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All Presentation Materials can be downloaded at http://nzc.iap.ac.cn//uploadppt/NZCSS3rd-PDF.tar.gz Please Respect the copyright of the authors when use them! Attachment: Program Schedule Monday, October 27, 2008 @ Institute of Atmospheric Physics 09:00 Openning of the Summer School Prof. Huijun Wang Director of Nansen-Zhu International Research Centre Director-General of IAP, Chinese Academy of Sciences Chair: Prof. Huijun Wang (NZC/IAP) 09:10 Short-term climate predictability in Asia Prof. Huijun Wang Nansen-Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of Sciences Beijing, China 09:50 Climate Couplings between Low and High Latitudes: The Role of the Ocean Circulation on Decadal to Multidecadal Time Scales Prof. Tore Furevik Geophysical Institute University of Bergen Bergen, Norway 10:30-11:00 Tea/Coffee 11:00 Distinct Modes of the East Asian Summer Monsoon Prof. Bingyi Wu Chinese Academy of Meteorological Sciences China Meteorological Administration Beijing, China 11:40 Numerical simulations on the East Asian climate Prof. Tianjun Zhou Institute of Atmospheric Physics Chinese Academy of Sciences Beijing, China 12:20-13:20 Lunch Chair: Prof. Ola M. Johannessen (NERSC) 13:20 Northern Hemisphere Circumpolar Vortex variations during winter Prof. Xiuqun Yang Department of Atmospheric Sciences Nanjing University Nanjing, China 14:00 Arctic Climate Change Prof. Ola M. Johannessen Nansen Environmental and Remote Sensing Center Bergen, Norway 14:40 Greenland Ice Sheet mass balance: Methods and results Dr. Kirill Khvorostovskiy Nansen Environmental and Remote Sensing Center Bergen, Norway 15:20-15:30 Tea/Coffee 15:30-16:30 Poster Presentation (2 overheads for each) Chair: Prof. Yongqi Gao (IAP/NERSC) 16:30 European Space Agency (ESA) contribution to climate change monitoring Prof. Johnny A. Johannessen Nansen Environmental and Remote Sensing Center Bergen, Norway/ Chairman of the Earth Science Advisory Committee in ESA 17:10 Energy issue and climate change Dr. Anton G. Kjelaas Norwegian Research Council, Oslo/ Nansen Environmental and Remote Sensing Center, Bergen Norway Tuesday, October 28, 2008 @ Institute of Atmospheric Physics Chair: Prof. Benkui Tan (Peking University) 09:00 Arctic atmospheric circulation anomalies and their impacts on East Asia Prof. Bingyi Wu Chinese Academy of Meteorological Sciences China Meteorological Administration Beijing, China 09:40 Asian-Pacific Oscillation, Asian Monsoon rainfall, and Tropica
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报告题目：Quantum Cascade Lasers 主 讲 人：prof. Claire Gmachl Department of Electrical Engineering, and MIRTHE,Princeton University, Olden St., Princeton, NJ 08544, USA 地 点：大气所40号楼215会议室 时 间：2008年8月27日下午3：00－4：00 摘 要： Quantum Cascade (QC) lasers are a rapidly evolving new type of semiconductor laser that emits in the mid-infrared to terahertz range of the spectrum. The active material of the lasers consists of many hundreds of alternating, only few atomic layers thick semiconductor layers. By choice of the layer thicknesses, the laser properties – foremost the emission wavelength – can be tailored essentially at will. Therefore, one can use mature semiconductor materials that have been developed over many decades of telecommunications R&D, and create new laser sources at wavelengths between 3 and 300 m. Aside from their considerable wavelength tailorability, the lasers’ key strengths include high optical power, high operating temperature, inherent compactness and reliability, and a fascinating design potential. We will first provide an easy and illustrative introduction into QC lasers, followed by specific laser aspects for select applications. The latter include foremost chemical trace gas sensing, as well as infrared counter measures and free-space optical communication. In the second part of the presentation, we will discuss an example of how the lasers continue to hold surprises, and how these are harnessed to design better and more functional lasers. In so-called “cascaded” QC lasers, laser action can be induced in portions of the laser bandstructure that is generally not accessible to all conventional semiconductor lasers.
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