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| 1 | Terahertz Semiconductor Quantum Well Devices显示文摘For eventually providing terahertz science with compact and convenient devices,terahertz (1~10THz) quantum-well photodetectors and quantum-cascade lasers are investigated.The design and projected detector performance are presented together with experimental results for several test devices,all working at photon energies below and around optical phonons.Background limited infrared performance (BLIP) operations are observed for all samples (three in total),designed for different wavelengths.BLIP temperatures of 17,13,and 12K are achieved for peak detection frequencies of 9.7THz(31μm),5.4THz(56μm),and 3.2THz(93μm),respectively.A set of THz quantum-cascade lasers with identical device parameters except for doping concentration is studied.The δ-doping density for each period varies from 3.2×1010 to 4.8×1010cm-2.We observe that the lasing threshold current density increases monotonically with doping concentration.Moreover,the measurements for devices with different cavity lengths provide evidence that the free carrier absorption causes the waveguide loss also to increase monotonically.Interestingly the observed maximum lasing temperature is best at a doping density of 3.6×1010cm-2. | Liu H C Luo H Ban D Waichter M Song C Y Wasilewski Z R Buchanan M Aers G C SpringThorpe A J Cao J C Feng S L Williams B S Hu Q | 2006 | Journal of Semiconductors2006，27，4： | 2 |
| 2 | Study on the phase behavior of cholesterol-acetone-CO2 system and recrystallization of cholesterol by antisolvent 显示文摘 | Liu Z M Wang J Q Song L P | 2002 | J Supercrit Fluids2002，24，： | 2 |
| 3 | Effect of Temperature on reduction of CaSO4 oxygen carrier in chemical- looping combustion of simulated coal gas in a fluidized bed reactor显示文摘 | SONG Q XIAO R DENG Z SHEN L XIAO J ZHANG M | 2008 | Ind Eng Chem Res2008，47，21： | 1 |
| 4 | Nitrogen transfer of fuel-N in chemical looping combustion 显示文摘 | Song T Shen L H Xiao J Chen D Q Gu H M Zhang S W | 2012 | Combustion and Flame2012，159，3： | 1 |
| 5 | Effect of heat treatment on microstructure and mechanical properties of ZrC particles reinforced tungsten-matrix composites显示文摘 | ZHANG T Q WANG Y J ZHOU Y SONG G M | 2009 | Materials Science and Engineering A2009，512，： | 1 |
| 6 | Chemical-looping combustion of methane with CaSO4 oxygen carder in a fixed bed reactor 显示文摘 | SONG Q XIAO R DENG Z ZHANG H SHEN L XIAO J ZHANG M | 2008 | Energy Convers Manage2008，49，11： | 1 |
| 7 | Oral vaccination of mice against Heli- cobacter pylori with recombinant Lactococcus lactis expressing ure- ase subunit B显示文摘 | GU Q SONG D ZHU M | 2009 | FEMS Immunol Med Microbiol2009，56，3： | 1 |
| 8 | Volatiles from Ficus hispida and their attractiveness to fig wasps 显示文摘 | Song Q S Yang D R Zhang G M | 2001 | l Chem Ecol2001，27，10： | 1 |
| 9 | A comprehensive method for multilingual video text detection,localization,and extraction显示文摘 | Lyu M R Song J Q Cai M | 2005 | IEEE Transactions on Circuits and Systems for Video Technology2005，15，2： | 1 |
| 10 | Effect of the content of urea groups on the particle size in water-borne polyurethane or polyurethane/polyacrylate dispersions显示文摘 | Song C M Yuan Q L | 2004 | Journal Colloid & Polymer Science2004，282，6： | 1 |
| 11 | Formation of the beef flavor precursors and their correlation with chemical parameters during the controlled thermal oxidation of tallow 显示文摘 | Song S Q Zhang X M Khizar Hayat | 2011 | Food Chemistry2011，124，1： | 1 |
| 12 | Contribution of sulfur-containing compounds to the colour-inhibiting effect and improved antioxidant activity of Maillard reaction products of soybean protein hydrolysates显示文摘 | Huang M G Liu P Song S Q | 2011 | J Sci Food Agric2011，91，： | 1 |
| 13 | Embedding new data points for manifold learning via coordinate propagation显示文摘 | Xiang S M Nie F P Song Y Q | | 0，，2： | 1 |
| 14 | The Effect of Lead Time and Demand Uncertainties in(r,q)Inventory Systems显示文摘 | Song J S Zhang H Q Hou Y M Wang M Z | 2010 | Operations Research2010，58，1： | 1 |
| 15 | Statistical analysis and combination forecasting of environmental efficiency and its influential factors since China entered the WTO:2002-2010-2012显示文摘 | Song M L Zhang L L An Q X | 2013 | Journal of Cleaner Production2013，42，： | 1 |
| 16 | Effect of ZrC particle size on microstructure and room temperature mechanical properties of ZrCp/W composites显示文摘 | ZHANG T Q WANG Y J ZHOU Y SONG G M | 2010 | Materials Science and Engineering A2010，527，： | 1 |
| 17 | Microstructure and drysliding wear behavior of laser clad Ni-based alloy coating withthe addition of SiC显示文摘 | Li Q Song G M Zhang Y Z | 2003 | Wear2003，254，34： | 1 |
| 18 | Diamondoid hydrocarbons as a molecular proxy for thermal maturity and oil cracking: Geochemical models from hydrous pyrolysis显示文摘 | Wei Z B Moldowan J M Zhang S C Hill R Jarvie D M Wang H T Song F Q Fago F | 2007 | Org Geochem2007，38，2： | 1 |
| 19 | 查看详情显示文摘 | Yan L W Duan X R Ding X T Dong J Q Yang Q W Liu Y Zou X L Liu D Q Xuan W M Chen L Y Rao J Song X M Huang Y Mao W C Wang Q M Li Q Cao Z Li B Cao J Y Lei G J Zhang J H Li X D Chen W Cheng J Cui C H Cui Z Y Deng Z C Dong Y B Feng B B Gao Q D Han X Y Hong W Y | | 0，，： | 1 |
| 20 | Tear function and goblet cell density after pterygium excision显示文摘 | Li M Zhang M Lin Y Xiao Q Zhu X Song S | | 0，，02： | 1 |
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