Semiconductor Physics and Photonics

半导体物理与光子学

• 批准号: 9113219
• 负责人: Hyatt Gibbs
• 金额: $ 31.11万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-02-15 至 1995-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9113219&HistoricalAwards=false
• 关键词: Semiconductor; Physics; Photonics

This research focuses on semiconductor heterostructures grown in a Riber 32P molecular beam epitaxy machine dedicated exclusively to nonlinear optics, probably the only one in the world. Over the last several years considerable experimental and theoretical capabilities and experience have been acquired and developed to understand the band-edge nonlinearities of semiconductors and to design, fabricate, and operate nonlinear optical devices. Having under one roof capabilities for design, growth, fabrication, linear and nonlinear spectroscopy, and many-body theory has accelerated this process, leading to synergistic interactions. In the area of nonlinear materials, research will focus on the bandstructure, optical nonlinearity, and gain of strained layer superlattices, relevant as materials for low-power nonlinear devices and low-threshold lasers. Research on waveguide structures includes nonlinear directional couplers with and without current injection, as many-n phase shifter by current injection, and a 10-um intersubband-transition laser. Research on etalon structures concentrates on all- optical switches for optical communication, low- power slow-response etalons, and the sensitivity to external feedback of vertical-cavity surface- emmitting lasers. All findings for nonlinear optics apply equally well to optoelectronics, since the steady-state room-temperature band-edge properties of a semiconductor are determined solely by the carrier density however generated. //

本研究的重点是半导体 在Riber 32 P分子中生长异质结构 电子束外延机专用于 非线性光学，可能是唯一一个在 世界 在过去的几年里， 实验和理论能力， 已经获得并发展了经验， 了解带边非线性 半导体和设计，制造， 操作非线性光学器件。 根据 一个屋顶的设计，增长，制造， 线性和非线性光谱学，以及多体 理论加速了这一过程，导致 协同作用。 在非线性领域， 材料，研究将集中在能带结构， 光学非线性和应变层增益 超晶格，作为低功率材料 非线性器件和低阈值激光器。 对波导结构的研究包括 非线性定向耦合器 电流注入，作为电流驱动的多N移相器 注入和10 μ m子带间跃迁激光器。 对标准具结构的研究集中在所有的- 光通信用光开关，低- 功率慢响应标准具， 垂直腔面外反馈 发射激光。 非线性光学的所有发现 同样适用于光电子学，因为 稳态室温带边 确定半导体的性质， 仅仅由然而产生的载流子密度决定。 //