\Whispering-Gallery Microlaser Using Semiconductor Nanoparticles

回廊微激光器使用半导体纳米颗粒

• 批准号: 0601362
• 负责人: Albert Rosenberger
• 金额: --
• 依托单位: Oklahoma State University
• 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: 2006-06-01 至 2010-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0601362&HistoricalAwards=false
• 关键词: Whispering; Gallery; Microlaser; Using; Semiconductor

ECS-0601362Whispering-Gallery Microlaser Using Semiconductor NanoparticlesAlbert T. Rosenberger, Donna K. Bandy, Bret N. FlandersDepartment of Physics, Oklahoma State UniversityIntellectual Merit: This project investigates ultralow-threshold lasing of individual fused-silica microspheres coated with semiconductor quantum dots. The pump laser input and the microlaser emission are coupled in and out of the microsphere's whispering-gallery modes by tapered optical fibers. The objectives are to: (1) advance the understanding of microlaser operation, through studies of the origin of such low thresholds; (2) extend the range and controllability of microlaser operation - for example, increasing the 1240-1780-nm lasing wavelength range observed with HgTe and HgCdTe by varying the size and composition of the nanoparticles (also using PbSe and PbS); (3) further develop dielectrophoretic methods for controlled coating of microresonators with nanoparticles; and (4) demonstrate practical application of these microlasers - for example, the sensing of atmospheric trace gases such as methane or carbon monoxide. Three exciting new areas of research are resonant optical enhancement in microspheres; efficient optical emission from semiconductor nanoparticles; and directed assembly of nanoparticles into structures using dielectrophoresis. This work will advance fundamental research by facilitating studies of cavity quantum electrodynamics using quantum dots and whispering-gallery modes.Broader Impacts: This work will strengthen ties with the Oklahoma Network for Nanostructured Materials (NanoNet). The University's multidisciplinary Photonics degree program will also benefit from this project. Both the NanoNet and the Photonics program recruit students from underrepresented groups, and the PIs will encourage the participation of undergraduates. One co-PI and one graduate student are members of underrepresented groups. The graduate students involved will learn fundamental techniques as well as marketable skills. They will also be directly involved in dissemination of research results through conference presentations and journal publications. In addition to their fundamental interest, the microlasers also have numerous potential applications. The PI has a License Agreement with Nomadics, Inc., which is interested in developing commercial products based on the microlasers.

ECS-0601362使用半导体纳米粒子Alberbert T. Rosenberger，Donna K. Bandy，Bret N.俄克拉荷马州立大学智能上的弗兰德斯家分部门，该项目调查了对个体福特的量子量的量子，该项目调查了对量级的量子，该项目调查了俄克拉荷马州立大学的素质量。 通过锥形光纤将泵激光输入和微叠剂发射耦合在微球的耳语窃窃私语模式中。 这些目标是：（1）通过研究这种低阈值的起源来提高对微叠剂操作的理解； （2）扩展微叠剂操作的范围和可控性 - 例如，增加了使用HGTE和HGCDTE观察到的1240-1780-NM激光波长范围（也使用PBSE和PBS）来改变HGTE和HGCDTE。 （3）进一步开发了用于用纳米颗粒的微孔子控制涂层的介电性方法； （4）证明了这些微型塑料的实际应用 - 例如，传感甲烷或一氧化碳等大气痕量。 三个令人兴奋的新研究领域是微球的共振光学增强。半导体纳米颗粒的有效光发射；并将纳米颗粒的定向组装成使用介电性的结构。 这项工作将通过使用量子点和窃窃私语模式来促进腔量子电动力学的研究来提高基本研究。Broader的影响：这项工作将加强与俄克拉荷马州纳米结构材料网络（Nanonet）的联系。 该大学的多学科光子学位课程也将从该项目中受益。 Nanonet和Photonics计划都从代表性不足的群体中招募学生，PIS将鼓励大学生的参与。 一名Co-Pi和一名研究生是代表性不足的群体的成员。 参与的研究生将学习基本技术以及可销售的技能。他们还将通过会议演讲和期刊出版物直接参与研究研究结果。 除了其基本利益外，微型塑料还具有许多潜在的应用。 PI与Nomadics，Inc。有许可协议，该协议有兴趣根据微型塑料开发商业产品。