U.S.-Korea Cooperative Research on Electro-optic Field Sensors and Their Applications

9732516张本奖项旨在资助伦斯勒理工学院物理、应用物理与天文学系张喜成博士与韩国全北国立大学物理教育系玄石康教授开展为期24个月的电光场传感器及其应用合作研究项目。最初的大部分活动将集中于向韩国合作者学习用于生长和制造高质量ZnTe晶体的技术。这些电光晶体将被用作宽带场传感器，用于自由传播的超宽带脉冲太赫兹电磁波(THz光束)的相干测量。此次合作将为张博士目前由美国国家科学基金会资助的研究增加一个国际维度。ECS-9701486。这位美国研究人员预计，这一新的合作将有利于他获得NSF资助的正在进行的研究。PI报告说，ZnTe传感器非常敏感，它不需要金属天线和电气连接，因为金属天线和电气连接可能会干扰电磁环境的准确测量和表征。其他优点包括通过降低对电气噪声拾取的敏感度来提高测量精度，从而不再需要传感器头上的电力；传感器头可以放置在恶劣或偏远的区域；该设备的紧凑性允许在较小的空腔中进行测量。该项目与美韩合作科学计划的目标相关，该计划旨在通过交流科学信息、想法、技能和技术以及通过在互利问题上的合作来提高美国和韩国科学家和工程师之间的合作水平。该项目将为一名美国研究生提供在根本性和技术上具有重要意义的体育和光电子学研究领域的国际培训和经验。韩国的参与得到了韩国科学与工程基金会(KOSEF)的支持。***

9732516 Zhang This award provides funds to permit Dr. Xi-Cheng Zhang, Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, to pursue with Professor Hyun-Shik Kang, Department of Physics Education, Chonbuk National University, Korea, for 24 months, a program of cooperative research on electro-optic field sensors and their applications. Much of the activity initially will concentrate on learning from the Korean collaborator techniques used for growth and fabrication of high quality ZnTe crystals. These electro-optic crystals then will be used as broad band field sensors for the coherent measurement of freely-propagating ultra wideband pulsed terahertz electromagnetic waves (THz beams). The present collaboration will add an international dimension to Dr. Zhang's research presently funded under NSF Grant No. ECS-9701486. The U.S. researcher expects this new collaboration to be beneficial to ongoing research under his NSF grant. The PI reports that the ZnTe sensor is so sensitive that it eliminates the need for metallic antennas and electrical connections that can interfere with accurate measurement and characterization of the electromagnetic environment. Other benefits include improved measurement accuracy by reducing susceptibility to electrical noise pick up, thus, eliminating the need for electrical power at the sensor head; the sensor head can be placed in hostile or remote areas; and the device's compactness allows measurement in small cavities. This project is relevant to the objectives of the U.S.-Korea Cooperative Science Program which seeks to increase the level of cooperation between U.S. and Korean scientists and engineers through the exchange of scientific information, ideas, skills, and techniques and through collaboration on problems of mutual benefit. This project will provide international training and experience for a U.S. graduate student in a fundamentally and technologically significant area of ph otonics and optoelectronics research.. Korean participation is supported by the Korea Science and Engineering Foundation (KOSEF). ***