单负材料对系统光学双稳态的影响  

Effects of Single-Negative Material on the Optical Bistability

作　　者：王光[1] 汪萨克[1] 杨烨[1] 陈宪锋[1] 

机构地区：[1]常州大学数理学院,江苏常州213164

出　　处：《常州大学学报（自然科学版）》2011年第4期67-70,共4页Journal of Changzhou University：Natural Science Edition

摘　　要：研究了单负材料对光子晶体微腔系统光学双稳态的影响。若是腔中介质为散焦型的Kerr介质,晶体最外层单负材料厚度的增加,可以有效降低系统双稳态的开关阈值,最佳的单负材料层厚度约为30nm。但是对于聚焦型Kerr介质,单负材料层的存在反而不利于系统双稳态开关阈值的有效降低。The effects of single--negative material on the optical bistability of a photonic crystal microcavity were studied. If material in microcavity is defocusing Kerr medium, and the thickness of single--negative material in the outermost of the crystal increases, the bist＇able switch threshold will be reduced effectively. The thickness of the best single--negative material layer is about 30 nm. If the system is composed of focusing Kerr medium, the existence of single--negative material will not be conducive to the reduction of bistable switch threshold.

关 键 词：单负材料 光学双稳态 Bragg微腔 开关阈值 

分 类 号：O437[机械工程—光学工程]