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Nonlinear optical properties of CsPbCl_(x)Br_(3-x)nanocrystals embedded glass

Photonics Research 2021年第9期9卷 1767-1774页

作者： chenjing quan XIAO XING SIHAO HUANG MENGFEIFEI JIN TONGCHAO SHI ZEYU ZHANG WEIDONG XIANG ZHANSHAN WANG YUXIN LENG School of Physics Science and Engineering Tongji UniversityShanghai 200092China State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science Shanghai Institute of Optics and Fine Mechanics(SIOM)Chinese Academy of Sciences(CAS)Shanghai 201800China College of Chemistry and Materials Engineering Wenzhou UniversityWenzhou 325035China Hangzhou Institute for Advanced Study University of Chinese Academy of SciencesHangzhou 310024China School of Physics and Electronics Shandong Normal UniversityJinan 250014China

All-inorganic perovskite has attracted significant attention due to its excellent nonlinear optical *** and low-toxic perovskite materials have great application prospects in optoelectronic ***,we study the nonlinear optical properties of CsPbCl_(x)Br_(3-x)(x=1,1.5,2)nanocrystals(NCs)glass by open-aperture *** is found that the two-(2 PA)and three-photon absorption(3 PA)intensity can be adjusted by the treatment temperature and the ratio of halide *** perovskite NCs glass treated at a high temperature has better crystallinity,resulting in stronger nonlinear absorption *** addition,the value of the 2 PA parameter of CsPbCl_(1.5)Br_(1.5)NCs glasses decreases when the incident pump intensity increases,which is ascribed to the saturation of 2 PA and population ***,the research results show that the 2 PA coefficient(0.127 cm GW-1)and 3 PA coefficient(1.21×10^(-5)cm^(3)GW-2)of CsPbCl_(1)Br_(2)NCs glass with high Br anion content are larger than those of CsPbCl_(2)Br_(1)and CsPbCl_(1.5)Br_(1.5)NCs *** is mainly due to the greater influence of Br anions on the symmetry of the perovskite structure,which leads to the redistribution of delocalized *** revealed adjustable nonlinear optical properties of perovskite NCs glass are essential for developing stable and high-performance nonlinear optical devices.

关键词： glass perovskite glasses

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Role of the interlayer interactions in ultrafast terahertz thermal dynamics of bilayer graphene

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Chinese Optics Letters 2022年第9期20卷 79-83页

作者： Tingyuan Jia Shaoming Xie Zeyu Zhang Qinxue Yin Chunwei Wang chenjing quan Xiao Xing Juan Du Yuxin Leng State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science Shanghai Institute of Optics and Fine Mechanics(SIOM)Chinese Academy of Sciences(CAS)Shanghai 201800China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Hangzhou Institute for Advanced Study University of Chinese Academy of SciencesHangzhou 310024China School of Physics and Electronics Shandong Normal UniversityJinan 250014China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China

Bilayer graphene,which is highly promising for electronic and optoelectronic applications because of its strong coupling of the Dirac–Fermions,has been studied extensively for the emergent correlated phenomena with magic-angle *** to the low energy linear type band gap dispersion relationship,graphene has drawn an amount of optoelectronic devices applications in the terahertz ***,the strong interlayer interactions modulated electron-electron and electron-phonon coupling,and their dynamics in bilayer graphene have been rarely studied by terahertz *** this study,the interlayer interaction influence on the electron-electron and the electron-phonon coupling has been assigned with the interaction between the two graphene *** the ultrafast cooling process in bilayer graphene,the interlayer interaction could boost the electron-phonon coupling process and oppositely reduce the electron-electron coupling process,which led to the less efficient thermalization ***,the electron-electron coupling process is shown to be related with the electron momentum scattering time,which increased vividly in bilayer *** work could provide new insights into the ultrafast dynamics in bilayer graphene,which is of crucial importance for designing multi-layer graphene-based optoelectronic devices.

关键词： terahertz ultrafast spectroscopy bilayer graphene

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Anti-vascular endothelial growth factor treatment for choroidal neovascularization secondary to angioid streaks in pseudoxanthoma elasticum： a case report and systemic review

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Eye Science 2016年第2期31卷 111-118页

作者： Aiyi Zhou chenjing Zhou Ziyao Liu Yanlong quan Department of Ophthalmology the Second Affiliated Hospital of Medical College of Xi'an Jiaotong University Xi'an 710004 China

The present study reports a case of a patient with choroidal neovascularization(CNV)associated with pseudoxanthoma elasticum(PXE).We observed the functional and anatomical improvement of the patient treated with intravitreal vascular endothelial growth factor(VEGF)inhibitor *** study also systematically searched the database for similar cases to provide a literature *** concerning the clinical features,treatment strategies and outcomes were extracted and *** interventional case report and systematic literature review.A 56-year-old healthy Chinese woman with CNV secondary to PXE was *** included best corrected visual acuity(BCVA),biomicroscopy,optical coherence tomography(OCT),fluorescein and indocyanine green angiography and digital fundus *** patient managed with intravitreal anti-vascular endothelial growth factor(anti-VEGF)injections(bevacizumab 1.25 mg/0.05 m L).The Cochrane Library,Pub Med,OVID,and Up To Date databases were searched using the term pseudoxanthoma elasticum or Gr?nblad-Strandberg syndrome with the limits *** that predated the databases were gathered from current *** examination revealed angioid streaks bilaterally and CNV in left eye(LE).After the patient underwent three intravitreal injections of bevacizumab,the LE showed absorption of the subretinal fluid and shrinkage of the *** acuity(VA)was improved in her treated *** treatment was well tolerated with no adverse events *** ten articles about 45 patients(49 eyes)describing CNV secondary to angioid streaks in PXE treated with anti-VEGF were found in the literature *** the present case,bevacizumab of an initial three injection loading dose,achieved maintenance of visual function in the treatment of CNV associated with angioid streaks in *** articles concluded that the intravitreal application of anti-VEGF is highly efficient for improving and stab

关键词：血管内皮生长因子文献综述病例报告新生血管条纹相脉络膜治疗系统

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食欲素受体通路干预海马神经元放电研究

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中华老年心脑血管病杂志 2018年第8期20卷 801-805页

作者：全普生张旭邵晨婧李德生郎森阳王湘庆呼和浩特市第一医院神经内科 010020 解放军总医院神经内科

目的采用膜片钳技术研究食欲素受体(OxR)通路对海马CA1区锥体神经元放电的影响。方法将Wistar大鼠取脑,急性分离单个CA1区锥体神经元。选140例神经元,用膜片钳技术记录电活动,根据神经元自身放电频率分为低频和高频,神经元分别用人工脑... 详细信息

目的采用膜片钳技术研究食欲素受体(OxR)通路对海马CA1区锥体神经元放电的影响。方法将Wistar大鼠取脑,急性分离单个CA1区锥体神经元。选140例神经元,用膜片钳技术记录电活动,根据神经元自身放电频率分为低频和高频,神经元分别用人工脑脊液(低频对照组60例和高频对照组22例),食欲素A受体激动剂(O6012 200nmol/L,低频实验组48例和高频实验组10例),O6012 200nmol/L和选择性OxR1拮抗剂SB334867混合液(低频拮抗组7例和高频拮抗剂组1例)刺激,观察低频实验组28例和高频实验组4例给药前、给药期间和停止给药的电活动变化。结果低频实验组激活58.3%神经元,给药期间神经元放电频率明显高于给药前(5.36±4.01Hz vs 1.43±0.88Hz,P0.05)。高频组激活40.0%神经元,给药期间神经元放电频率明显高于给药前[(6.98±2.45)Hz vs(4.93±2.55)Hz,P0.05)。结论海马CA1区锥体神经元上可能存在OxR;激活OxR可兴奋神经元,并介导某些神经活动。

关键词：膜片钳术海马癫痫神经元受体 G-蛋白偶联

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三明市大气颗粒物浓度与缺血性心脏病死亡的时间序列分析

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预防医学论坛 2019年第10期25卷 727-730页

作者：朱瑶钟文玲林丽钦黄少芬蒋冬升林修全胡清华陈婧瑜李玲玉福建省疾病预防控制中心福建福州350001 福建省环境监测中心站福建福州350001

目的探索大气颗粒物对三明市居民缺血性心脏病死亡的影响,评估健康效应。方法收集2017年1月1日至2018年12月31日三明市居民缺血性心脏病死亡资料和同期大气污染数据PM10,采用时间序列的广义相加模型,定量评价大气颗粒物污染与缺血性心... 详细信息

目的探索大气颗粒物对三明市居民缺血性心脏病死亡的影响,评估健康效应。方法收集2017年1月1日至2018年12月31日三明市居民缺血性心脏病死亡资料和同期大气污染数据PM10,采用时间序列的广义相加模型,定量评价大气颗粒物污染与缺血性心脏病死亡的关系。结果2017年1月1日至2018年12月31日期间,PM10和PM2.5日均浓度分别为(36.84±20.78)和(19.66±14.32)μg/m3,缺血性心脏病总死亡人数3020人,日均死亡5.28人。单污染模型分析显示,PM10和PM2.5浓度每升高10μg/m3,缺血性心脏病死亡增加2.93%(95%CI=0.81~5.11)和4.01%(95%CI=1.05~7.05),PM10在3日平均滞后(lag02)效应达到最高(ER=4.73,95%CI=2.04~7.49),PM2.5在2日平均滞后(lag01)效应达到最高(ER=6.10,95%CI=2.61~9.70);双污染模型分析显示,模型纳入PM2.5后,PM10与IHD的关联无统计学意义;控制PM10后,PM2.5与IHD的关联无统计学意义。结论大气颗粒物对缺血性心脏病的影响存在滞后性,缺血性心脏病死亡人数随着大气颗粒物浓度的增加而呈上升趋势。

关键词：大气颗粒物时间序列缺血性心脏病

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