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| 1 | 液晶随机激光:原理与研究进展显示文摘随机激光器达到阈值的方式并不是通过谐振腔,而是通过光子在增益随机散射介质中的多次散射带来的光学反馈实现的。将液晶用作散射介质,可以利用液晶易调控的特点,调整系统无序程度和染料分子的取向,使液晶随机激光器的激光阈值、强度、偏振等特性得到调控,由此可极大地拓宽随机激光器的应用范围。系统介绍了液晶随机激光器的工作原理,并分别介绍了向列相、胆甾相、蓝相和等离激元增强液晶随机激光的近期研究进展。希望能为该领域的初学者提供基础知识,同时为有经验的研究人员跟踪最新的研究进展提供重要参考。 | 刘言军 蔡文锋 李烨 唐宗元 何慧琳 王家伟 罗丹 | 2021 | 中国激光2021，48，12： | 2 |
| 2 | Low-threshold and narrow-emission random lasing in a self-assembly TiN nanoparticle-doped carbon quantum dot/DCM nanowire composite显示文摘The random lasing in quantum dot systems is in anticipation for widespread applications in biomedical therapy and image recognition,especially in random laser devices with high brightness and high monochromaticity.Herein,low-threshold,narrowband emission,and stable random lasing is realized in carbon quantum dot(CQD)/DCM nanowire composite-doped TiN nanoparticles,which are fabricated by the mixture of carbon quantum dots and self-assembly DCM dye molecules.The F?rster resonance energy transfer process results in a high luminescence efficiency for the composite of carbon dots and DCM nanowires,allowing significant random lasing actions to emerge in CQD/DCM composite as TiN particles are doped that greatly enhance the emission efficiency through the plasmon resonance and random scattering.Thus,sharp and low-threshold random lasing is finally realized and even strong single-mode lasing occurs under higher pumping energy in the TiN-doped CQD/DCM composite.This work provides a promising way in high monochromaticity random laser applications. | JING LYU XINYU ZHANG LEI CAI LI TAO WEIFENG MA AN LI YE TIAN YUNSONG YIN DENAN KONG WEN YI XIANSHUANG WANG RUIBIN LIU | 2022 | Photonics Research2022，10，9： | 0 |
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