CAREER: Two-Photon Pumped Lasing Using Semiconductor Nanostructures by Design

职业：设计使用半导体纳米结构的双光子泵浦激光

• 批准号: 0846818
• 负责人: Jian Xu
• 金额: $ 40万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0846818&HistoricalAwards=false
• 关键词: CAREER; Two; Photon; Pumped; Lasing

"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)."The ultimate goal of this research is to lay a solid foundation for the development and application of a new generation of two-photon pumped lasers based on engineered semiconductor nanostructures, whereby the strong electronic and/or optical confinements in nanocrystal quantum dots, nano-rods, wires, and disks will impact the nonlinear coherent upconversion process for greatly enhanced lasing performance.Intellectual Merit:The research project is targeted at developing a new generation of two-photon pumped laser devices based on semiconductor nanostructures, whereby the strong electronic and/or optical confinements in nanocrystal quantum dots, nano-rods/wires, and nanodisks will impact the nonlinear coherent upconversion process for greatly enhanced lasing performance. Particular efforts will be made to (1) understand the mechanism of two-photon absorption-induced stimulated emission in nanoscale semiconductor materials, (2) study the two-photon lasing dynamics (gain, mode, spectral and spatial distribution, threshold behavior, upconversion efficiency, etc) and their relation to the structural parameters of nanoscale semiconductor dots/rods/wires/disks, (3) enhance the upconversion efficiency and optimize the lasing performance by tailoring the multiple variables used in nanostructure design and processing, and (4) identify the key applications of nanostructured two-photon lasers in biomolecular detection, optofluidic lasing, and optical storage.Broader Impacts:Successful implementation of the proposed study will bring fundamental changes to the design and operation of two-photon pumped lasers and expand their applications in wavelength upconversion, on-chip UV lasers, bio/medical sensing and diagnostics, and optical storage. The study will also build on a foundation of nonlinear optical processes and stimulated emission in low-dimension semiconductors. The proposed work will provide focused research and learning experience to undergraduate and graduate students by involvement in experimental laboratory work, and help them to bridge the fundamental nanoscience with the real-world applications of nanotechnology. In addition, The PI will work with the Penn State's Center for Nanotechnology Education and Utilization and contribute to the state-wide education and workforce development program on nanotechnology in Pennsylvania.

“该奖项是根据2009年的《美国回收与再投资法》（公法111-5）资助的。”这项研究的最终目标是为开发和应用新一代两光顿泵送激光奠定坚实的基础基于工程的半导体纳米结构，在该纳米晶体量子点，纳米杆，电线，电线和磁盘中，强的电子和/或光学限制会影响非线性相干上的上转换过程，以极大地增强激光功能。开发基于半导体纳米结构的新一代两光子泵送激光器设备，从而在纳米晶量量子点，纳米杆/线和纳米台面中的强电子和/或光学限制在上。 （1）了解纳米级半导体材料中两光子吸收诱导的刺激发射的机制，（2）研究两光子激光激发动力学（增益，模式，光谱和空间分布，阈值，上转换，上转换）效率等）及其与纳米级半导体点/杆/电线/磁盘的结构参数的关系，（3）提高上转效率并通过定制纳米结构设计和处理中使用的多个变量来优化激光性能，以及（4）确定纳米结构两光激光器在生物分子检测，光氟式激光和光学存储中的关键应用。Broader的影响：拟议研究的成功实施将为两光子泵激光的设计和运作带来根本性的变化，并扩展其在其应用中的应用，并扩展了其在其应用中的应用。波长上转换，芯片紫外线激光器，生物/医学传感和诊断以及光学存储。该研究还将建立在非线性光学过程的基础上，并在低维半导体中刺激发射。拟议的工作将通过参与实验实验室工作为本科和研究生提供重点的研究和学习经验，并帮助他们使用纳米技术的现实应用程序桥接基本的纳米科学。此外，PI将与宾夕法尼亚州立大学的纳米技术教育中心合作，并为宾夕法尼亚州纳米技术的全州教育和劳动力发展计划做出贡献。