DIRECT ELECTRICAL MODULATION OF LIGHT EMISSION AT SUB-LIFETIME SCALES

亚寿命尺度光发射的直接电调制

• 批准号: 1408009
• 负责人: Rashid Zia
• 金额: $ 37.5万
• 依托单位: Brown University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-06-01 至 2019-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1408009&HistoricalAwards=false
• 关键词: DIRECT; ELECTRICAL; MODULATION; LIGHT; EMISSION

The objective of this program is to develop a new architecture for high-speed phosphorescent devices based on the dynamic control of light emission at sub-lifetime speeds. Direct, sub-lifetime modulation of light emission promises to enable the development of compact, high-speed phosphorescent devices. Such devices would have a transformative impact on communication, display, and lighting technologies as well as applications in biological and chemical sensing. The educational aspects include development of a laboratory-intensive Photonics course that will emphasize the design of dynamic and reconfigurable optical systems; development of a new Advanced Spectroscopy Workshop for researchers, students, and teachers in Rhode Island; expansion of the SearchLight Project to help promote the new Design Workshop maker space in the Laboratory for Engineering, especially to train and support local community members.The intellectual significance is centered on the investigation of a new method for modulating the slowly decaying emitters that form the basis for many modern optoelectronic devices. Rather than modulating the excited state population, the goal is to modify the local optical environment and directly modulate emission rates into different modes within the excited state lifetime. The approach involves a program to demonstrate an electrically-modulated light emitting device based upon the sub-lifetime modulation of erbium emission near the telecom-wavelength of 1550 nm. In addition, a new material platform for high-speed modulation based on leveraging the electronic and vibronic emission from transition-metal phosphors will be investigated. This program will enhance the understanding of dynamic processes in both light emitting and phase change materials.

该计划的目标是开发一种基于动态控制亚寿命速度下发光的高速磷光器件的新架构。光发射的直接、亚寿命调制有望使紧凑、高速磷光器件的开发成为可能。这些设备将对通信、显示和照明技术以及生物和化学传感应用产生变革性影响。教育方面包括一个实验室密集的光子学课程，将强调动态和可重构光学系统的设计的发展;一个新的高级光谱学研讨会的研究人员，学生和教师在罗得岛的发展;扩大探照灯项目，以帮助促进新的设计研讨会制造商在工程实验室的空间，特别是培训和支持当地社区成员。智力意义集中在研究一种调制缓慢衰减发射体的新方法，这种发射体构成了许多现代光电设备的基础。而不是调制的激发态人口，目标是修改本地的光学环境，并直接调制成不同的模式内的激发态寿命的发射率。 该方法涉及一个程序，以证明一个电调制的发光器件的基础上的子寿命调制的铒发射附近的电信波长为1550 nm。 此外，将研究基于利用过渡金属磷光体的电子和振动发射的用于高速调制的新材料平台。本课程将加强对发光材料和相变材料动态过程的理解。