CAREER: Semiconductor Detectors for Direct Probing of the Absolute Phase of Light

职业：用于直接探测光的绝对相位的半导体探测器

• 批准号: 1254902
• 负责人: Lingze Duan
• 金额: $ 40万
• 依托单位: University of Alabama in Huntsville
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-05-01 至 2019-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1254902&HistoricalAwards=false
• 关键词: CAREER; Semiconductor; Detectors; Direct; Probing

Objective: The objective of this program is to develop a technology that allows direct measurement of the carrier-envelope phase of ultrafast pulses using semiconductor devices.Intellectual Merit: First, the carrier-envelope phase (CEP) of ultrafast pulses is considered an absolute phase of light as its definition is independent of a second light wave. Finding a low-cost approach to measure CEP would allow this fundamental parameter become widely accessible, hence opening up a new dimension in optical information processing, optical sensing and precision metrology. Second, CEP control is an enabling technology for the emerging atto-science and zepto-science. Accessing such short time scales requires the use of intense few-cycle infrared pulses with precisely tailored field patterns. Such a feat cannot be accomplished without a reliable method to probe the CEP. Current CEP-detection techniques, however, are prohibitively complex and expensive. The proposed research exploits the excellent coherence features offered by semiconductor nanoparticles and aims to develop a semiconductor-based CEP-probing scheme with possible electronic readout, which may eventually open up the access to the atto-second world for most of the researchers around the world.Broader Impacts: The broader impacts are: (1) creating a new research thrust of ultrafast dynamics in semiconductors at the University of Alabama in Huntsville, (2) strengthening the integration of research and education by supporting extracurricular student optics club activities, and (3) building an optics education hub in the northern Alabama region through close collaboration with local optics/photonics professional societies and through a wide range of outreach activities.

目标：该计划的目标是开发一种技术，允许使用半导体器件直接测量超快脉冲的载波包络相位。 智力优点：首先，超快脉冲的载波包络相位（CEP）被认为是光的绝对相位，因为其定义与第二光波无关。找到一种低成本的 CEP 测量方法将使这一基本参数变得广泛可用，从而为光学信息处理、光学传感和精密计量开辟新的维度。其次，CEP 控制是新兴原子科学和 zepto 科学的一项使能技术。访问如此短的时间尺度需要使用具有精确定制的场模式的强烈的少周期红外脉冲。如果没有可靠的方法来探测 CEP，这样的壮举就无法实现。然而，当前的 CEP 检测技术过于复杂且昂贵。拟议的研究利用了半导体纳米粒子提供的出色相干性特征，旨在开发一种基于半导体的 CEP 探测方案，并具有可能的电子读数，这最终可能为世界各地的大多数研究人员打开进入阿托第二世界的大门。 更广泛的影响：更广泛的影响是：（1）在阿拉巴马大学创建了半导体超快动力学的新研究主旨 亨茨维尔，(2) 通过支持课外学生光学俱乐部活动来加强研究和教育的一体化，(3) 通过与当地光学/光子学专业协会的密切合作和广泛的外展活动，在阿拉巴马州北部地区建立光学教育中心。