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.

目的：该程序的目的是开发一项技术，该技术允许使用半导体设备直接测量超快脉冲的载体 - 末期阶段。智能优点：首先，由于其定义独立于第二光波，因此，超快脉冲的载波 - 固定相（CEP）被认为是光的绝对相。找到一种低成本的方法来测量CEP，将使此基本参数变得广泛访问，因此在光学信息处理，光学传感和精度计量学方面开辟了一个新的维度。其次，CEP控制是新兴的Atto科学和Zepto科学的有利技术。访问如此短的时间尺度需要使用具有精确定制的现场图案的激烈的几个周期红外脉冲。如果没有可靠的方法来探测CEP，就无法实现这样的壮举。但是，当前的CEP检测技术非常复杂且昂贵。拟议的研究利用了半导体纳米颗粒提供的出色连贯性特征，旨在制定具有可能的电子读数的基于半导体的CEP销售方案，这可能最终为世界各地的大多数研究人员开放进入Atto秒世界的机会。BROADER的影响。BROADER的影响：BBROADER的影响：更广泛的影响力的影响：1（1），该研究的动态是：（1（1），该公司的动态化是：（1（1） Huntsville，（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整合，以及（3）通过与当地的光学/光子学专业社会和各种外展活动建立在阿拉巴马州北部地区建立光学教育中心。