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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 | Influence of PbF2 doping on scintillation properties of PbWO4 single crystals显示文摘 | Liu X C Feng X Q Hu G Q | 2002 | Phys Status Solidi (A)2002，190，1： | 2 |
| 3 | Influence of Eutrophication on the Distribution of Total Mercury and Methylmercury in Hydroelectric Reservoirs显示文摘 | Meng Bo Feng X B Chen C X Qiu G L Sommar J Guo Y N Liang P Wan Q | 2010 | EN2010，，5： | 2 |
| 4 | The structural and magnetic properties of Mn2 xFexNiGa Heusler alloys显示文摘 | LUO H Z MENG F B FENG Z Q LI Y X ZHU W WU G H ZHU X X JIANG C B XU H B | 2010 | J Appl Phys2010，107，01： | 1 |
| 5 | Soil carbon in desertifled land in relation to site characteristics 显示文摘 | Feng Q Endo K N Guodong C | 2002 | Geoder- ma2002，106，1： | 1 |
| 6 | 查看详情显示文摘 | Liao Y Wang Y Q Feng X X Wang W C Xu F J Zhang L Q | | 0，，： | 1 |
| 7 | The TIL commissioning and performance显示文摘 | X Zhang W Zheng X Wei F Jing Z Sui K Zheng Q Xu X Yuan X Jiang L Yang P Ma M Li J Wang D Hu S He F Li Z Peng B Feng H Zhou L Guo X Li X Zhang J Su Q Zhu H Yu R Zhao C Ma H He D Fan W Zhang | 2008 | Journal of Physics: Conference Series2008，，3： | 1 |
| 8 | Nitrate removal from groundwater by cooperating heterotrophic with autotrophic denitrification in a biofilm--eleetrode reactor 显示文摘 | Zhao Y X Feng C P Wang Q H | 2011 | Journal of Hazardous Materials2011，192，3： | 1 |
| 9 | Materials Characterization显示文摘 | Feng J C Wu H Q He J S | 2005 | 54:992005，54，： | 1 |
| 10 | Erlotinib versus chemotherapy as first-line treatment for patients with advanced EGFR mutation-positive non-small cell lung cancer (OPTIMAL, CTONG-0802):a multicentre open-label, randomised, phase 3 study显示文摘 | Zhou C Wu Y L Chen G Y Feng J Liu X Q Wang C | 2011 | Lancet Oncol2011，12，： | 1 |
| 11 | Treatment of three- and four-part proximal humeral fractures with locking proximal humerus plate显示文摘 | Sun J C Li Y L Ning G Z Wu Q Feng S Q | 2013 | Eur J Orthop Surg Traumatol2013，23，： | 1 |
| 12 | Implication of AMP-activated protein kinase and Akt-regulated survivin in lung cancer chemopreventive activities of deguelin 显示文摘 | Jin Q Feng L Behrens C | 2007 | Cancer Res2007，67，11： | 1 |
| 13 | Effects of polyethlene oxide chains on the performance of polycarboxylate type water reducers 显示文摘 | Li C Z Feng N Q Li Y D | 2005 | Cement and Concrete Research2005，35，5： | 1 |
| 14 | Estimation of in situ stress along deep tunnels buried in complex geological conditions显示文摘 | ZHANG C Q FENG X T ZHOU H | 2012 | International Journal of Rock Mechanics and Mining Sciences2012，52，6： | 1 |
| 15 | Power system operation risk assessment using credibility theory显示文摘 | Feng Y Q Wu W C Zhang B | 2008 | IEEE Transactions on Power Systems2008，23，3： | 1 |
| 16 | Use of NTrap during ureteroscopicHolmium: YAG laser lithotripsy of upper ureteral calculi 显示文摘 | Feng C Ding Q Jiang H | 2012 | Minim Invasive Ther Allied Techno12012，21，2： | 1 |
| 17 | Use of NTrap during ureteroscopic Holmium: Y AG laser lithotripsy of upper ureteral calculi显示文摘 | Feng C Ding Q Jiang H | 2012 | Minim Invasive Ther Allied Technol2012，21，2： | 1 |
| 18 | 查看详情显示文摘 | Dong Q F Manns D C Feng G P | | 0，，： | 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 | 查看详情显示文摘 | Wu Q H Zhao G Y Feng C Wang C Wang Z | | 0，，44： | 1 |
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