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| 1 | Semi-Supervised Learning with Generative Adversarial Networks on Digital Signal Modulation Classification显示文摘Deep Learning(DL)is such a powerful tool that we have seen tremendous success in areas such as Computer Vision,Speech Recognition,and Natural Language Processing.Since Automated Modulation Classification(AMC)is an important part in Cognitive Radio Networks,we try to explore its potential in solving signal modulation recognition problem.It cannot be overlooked that DL model is a complex model,thus making them prone to over-fitting.DL model requires many training data to combat with over-fitting,but adding high quality labels to training data manually is not always cheap and accessible,especially in real-time system,which may counter unprecedented data in dataset.Semi-supervised Learning is a way to exploit unlabeled data effectively to reduce over-fitting in DL.In this paper,we extend Generative Adversarial Networks(GANs)to the semi-supervised learning will show it is a method can be used to create a more dataefficient classifier. | Ya Tu Yun Lin Jin Wang Jeong-Uk Kim | 2018 | Computers, Materials & Continua2018,,5: | 28 |
| 2 | Second harmonic generation in a high-Q lithium niobate microresonator fabricated by femtosecond laser micromachining显示文摘We report on second harmonic generation(SHG) in on-chip high-Q(>105) lithium niobate(Li Nb O3, LN) microresonators fabricated by femtosecond laser micromachining. We examine the efficiency of SHG with either a continuous-wave(CW) or an ultrashort pulsed pump laser. The normalized conversion efficiencies of SHG obtained with the CW and pulsed pump lasers are measured to be 1.35×10?5 m W?1 and 2.30×10?6 m W?1, respectively. | LIN JinTian XU YingXin FANG ZhiWei WANG Min WANG NengWen QIAO LingLing FANG Wei CHENG Ya | 2015 | Science China(Physics,Mechanics & Astronomy)2015,58,11: | 25 |
| 3 | The Role of Fibrocyte in the Pathogenesis of Silicosis显示文摘Exposure to free silica induces silicosis and myofibroblasts are regarded as primary effector cells.Fibrocytes can differentiate into myofibroblast.Therefore,the present study was designed to investigate whether | LI Juan YAO Wu HOU Jian Yong ZHANG Lin BAO Lei CHEN Hui Ting WANG Di YUE Zhong Zheng LI Yi Ping ZHANG Miao YU Xing Hao ZHANG Jian Hui QU Ya Qian HAO Chang Fu | 2018 | Biomedical and Environmental Sciences2018,31,4: | 20 |
| 4 | PRMT5 regulates Golgi apparatus structure through methylation of the golgin GM130显示文摘Golgi 仪器(GA ) 的维护结构和功能取决于 Golgi 矩阵蛋白质。象 golgin 和掌握家庭的成员的 phosphorylation 那样的 Golgi 蛋白质的 posttranslational 修正为决定 Golgi 建筑学是重要的。包括 golgin-84 的一些 Golgi 蛋白质也被知道是 methylated,但是 golgin methylation 的功能仍然保持不清楚。这里,我们证明蛋白质精氨酸 methyltransferase (PRMT5 ) 5 本地化到 GA 和形式建筑群,几个部件在拴住的 GA 带子形成和泡包含了。PRMT5 在 Golgi 带子形成与 PRMT5 原因缺点的 golgin GM130,和弄空交往。而且,在 GM130 的 PRMT5 甲醇化物 N 终端精氨酸,和如此的精氨酸 methylation 为 GA 显得批评带子形成。我们的调查结果揭示 GM130 的 PRMT5 依赖的精氨酸 methylation 由控制 GA 建筑学的维护的分子的机制。 | Zhongwei Zhou Xiaotian Sun Zhenhua Zou Litao Sun Tao Zhang Shaoshi Guo Ya Wen Lin Liu Yi Wang Jun Qin Lei Li Weimin Gong Shilai Bao | 2010 | Cell Research2010,20,9: | 16 |
| 5 | TNF-α and IL-1RA Polymorphisms and Silicosis Susceptibility in Chinese Workers Exposed to Silica Particles:A Case-Control Study显示文摘Objective To assess the association of TNF- α and IL-1RA SNPs with the risk of silicosis in Chinese workers exposed to silica particles. Methods Case-control study design was used to enroll 68 silicotic patients induced by silica particles and 68 healthy workers matched for length of silica particle exposure as controls. Both cases and controls were from the same company in southwest China, and each of them was requested to complete a questionnaire. Blood samples were drawn for genomic DNA extraction from each participant. The genotyping of TNF-α (-238 and -308) and IL-1RA (+2018) was performed using polymerase chain reaction-based restriction fragment length polymorphism (PCR-RFLP) and SYBR green-based quantitative polymerase chain reaction (qPCR), respectively. Unconditional logistic regression model was used to estimate odds ratios (ORs) and their 95% confidential intervals (CI) for SNPs. Results No significant differences were found between cases and controls in particles exposure length, body mass index (BMI), and status of smoking and alcohol consumption except for age (P=0.001) and blood type (P=0.042). The frequencies of TNF-α (-238) and IL-1RA (+2018) genotypes in cases were significantly different from those in controls, (P=0.001 and P=0.002, respectively), while a borderline significant difference was found in the frequencies of TNF-α (-308) between cases and controls (P=0.063). The variants of three SNPs increased the risk of silicosis in the Chinese workers exposed to silica particles. The adjusted ORs of TNF-α (-308), TNF-α (-238) and IL-1RA (+2018) were 2.8 (95% CI: 1.1-7.5), 20.9 (95% CI: 1.8-236.4) and 4.0 (95% CI: 1.6-10.1), respectively. Conclusion It is suggested that cytokine polymorphisms of TNF- α (-238, -308) and IL-1RA (+2018) are associated with the risk of silicosis in the Chinese workers exposed to silica particles. Further independent studies on the interaction between SNPs and exposure to silica particles with a larger sample size are therefore warranted. | WANG Yong Wei LAN Ya Jia YANG Yue Lin WANG De Jun KUANG Jie | 2012 | Biomedical and Environmental Sciences2012,25,5: | 11 |
| 6 | Memristors with organic-inorganic halide perovskites显示文摘Organic-inorganic halide perovskites(OHPs)have been intensively studied for application in solar cells with high conversion efficiency exceeding 22%.The unique electrical and optical properties of OHPs have led to their use in optoelectronic device applications beyond photovoltaics,such as light-emitting diodes,photodetectors,transistors.New information storage technologies and computing architectures are being researched extensively with the aim of addressing the growing challenge of approaching end of Moore's law and von Neumann bottleneck.As the fourth basic circuit element,memristor is a leading candidate with powerful capabilities in information storage and neuromorphic computing applications.Recently,OHPs have received growing attention as promising materials for memristors.In particular,their mixed ionic-electronic conduction ability paired with light sensitivity provide OHPs with the opportunity to display novel functions such as optical-erase memory,optogenetics-inspired synaptic functions,and lightaccelerated learning capability.This review covers recent advances in OHP-based memristors development including memristive mechanism and analytical models,universal memristive characteristics for memory and neuromorphic computing applications,and novel multi-functionalization.Challenges and future prospects of OHP-based memristors are also discussed. | Xiaoning Zhao Haiyang Xu Zhongqiang Wang Ya Lin Yichun Liu | 2019 | InfoMat2019,1,2: | 10 |
| 7 | Large-scale real-world radio signal recognition with deep learning显示文摘In the past ten years, many high-quality datasets have been released to support the rapid development of deep learning in the fields of computer vision, voice, and natural language processing. Nowadays, deep learning has become a key research component of the Sixth-Generation wireless systems(6G) with numerous regulatory and defense applications. In order to facilitate the application of deep learning in radio signal recognition, in this work, a large-scale real-world radio signal dataset is created based on a special aeronautical monitoring system-Automatic Dependent Surveillance-Broadcast(ADS-B). This paper makes two main contributions. First, an automatic data collection and labeling system is designed to capture over-the-air ADS-B signals in the open and real-world scenario without human participation. Through data cleaning and sorting, a high-quality dataset of ADS-B signals is created for radio signal recognition. Second, we conduct an in-depth study on the performance of deep learning models using the new dataset, as well as comparison with a recognition benchmark using machine learning and deep learning methods.Finally, we conclude this paper with a discussion of open problems in this area. | Ya TU Yun LIN Haoran ZHA Ju ZHANG Yu WANG Guan GUI Shiwen MAO | 2022 | Chinese Journal of Aeronautics2022,35,9: | 9 |
| 8 | Endovascular therapy for Acute ischemic Stroke Trial (EAST): study protocol for a prospective, multicentre control trial in China显示文摘Background and purpose:5 recent trials have shown the benefit of endovascular treatment for acute ischaemic stroke(AIS)due to large vessel occlusion of the anterior circulation.This study aims to evaluate the safety and efficacy of Solitaire thrombectomy in patients with moderate-to-severe stroke in the Chinese population,which has a high prevalence of intracranial atherosclerosis.Methods and analysis:This multicentre prospective control study will involve 17 stroke centres in China,and plans to recruit 150 patients in the intervention group,and 150 patients in the medical group,in which patients meet enrolment criteria but refuse intervention.Patients with AIS due to large vessel occlusion indicated for treatment with Solitaire stent retriever within 12 hours of symptom onset,and who meet the inclusion and exclusion criteria,will be enrolled in this study.The primary efficacy endpoint is functional independence as defined by a modified Rankin Scale(mRS)score≤2 at 90 days or by functional improvement as defined by mRS,using shift analysis.The procedural efficacy endpoint is arterial recanalisation of the occluded target vessel measured by a modified Thrombolysis in Cerebral Infarction(mTICI)score equal or superior to 2b right following the use of the study device.The primary safety endpoint is symptomatic intracranial haemorrhage(sICH)within 24±3 hours postprocedure.Ethics and dissemination:The protocol was approved by the Ethics Committee at the coordinating centre and by the local Institutional Review Board of each participating centre.Trial registration number:NCT02350283. | Zhongrong Miao Xiaochuan Huo Feng Gao Xiaoling Liao Chunjuan Wang Ya Peng Yibin Cao Shengli Chen Meng Zhang Changchun Jiang Xiaoxiang Peng Cunfeng Song Liping Wei Qiyi Zhu Zaiyu Guo Li Liu Hang Lin Hua Yang Wei Wu Hui Liang Anding Xu Kangning Chen Xingquan Zhao Yuesong Pan Hao Li Liping Liu Yilong Wang Yongjun Wang EAST investigators | 2016 | Stroke & Vascular Neurology2016,1,2: | 8 |
| 9 | Correlation between Sex and Prognosis of Acute Aortic Dissection in the Chinese Population显示文摘 | Yan-Jie Liu Xiao-Zeng Wang Ya Wang Rui-Xia He Lin Yang Quan-Min Jing Hai-Wei Liu | 2018 | Chinese Medical Journal2018,,12: | 8 |
| 10 | Association of Overlapped and Un-overlapped Comorbidities with COVID-19 Severity and Treatment Outcomes: A Retrospective Cohort Study from Nine Provinces in China显示文摘Objective Several COVID-19 patients have overlapping comorbidities. The independent role of each component contributing to the risk of COVID-19 is unknown, and how some non-cardiometabolic comorbidities affect the risk of COVID-19 remains unclear.Methods A retrospective follow-up design was adopted. A total of 1,160 laboratory-confirmed patients were enrolled from nine provinces in China. Data on comorbidities were obtained from the patients’ medical records. Multivariable logistic regression models were used to estimate the odds ratio(OR) and 95% confidence interval(95% CI) of the associations between comorbidities(cardiometabolic or non-cardiometabolic diseases), clinical severity, and treatment outcomes of COVID-19.Results Overall, 158(13.6%) patients were diagnosed with severe illness and 32(2.7%) had unfavorable outcomes. Hypertension(2.87, 1.30–6.32), type 2 diabetes(T2 DM)(3.57, 2.32–5.49),cardiovascular disease(CVD)(3.78, 1.81–7.89), fatty liver disease(7.53, 1.96–28.96), hyperlipidemia(2.15, 1.26–3.67), other lung diseases(6.00, 3.01–11.96), and electrolyte imbalance(10.40, 3.00–26.10)were independently linked to increased odds of being severely ill. T2 DM(6.07, 2.89–12.75), CVD(8.47,6.03–11.89), and electrolyte imbalance(19.44, 11.47–32.96) were also strong predictors of unfavorable outcomes. Women with comorbidities were more likely to have severe disease on admission(5.46,3.25–9.19), while men with comorbidities were more likely to have unfavorable treatment outcomes(6.58, 1.46–29.64) within two weeks.Conclusion Besides hypertension, diabetes, and CVD, fatty liver disease, hyperlipidemia, other lung diseases, and electrolyte imbalance were independent risk factors for COVID-19 severity and poor treatment outcome. Women with comorbidities were more likely to have severe disease, while men with comorbidities were more likely to have unfavorable treatment outcomes. | MA Yan ZHU Dong Shan CHEN Ren Bo SHI Nan Nan LIU Si Hong FAN Yi Pin WU Gui Hui YANG Pu Ye BAI Jiang Feng CHEN Hong CHEN Li Ying FENG Qiao GUO Tuan Mao HOU Yong HU Gui Fen HU Xiao Mei HU Yun Hong HUANG Jin HUANG Qiu Hua HUANG Shao Zhen JI Liang JIN Hai Hao LEI Xiao LI Chun Yan LI Min Qing LI Qun Tang LI Xian Yong LIU Hong De LIU Jin Ping LIU Zhang MA Yu Ting MAO Ya MO Liu Fen NA Hui WANG Jing Wei SONG Fang Li SUN Sheng WANG Dong Ting WANG Ming Xuan WANG Xiao Yan WANG Yin Zhen WANG Yu Dong WU Wei WU Lan Ping XIAO Yan Hua XIE Hai Jun XU Hong Ming XU Shou Fang XUE Rui Xia YANG Chun YANG Kai Jun YUAN Sheng Li ZHANG Gong Qi ZHANG Jin Bo ZHANG Lin Song ZHAO Shu Sen ZHAO Wan Ying ZHENG Kai ZHOU Ying Chun ZHU Jun Teng ZHU Tian Qing ZHANG Hua Min WANG Yan Ping WANG Yong Yan 无 | 2020 | Biomedical and Environmental Sciences2020,33,12: | 8 |
| 11 | Consensus by Chinese Expert Panel on Chlamydia trachomatis-Resistant and Chlamydia trachomatis-Persistent Infection显示文摘 | Man-Li Qi Yuan-Li Guo Qian-Qiu Wang Xiang-Sheng Chen Jian-De Han Xiao-Hong Su Wen-Hui Lun Hao Cheng Jin-Hua Xu Hong-Qing Tian Li Che Zhi-Yuan Ya Wen-Li Feng Juan Jiang Ping-Yu Zhou Xian-Biao Zo Hong-Hui Xu Wei-Min Shi Jun Liu Lin Zhu Quan-Zhong Liu | 2017 | Chinese Medical Journal2017,,23: | 7 |
| 12 | Reconfigurable directional coupler in lithium niobate crystal fabricated by three-dimensional femtosecond laser focal field engineering显示文摘For crystals, depressed cladding waveguides have advantages such as preservation of the spectroscopic as well as non-linear properties and the capability to guide both horizontal and vertical polarization modes, but fabrication is always quite time consuming. In addition, it is usually difficult to couple modes propagating in different depressed cladding waveguides through evanescent field overlap, so it is often required to dynamically reconfigure photonic waveguide devices using external fields for classical or quantum applications. Here, we experimentally demonstrate the single-scan femtosecond laser transverse writing of depressed cladding waveguides to form a 2 × 2 directional coupler inside lithium niobate crystal, which is integrated with two deeply embedded microelectrodes on both sides of the interaction region to reconfigure the coupling. By focal field engineering of the femtosecond laser, we specially generate a three-dimensional longitudinally oriented ring-shaped focal intensity profile composed of 16 discrete spots to simultaneously write the entire cladding region. The fabricated waveguides exhibit good single guided modes in two orthogonal polarizations at 1550 nm. By applying voltage to the deeply embedded microelectrodes fabricated with the femtosecond laser ablation followed by selective electroless plating, we successfully facilitate the light coupling from the input arm to the cross arm and thus actively tune the splitting ratio. These results open new important perspectives in the efficient fabrication of reconfigurable complex three-dimensional devices in crystals based on depressed cladding waveguides. | Qian Zhang Meng Li Jian Xu Zijie Lin Haofeng Yu Min Wang Zhiwei Fang Ya Cheng Qihuang Gong Yan Li | 2019 | Photonics Research2019,7,5: | 7 |
| 13 | Three-dimensional image of hepatocellular carcinoma under confocal laser scanning microscope显示文摘AIM To investigate the application of confocallaser scanning microscopy(CLSM)in tumorpathology and three-dimensional( 3-D )reconstruction by CLSM in pathologic specimensof hepatocellular carcinoma(HCC).METHODS The 30μm thick sections were cutfrom the paraffin-embedded tissues of HCC,hyperplasia and normal liver,stained with DNAfluorescent probe YOYO-1 iodide and examinedby CLSM to collect optical sections of nuclei and3-D images reconstructed.RESULTS HCC displayed chaotic arrangementof carcinoma cell nuclei,marked pleomorphism,indented and irregular nuclear surface,andirregular and coarse chromatin texture.CONCLUSION The serial optical tomograms ofCLSM can be used to create 3-D reconstruction ofcancer cell nuclei.Such 3-D impressions mightbe helpful or even essential in making anaccurate diagnosis. | Wang Hai Zhang Shi Neng Zhu Shi Lun Lu Ya Lin Huang Peng Zhao | 2000 | World Journal of Gastroenterology2000,6,3: | 7 |
| 14 | Two new lignans from Dipteronia dyeriana显示文摘新 sesquilignan, 7 鈥 ? 8 鈥 ? didehydroherpetotriol (1 ) ,和新 lignan glycoside,(+)-isolariciresinol-9 鈥 ?O- 伪 -l-rhamnopyranosyl-(1 鈫 ? 6 )- 尾 -d-glucopyranoside (2 ) ,从 Dipteronia dyeriana 的分支被孤立。他们的结构被分光镜的方法和化学证据阐明。与 39 渭 m ol/L 的 IC50 价值对人的白血球过多症 K562 房间加重 1 项拥有的禁止的活动。 | Rong Guo Min Luo Chun Lin Long Ma Lin Li Zhi Qin Ouyang Yi Ping Zhou Yue Hu Wang Xing Yu Li Ya Na Shi | 2008 | Chinese Chemical Letters2008,19,10: | 7 |
| 15 | DEK43 is a P-type pentatricopeptide repeat(PPR)protein responsible for the Cis-splicing of nad4 in maize mitochondria显示文摘Mitochondria, the main energy transducers in plant cells, require the proper assembly of respiratory chain complexes Ⅰ–Ⅴ for their function. The NADH dehydrogenase4(nad4) gene encodes mitochondrial respiratory chain complex Ⅰ subunit Ⅳ, but the mechanism underlying nad4 transcript splicing is unclear. Here, we report that the P-type pentatricopeptide repeat(PPR) protein DEFECTIVE KERNEL 43(DEK43) is responsible for cis-splicing of the nad4 transcript in maize. We demonstrate that DEK43 localizes to both the nucleus and mitochondria. The mutation of Dek43 resulted in embryo-lethal and light-colored defective kernels. Among the 22 mitochondrial group Ⅱ introns, the splicing efficiency of nad4 introns 1 and 3 was reduced by up to 50% compared to the wild type. The levels of complex Ⅰ and supercomplex Ⅰ+Ⅲ2 were also reduced in dek43. Furthermore, in-gel NADH dehydrogenase assays indicated that the activities of these complexes were significantly reduced in dek43. Further, the mitochondrial ultrastructure was altered in the mutant. Together, our findings indicate that DEK43, a dual-localized PPR protein,plays an important role in maintaining mitochondrial function and maize kernel development. | Ru Chang Ren Li Li Wang Lin Zhang Ya Jie Zhao Jia Wen Wu Yi Ming Wei Xian Sheng Zhang Xiang Yu Zhao | 2020 | Journal of Integrative Plant Biology2020,62,3: | 6 |
| 16 | Triboelectric nanogenerators as flexible power sources显示文摘The triboelectric nanogenerator(TENG)as a new power-generation technology was reported by Wang and co-workers in 2012.Because of its great potential for scavenging mechanical energy from living environment and sustainably driving portable devices,many researchers have developed various methods to improve output performances of TENG.In this paper,we review the progress in TENG made as flexible power sources by integrating flexible materials and stretching structures,especially for the applications of flexible electronics.For optimizing performances of TENG,the structural designs,material selections,and hybrid energy cells are presented.The reported TENG as flexible power sources has the potential applications in lighting up light emitting diodes(LEDs),powering sensors,and monitoring biomechanical motions. | Yang Wang Ya Yang Zhong Lin Wang | 2017 | npj Flexible Electronics2017,1,1: | 5 |
| 17 | Four new species and a new record of Orchidinae(Orchidaceae:Orchideae)from China显示文摘Four new species of Orchidaceae from China,Heminium lijiangense,Peristylus fasciculatus,Platanthera milinensis,and Ponerorchis gongshanensis,together with a new country record,Peristylus tenuicallus,are described and illustrated based on morphological and/or phylogenetic analyses.Heminium lijiangense is closely related to H.elisabethae but differs from it by having the dorsal sepal ovate-orbicular and lip midlobe distinctly shorter than lateral lobes.P.fasciculatus is close to Peristylus tradescantifolius but is distinguished from it by having several fascicled and straight,root-like tubers(vs.one or two oblongoid tubers),old stems usually persistent,middle lobe of lip narrowly ligulate-lanceolate and half as long as the lateral lobes(vs.middle lobe deltoid,about a third as long as the lateral lobes or less),a raised callus at the base of each lateral lobe(vs.callus absent),spur gradually attenuate toward the apex(vs.spur clavate).Platanthera milinensis is similar to P.stenochila by sharing small green flowers and lip without a spur,but differs in having a creeping rhizome,a corymbose inflorescence,and a broadly ovate and slightly 3-lobed lip.Ponerochis gongshanensis is similar to P.faberi in its small flowers,but differs in having a linear leaf c.3 mm wide(vs.leaf 5-13 mm wide),in the lip having collar-like raised margins on the sides of the spur entrance,and a mid-lobe which is notched at the apex but not divided into two divergent lobules that are nearly as large as the lateral lobes,as in P.faberi.All the proposed species obtained high support in phylogenetic analysis as new species.The recently described genus Apetalanthe is reduced to synonymy of Ponerorchis and a new combination is made. | Dong-Liang Lin Ji-Dong Ya Andre Schuiteman Chong-Bo Ma Cheng Liu Xue-Lian Guo Shi-Si Chen Xi-Long Wang Zhi-Rong Zhang Wen-Bin Yu Xiao-Hua Jin | 2021 | Plant Diversity2021,43,5: | 4 |
| 18 | β-hydroxy-β-methylbutyrate Improves Chronic Renal Failure-Induced Sarcopenia in SD Rats by Regulating Autophagy显示文摘Background Chronic renal failure-induced sarcopenia(CRF-S)seriously affects public health by increasing morbidity and mortality.This study evaluated the therapeutic effects ofβ-hydroxy-β-methylbutyrate acid(HMB)and the underlying mechanism in an adenine-induced CRF-S rat model.Methods Sprague Dawley rats were divided into control,model(CRF-S),and HMB treatment(CRF-S+HMB)groups.The rats in the CRF-S group received 250 mg/kg/d adenine by oral gavage every day for 14 days,followed by administration every other day until the 28th day.In the CRF-S+HMB group,each rat was given 320 mg/kg/d HMB by oral gavage starting from 7 days prior to adenine treatment,and this treatment was maintained for a total of 35 days.The body weight,right anterior tibial muscle weight,blood serum parameters,gastrocnemius muscle and renal tissue histology,and expression of autophagy-related transcripts and proteins were evaluated.Results A rat model of CRF-S was successfully established via adenine gavage,as indicated by reduced body weight and muscle weights,and markers of sarcopenia.There were increased mRNA levels of LC3B,Beclin1,Ulk1,Atg5,Atg7,Atg13 and vps-34,and increased protein expression levels of LC3B and P62.In the rats with HMB intervention,the body weight,right anterior tibial weight and gastrocnemius muscle histology were not significantly different from those in the control group,and the expression levels of autophagy-related proteins(LC3B and P62)were consistent with those in the control group.Conclusion We successfully established a rat model of CRF-S using adenine administered via oral gavage,and observed that HMB treatment prevented CRF-S. | Zun Yue Zhang Liu Qing Yang Ya Nan Yang Yun Lin Wang Long Mei Zhang Kun Hua Wang Min Weng | 2021 | Journal of Nutritional Oncology2021,6,4: | 4 |
| 19 | An alternative aqueous synthetic route to preparing CdTe quantum dots with tunable photoluminescence显示文摘一条水的合成线路被开发了因为 mercaptosuccinic 酸(MSA ) 的准备作为 reductant 作为碲来源和钠 borohydride 用 TeO2 盖住 CdTe 量点(QD ) 。尺寸和 CdTe QD 的排放肤色能被改变倒流时间调节。获得的 QD 被光致发光(PL ) 描绘光谱学, X 光检查粉末衍射(XRD ) 和高分辨率的传播电子显微镜学(HRTEM ) 。结果证明 CdTe QD 具有在像范围的形状的锌闪锌矿水晶结构。 | Yi Lin Wang Sheng Yan Liu Li Ya Zhou | 2012 | Chinese Chemical Letters2012,23,3: | 4 |
| 20 | Electro-optic tuning of a single-frequencyultranarrow linewidth microdisk laser显示文摘Single-frequency ultranarrow linewidth on-chip microlasers with a fast wavelength tunability play a game-changing role in a broad spectrum of applications ranging from coherent communication,light detection and ranging,to metrology and sensing.Design and fabrication of such light sources remain a challenge due to the difficulties in making a laser cavity that has an ultrahigh optical quality(Q)factor and supports only a single lasing frequency simultaneously.Here,we demonstrate a unique single-frequency ultranarrow linewidth lasing mechanism on an erbium ion-doped lithium niobate(LN)microdisk through simultaneous excitation of high-Q polygon modes at both pump and laser wavelengths.As the polygon modes are sparse within the optical gain bandwidth compared with the whispering gallery mode counterpart,while their Q factors(above 10 million)are even higher due to the significantly reduced scattering on their propagation paths,single-frequency lasing with a linewidth as narrow as 322 Hz is observed.The measured linewidth is three orders of magnitude narrower than the previous record in on-chip LN microlasers.Finally,enabled by the strong linear electro-optic effect of LN,real-time electro-optical tuning of the microlaser with a high tuning efficiency of∼50 pm∕100 V is demonstrated. | Jintian Lin Saeed Farajollahi Zhiwei Fang Ni Yao Renhong Gao Jianglin Guan Li Deng Tao Lu Min Wang Haisu Zhang Wei Fang Lingling Qiao Ya Cheng | 2022 | Advanced Photonics2022,4,3: | 4 |