制备具有外部谐振腔的胆甾相液晶激光器件.采用镀有多层膜的ITO玻璃作为基板,取向后制备1D-PC/CLC/1D-PC结构的胆甾相液晶激光器件.该激光器件在532 nm的Nd:YAG倍频脉冲激光器泵浦下能够出射双模激光.出射激光峰位分别位于600 nm和650 nm,对应于胆甾相液晶的短波边缘和长波边缘,并且激光的发射阈值明显低于普通的盒式胆甾相液晶激光器件.此激光器件可以通过电压控制在单模发射和多模发射之间切换,电控的阈值电压仅为6V.
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