Red-Green-Blue Colloidal Quantum Dots for Full Spectrum Microlasers

用于全光谱微型激光器的红-绿-蓝胶体量子点

• 批准号: 1128331
• 负责人: Arto Nurmikko
• 金额: $ 30.91万
• 依托单位: Brown University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1128331&HistoricalAwards=false
• 关键词: Red; Green; Blue; Colloidal; Quantum

Objective: To penetrate the full visible spectrum using a single nanocrystalline material system, based on colloidal semiconductor quantum dots, to develop coherent microemitters and their arrays. The proposed approach is guided by two key research objectives: (a) methods to create ultrahigh density closely-packed quantum dot thin film red- green-blue optical gain media which can be tightly adhered on selected substrates and microscale patterned surfaces, and (b) integration of optical microresonators with the quantum dot media which incorporate the high gain medium to enable operation for a color-tunable microlaser at room temperature under practical and realistic excitation conditions. Intellectual merit: At the basic level, research aims to maximize the optical gain in densely packed colloidal quantum dot-based microresonators by investigating fundamental competition and interaction within interacting quantum dot excitonic states between radiative (stimulated emission) and nonradiative processes. At the applied level, this knowledge is employed to design low-cost thin film gain media which can be patterned and/or conformally deposited and integrated within optical microcavities for microscale lasers. Broader impacts: The single material based full spectrum coherent microemitters may offer a transformative means to develop new types pixelated laser projection devices, a technologically important outcome for portable displays. The PI aims to recruit women and other minority students under the REU program and will participate in outreach events with students and teachers through the already established program at Brown with Providence Public Schools system. Graduate students will have opportunity to work with a start-up company to gain experience transitioning research to technologies.

目的：使用基于胶体半导体量子点的单个纳米晶体材料系统穿透完整的可见光谱，以开发相干的微型发明器及其阵列。所提出的方法以两个关键的研究目标为指导：（a）创建超高密度紧密包装的量子点薄膜红色 - 绿色蓝色光学增益媒体的方法，该培养基可以紧密粘附在选定的基板和显微镜图案表面上，以及（b）将光学介质与量化媒体融合的媒介的良好的操作，以使培养基逐渐增长，以使培养基逐渐增长，以使培养基逐步合并一个良好的操作。现实的激发条件。智力优点：在基本水平上，研究旨在通过研究辐射（刺激的发射）和非自律过程之间相互作用的量子点激素状态中的基本竞争和相互作用，从而最大程度地提高基于基于量子量子点的微点的光学增益。在应用水平上，该知识用于设计低成本的薄膜增益介质，该培养基可以被图案化和/或共同沉积和集成在光学微腔内微观激光器中。 更广泛的影响：基于单材料的全光谱相干微型发明器可能会提供一种变革性的手段来开发新型类型的像素化激光投影设备，这是便携式显示器的技术重要结果。 PI旨在根据REU计划招募妇女和其他少数族裔学生，并通过与Providence Public Sc​​hools System在Brown已经建立的计划一起与学生和老师一起参加外展活动。研究生将有机会与一家初创公司合作，以获得过渡到技术的经验。