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.

"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高转换过程，可大大提高激光性能。 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）通过调整纳米结构设计和处理中使用的多个变量来提高上转效率并优化激光性能，以及（4）确定纳米结构的两光激光在生物分子检测中的关键应用泵送激光器并在波长上转换，芯片紫外线激光器，生物/医疗传感和诊断以及光学存储中扩展其应用。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。