STTR Phase I: Fabrication of Blue/UV Lasers and Laser Systems

STTR 第一阶段：蓝色/紫外激光器和激光系统的制造

• 批准号: 0539033
• 负责人: Chad Roller
• 金额: $ 10万
• 依托单位: EKIPS TECHNOLOGIES INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-01-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0539033&HistoricalAwards=false
• 关键词: STTR; Phase; Fabrication; Blue; UV

This Small Business Technology Transfer (STTR) Phase I research project proposes to develop new methods for blue/UV laser fabrication. These new devices will have the competitive advantages of higher emission intensities, higher reliability, and ability to extend emission into the deep UV spectral range. Fabricated devices will consist of cleaved AlGaN epitaxial layer structures on the tips of copper bars. Such semiconductor material packaging will significantly improve heat dissipation from large band gap AlGaN semiconductor active region materials. Enhanced active region heat dissipation will allow operation with much higher injection currents and correspondingly higher light output. Research will focus on adapting a metallization, bonding, and cleaving technique originally developed at the University of Oklahoma for mid-IR laser fabrication using IVVI semiconductor epitaxial layer materials. The project will also focus on developing a low cost electronics system capable of measuring short fluorescence lifetimes. Work on the electronics portion of this project will be devoted to the design of a small circuit board populated with a low cost digital signal processor and related components. Firmware will also be written to perform a coherent under-sampling measurement algorithm that will enable accurate measurement of photodetector decay transients of 1 nanosecond or less.Advances in fabricating improved blue/UV light emitters and low cost electronics for fast photodetector signal measurements will enable development of improved chemical and biological (CB) sensors. An important outcome will be compact and low power consumption deep UV light sources; devices that will enhance the capabilities of CB sensors based on fluorescence and Raman scattering detection principles. A handheld CB sensor for distinguishing between a harmless inorganic material and a potentially harmful pathogenic biological material is just one example of a product that can be developed as a result of this project. In addition, improved blue and UV emitters can also be used for optical data storage and solid state lighting.

这个小型企业技术转移（STTR）I阶段研究项目提议开发用于蓝色/紫外线激光制造的新方法。这些新设备将具有较高的排放强度，更高的可靠性以及将排放扩展到深紫外光谱范围的能力的竞争优势。制造的设备将由铜棒尖端上的裂解的Algan外延层结构组成。这种半导体材料包装将显着改善大型带隙Algan半导体活动区域材料的热量耗散。增强的活性区域散热将允许使用更高的注入电流和相应更高的光输出运行。研究将着重于适应最初在俄克拉荷马大学使用IVVI半导体外延层材料开发的金属化，粘结和切割技术，用于中级激光制造。该项目还将着重于开发能够测量短荧光寿命的低成本电子系统。该项目的电子设备部分的工作将用于设计，该小路板填充了低成本的数字信号处理器和相关组件。还将编写固件以执行连贯的降采样测量算法，该算法将能够准确测量1纳秒或更少的光电探测器衰减瞬变。制造改进的蓝色/UV光发射器和低成本电子设备用于快速光电材料信号测量的预付款将启用改进的化学和生物学（CB）。一个重要的结果将是紧凑而低功耗的深紫外线光源；将根据荧光和拉曼散射检测原理增强CB传感器功能的设备。用于区分无害无机材料和潜在有害的致病生物学材料的手持式CB传感器只是该项目可以开发的产品的一个例子。此外，改进的蓝色和紫外线发射器也可以用于光学数据存储和固态照明。