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Arkansas Center for Nanodevices (ACEND)

阿肯色州纳米器件中心 (ACEND)

基本信息

批准号：
0082975
负责人：
Yujie Ding
金额：
$ 50万
依托单位：
University of Arkansas
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2000
资助国家：
美国
起止时间：
2000-08-15 至 2003-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0082975&HistoricalAwards=false
关键词：
Arkansas Center Nanodevices ACEND

项目摘要

This project focuses on the basic science needed to realize new nanosize devices specifically related to optoelectronic and optical communications. It aims at forming the nucleus of the Arkansas Center for Nanoscale Devices (AceND). Research will focus on the design, epitaxial growth, fabrication, modeling, and testing of nanodevices for generating and detecting coherent waves over a wide range of spectral regions covering IR and mid-IR (1-6mm), far-IR (6-100mm ) and THz (100-1000mm). The development of coherent sources and detectors in these wavelength ranges will impact medicine, food inspection, pollution control, communications, and remote sensing. Quantum-dot detectors and lasers, optical parametric oscillators and amplifiers, mid-IR and THz emitters, and inter sub-band lasers are included among the examples of specific devices to be investigated. Currently, two categories of quantum are being investigated (i.e., self-assembled dots grown by Molecular Beam Epitaxy in a vacuum chamber and colloidal dots synthesized by chemical methods either in solution or in certain host matrices). Although the two categories are related to each other by quantum confinement and other size-dependent physical properties, each category differs from the other based on its popular size range, fabrication technology, and promising applications. ACeND scientists will integrate active research on both categories of quantum dots to enhance the understanding of quantum effects in quantum dots, and thus the capability of implementing and optimizing nanodevices based on them.

该项目侧重于实现新的纳米尺寸器件所需的基础科学，特别是与光电子和光通信相关的器件。它的目标是形成阿肯色州纳米设备中心(AceND)的核心。研究将集中于纳米器件的设计、外延生长、制造、建模和测试，用于在涵盖IR和中IR(1-6 mm)、远IR(6-100 mm)和THz(100-1000 mm)的广泛光谱区域产生和检测相干波。在这些波长范围内发展相干源和探测器将对医药、食品检验、污染控制、通信和遥感产生影响。量子点探测器和激光器、光学参量振荡器和放大器、中红外和太赫兹发射器以及子带间激光器都包括在要研究的具体设备的例子中。目前，人们正在研究两类量子点(即在真空室中分子束外延生长的自组装点和通过化学方法在溶液或某些基质中合成的胶体点)。尽管这两个类别通过量子限制和其他大小相关的物理性质相互关联，但每一个类别都因其流行的尺寸范围、制造技术和前景广阔的应用而有所不同。ACeND科学家将整合对这两类量子点的活跃研究，以增强对量子点中量子效应的理解，从而增强基于量子点实现和优化纳米设备的能力。