBG Structures

机译：金属介电PBG结构的光学限制特性

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摘要

In this work we investigated the nonlinear optical properties of a one-dimensional, transparent 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 (109nm) and Ag layers (17 nm). 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 transmissivc 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/cm~2.
机译：在这项工作中，我们研究了一维透明金属电介质光子带隙结构的非线性光学性质。具体地，我们考虑具有非线性材料作为成分的多层样品。我们选择ZnO是因为其在可见光区域的透明性以及众所周知的光学非线性。通过双离子束溅射技术，我们实现了一个四周期样品，其中单周期由ZnO（109nm）和Ag层（17 nm）组成。适当地设计了样品结构，以实现高非线性光学响应。为了研究样品在高光强度下的透射特性，已使用调Q倍频Nd：YAG激光。对于最大入射光强度为2 GW / cm〜2，发现透射率降低了约50％。

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