CAREER: Near-infrared Intersubband Transitions in Low-dimensional Semiconductor Structures: Material, Devices and Physics

职业：低维半导体结构中的近红外子带间跃迁：材料、器件和物理

• 批准号: 0131945
• 负责人: Holger Schmidt
• 金额: $ 37.5万
• 依托单位: University of California-Santa Cruz
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-03-01 至 2008-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0131945&HistoricalAwards=false
• 关键词: CAREER; Near; infrared; Intersubband; Transitions

True excellence in a career as university professor requires commitment, creativity and excellence in both research and education. In this proposal, a plan for implementing a research and education program in Electrical Engineering at the University of California, Santa Cruz is presented.In the research part of the proposal, the investigation of intersubband transitions in low-dimensional semiconductor quantum structures in the near-infrared wavelength range is put forward as an area of research activity with long-term potential for advancing materials science, engineering and physics. As optical networks become a reality and solutions for higher data bit rates are sought, intersubband transitions are an attractive alternative to currently existing technologies for pushing the limits of optical communications to higher bandwidths. Increasing the bandwidth is essential for building faster and less costly communication products and systems. The material properties of antimony-based heterostructures for near-infrared intersubband transitions will be studied. This includes determining band offsets and optical nonlinearities as well as the growth of self-assembled quantum dots. Secondly, new devices such as ultrafast wavelength converters and photodetectors will be designed and realized. Finally, new physics can be explored. Examples are nonclassical light emission from quantum dots at room temperature and quantum interference effects such as electromagnetically induced transparency (EIT) in intersubband transitions.The educational aspects of this proposal are tailored to improve the educational programs in Electrical Engineering at the Universitt of California, Santa Cruz, on several levels: within the University -lf, the local community, as well as the global scientific community at large. To this end, a number of measures are proposed for each community. Within UC Santa Cruz, the emphasis lies on building up the educational program of a very new department by developing new classes for the curriculum and introducing new ideas for classroom instruction. Activities involving the local community have a special emphasis on interaction with students who are at critical points in their school careers. Examples are open houses for high school seniors and lectures and demonstrations at middle schools to expose students at a younger age to science. Finally, the paramount importance of global interaction between students and scholars is recognized by proposing a number of programs, which institutionalize and foster relations, that will be beneficial to all participants. This includes establishing partner schools for exchange programs and joint educational projects, for example with the German Academic Exchange Service(DAAD).

在大学教授的职业生涯中，真正的卓越需要奉献精神、创造力以及在研究和教育方面的卓越表现。在这份提案中，提出了一项在加州大学圣克鲁斯分校实施电气工程研究和教育计划的计划。在该计划的研究部分，将研究近红外波段低维半导体量子结构的子带间跃迁作为一个具有长期潜力的研究活动领域，以促进材料科学、工程和物理的发展。随着光网络成为现实，人们寻求更高数据比特率的解决方案，子带间转换是将光通信的极限推向更高带宽的当前现有技术的有吸引力的替代方案。增加带宽对于构建速度更快、成本更低的通信产品和系统至关重要。我们将研究用于近红外亚带间跃迁的Sb基异质结构的材料性质。这包括确定波段偏移量和光学非线性，以及自组装量子点的生长。其次，将设计和实现新的器件，如超快波长转换器和光电探测器。最后，可以探索新的物理学。例如室温下量子点的非经典光发射和子带间跃迁中的电磁诱导透明(EIT)等量子干扰效应。这项提议的教育方面是为了在几个层面上改进加州大学圣克鲁斯分校的电气工程教育计划：在大学内部，当地社区，以及整个全球科学界。为此，为每个社区提出了若干措施。在加州大学圣克鲁斯分校，重点在于通过为课程开发新的班级和引入新的课堂教学理念来建立一个非常新的部门的教育计划。涉及当地社区的活动特别强调与处于学校职业生涯关键时刻的学生互动。例如，高中高年级学生的开放日，以及中学的讲座和示威活动，让年龄较小的学生接触科学。最后，通过提出一些方案，使学生和学者之间的关系制度化并促进关系，这将使所有参与者受益，从而认识到学生和学者之间全球互动的极端重要性。这包括为交换项目和联合教育项目建立伙伴学校，例如与德国学术交流服务(DAAD)。