简介:Siliconnanoconearrayswithmetalsilicide(FeandCr)-enrichedapexesarefabricatedonSi(100)substratebytheAr+ionbombardmentmethod.Thenanoconearraysshowexcellentfieldemissionproperties.Ahighcurrentdensity(J)of~0.33mA/cm2underafieldof~3V/μm,averylowturn-onfieldof~1.4V/μm,andaverylargeenhancementfactorof~9466arealsoobtained.TheemissionJofSinanoconearraysremainsextremelystableforlongperiodsoftime(24h).
简介:Hybridoctagonal-ringmicrolasersareinvestigatedforrealizingastableoutputfromasiliconwaveguidebasedonatwo-dimensionalsimulation.Theinnerradiusoftheringisoptimizedtoachievesingle-modeandlow-thresholdoperation.Usingthedivinylsiloxane-benzocyclobutene(DVS-BCB)bondingtechnique,ahybridAlGaInAs/Sioctagonal-ringmicrolaserverticallycoupledtoasiliconwaveguideisfabricatedwithasidelengthof21.6μmandaninnerradiusof15μm.Asingletransverse-modeoperationisachievedwithathresholdcurrentdensityof0.8kA∕cm~2andaside-modesuppressionratioabove30dB,andastableoutputfromthelowersiliconwaveguideisobtained.
简介:与扔的ZnOnanoparticles用擦亮方面的弧形纤维在1550nm区域操作的双波长的纤维激光被建议并且示威。擦亮弧的纤维被使用一份硅碳化物报纸在擦亮常规单个模式的纤维的一个方面的一条简单却新奇的途径制作。有一段2.25公里和0.95dB的插入损失的擦亮弧的纤维被落下演员组方法与ZnO获得并且扔nanoparticles。分别地,稳定的双波长的产量在9.3和10.1dBm的山峰力量在1562.5和1563.4nm被获得以及28.4dB的signal-to-noise比率和0.9nm的隧道间距。两放射激光的波长也有狭窄的线宽在到在测试继续上的没有波长或力量变化的0.045和0.049nm和表演很少之间。