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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 | Impact of changing societal trends on the spread of infectious in American and Canadian homes 显示文摘 | SATTAR S A TETRO J SPRINGTHORPE V S | 1999 | American Journal of Infection Control1999，27，6： | 1 |
| 3 | Investigation of opportunistic pathogens in municipal drinking water under different supply and treatment regimes 显示文摘 | Pryor M Springthorpe S Riffard S | 2004 | Water Sci Technol2004，50，： | 1 |
| 4 | Fate of Cryptosporidium oocysts, Giardia cysts, and microbial indicators during wastewater treatment and anaerobic sludge digestion 显示文摘 | Chauret C Springthorpe S Sattar S | 1999 | Canadian Journal of Microbiology1999，45，3： | 1 |
| 5 | The influence of temperature on Norovirus inactivation by monochloramine in Potable Waters: testing with routine norovirus as a surrogate for human norovirus显示文摘 | KELLER R TETRO J A SPRINGTHORPE V S | 2010 | Food Environ Viro12010，2，： | 1 |
| 6 | Transfer of bacteria from fabrics to hands and other fabrics: development and application of a quantitative method using Staphylococcus aureus as a model显示文摘 | Sattar S A Springthorpe S Mani S | 2001 | Journal of Applied Microbiology2001，90，6： | 1 |
| 7 | Chemical disinfection of virus contaminated suffaces显示文摘 | Springthorpe V S Satter S A | 1990 | Crit Rev Environ Control1990，20，： | 1 |
| 8 | Transfer of bacteria from fabrics to hands and other fabrics:development and application of a quantitative method using Staphylococcus aureus as a model显示文摘 | Sattar S A Springthorpe S Mani S | 2001 | Journal of Applied Microbiology2001，90，6： | 1 |
| 9 | Competition for mercury between river sediment and bacteria 显示文摘 | RAMAMOORTHY S SPRINGTHORPE S KUSHNER D J | 1977 | Bulletin of Environmental Contamination and' Toxicology1977，17，5： | 1 |
| 10 | Transfer of bacteria from fabrics to hands and other fabrics: development and application of a quantitative method using Staphylococcus aureus as a model 显示文摘 | Sattar SA Springthorpe S Mani S | 2001 | Journal of Applied Microbiology2001，90，6： | 1 |
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