Fundamentals and Applications of Ultra-Slow Light Propagation in Room Temperature Solids
室温固体中超慢光传播的基础和应用
基本信息
- 批准号:0355206
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2004
- 资助国家:美国
- 起止时间:2004-04-15 至 2007-03-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
0355206BoydRecent research has led to the development of techniques that can allow light to propagate through a material system with a greatly reduced (or increased) group velocity. Interest in slow light results both from conceptual issues and for its potential usefulness in applications such as controllable delay lines, information storage devices, and quantum information processing. Most techniques to date for the production of slow light have been very difficult to implement, involving for instance a Bose-Einstein condensate, hot atomic vapors, or cryogenically controlled crystals.The PI has recently demonstrated (PRL 90,113903,2003)a technique for the production of slow light that is much easier to implement in that it entails the use of room-temperature solids. It is based on the modification of the refractive index profile that accompanies the spectral hole created by a novel quantum coherence process. This spectral hole is created as the result of coherent population oscillations (CPO), the periodic modulation of the ground state population at the beat frequency between two applied fields. Using this technique, he demonstrated light velocities as low as 57 m/s using a ruby crystal. Coherent population oscillations can also provide an extremely sensitive spectroscopic tool for studying the structural properties of optical materials. In the case of alexandrite, chromium ions can be located at either sites with mirror or inversion symmetry, and these two sites show different sorts of saturation behavior. The PI has found (Science 301,200,2003)that at certain wavelengths the inversion sites dominate and alexandrite shows ultra-slow propagation, whereas at other wavelengths the mirror sites dominates leading to superluminal (but causal) propagation.The proposed research program will study slow and fast light propagation in room temperature solids from several related points of view. Questions include the fundamental limitations to how much a pulse can be retarded or advanced by means of CPO and how to optimize the effect through the use of different materials and different interaction geometries. A particularly interesting possibility along these lines involves studies of optical delay in erbium doped optical fibers, an extremely important system component. Preliminary experiments have shown the existence of this effect. Related questions include how well can one build optical delay lines and storage devices based on this effect, and what other physics and applications are enabled by slow-and fast-light techniques. As an example, it is expected that there will be a very strong acoustooptic interaction under conditions such that the velocity of light in a given material becomes equal to the velocity of sound.The broader impact of the proposed activity includes the following aspects. The PI 's research group consists of a large diverse group of individuals who are encouraged to work collaboratively and to explore the intellectual underpinnings of their research projects. The subject area of the proposed effort is one that is of interest to the general public, and indeed the PI's earlier work on this topic has been covered by the popular press. Several workshops on the subject area of the proposal will be held during the course of this project.
最近的研究导致了技术的发展,这种技术可以使光以极大的降低(或增加)的群速度通过物质系统传播。对慢光的兴趣既源于概念问题,也源于其在可控延迟线、信息存储设备和量子信息处理等应用中的潜在用途。到目前为止,大多数产生慢光的技术都很难实现,例如涉及玻色-爱因斯坦凝聚体、热原子蒸气或低温控制的晶体。PI最近展示了一种产生慢光的技术(PRL 90,113903,2003),该技术更容易实现,因为它需要使用室温固体。它是基于一种新的量子相干过程产生的光谱空穴所伴随的折射率分布的修改。这种光谱空穴是相干布居振荡(CPO)的结果,相干布居振荡是基态布居在两个外加电场之间的拍频上的周期性调制。使用这项技术,他使用红宝石晶体演示了低至57米/S的光速。相干布居振荡也可以为研究光学材料的结构性质提供一种极其灵敏的光谱工具。在紫翠宝石的情况下,铬离子可以位于镜像或反转对称的位置,这两个位置表现出不同的饱和行为。PI(Science 301,200,2003)发现,在某些波长,反转位置占主导地位,紫翠宝石表现出超慢传播,而在其他波长,镜像位置占主导地位,导致超光速(但有因果关系)传播。拟议的研究计划将从几个相关的角度研究室温固体中的慢光和快光传播。问题包括通过CPO可以将脉冲延迟或提前多少的基本限制,以及如何通过使用不同的材料和不同的相互作用几何来优化效果。沿着这些路线的一种特别有趣的可能性涉及对掺铒光纤中的光学延迟的研究,这是一种极其重要的系统组件。初步实验表明,这种效应是存在的。相关的问题包括:基于这种效应,人们可以多好地建造光学延迟线和存储设备,以及慢光和快光技术还能实现哪些其他物理和应用。例如,预计在特定材料中的光速与音速相等的条件下,将会有非常强的声光相互作用。拟议活动的更广泛影响包括以下方面。派S研究小组由一大群不同的个人组成,他们被鼓励合作并探索他们研究项目的智力基础。拟议工作的主题领域是公众感兴趣的领域,事实上,国际派在这个主题上的早期工作已经被大众媒体报道。在这个项目的过程中,将举办几个关于该主题领域的研讨会。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Robert Boyd其他文献
Chaperone therapy for mucopolysaccharidosis type IIIC
- DOI:
10.1016/j.ymgme.2017.12.329 - 发表时间:
2018-02-01 - 期刊:
- 影响因子:
- 作者:
Alexey V. Pshezhetsky;Xuefang Pan;Rachel Héon-Roberts;Shao-Gang Li;Harry Y. Wu;Mahsa Taherzadeh;Camila De Britto Pará De Aragão;Jill Wood;Sean Ekins;Robert Boyd;Joel S. Freundlich - 通讯作者:
Joel S. Freundlich
The management ofmaxillo-facial injuries in vagrant alcoholics
- DOI:
10.1016/s0301-0503(85)80030-8 - 发表时间:
1985-01-01 - 期刊:
- 影响因子:
- 作者:
Hugh Cannell;Robert Boyd - 通讯作者:
Robert Boyd
Response to J. Rushen
- DOI:
10.1016/s0003-3472(84)80182-7 - 发表时间:
1984-08-01 - 期刊:
- 影响因子:
- 作者:
Joan B. Silk;Robert Boyd - 通讯作者:
Robert Boyd
B4Cターゲットを用いた反応性HiPIMS 放電におけるプラズマ特性評価
使用 B4C 靶评估反应 HiPIMS 放电中的等离子体特性
- DOI:
- 发表时间:
2019 - 期刊:
- 影响因子:0
- 作者:
Tetsuhide Shimizu;Sebastian Ekeroth;Shuga Ikeda;Shun Watanabe;Robert Boyd;Ming Yang;Ulf Helmersson;清水徹英;清水徹英;早川直人,小宮英敏,寺西義一,楊明,清水徹英, - 通讯作者:
早川直人,小宮英敏,寺西義一,楊明,清水徹英,
Experimental measurement of the orbital-angular-momentum spectrum in high-gain parametric down-conversion
高增益参量下变频轨道角动量谱的实验测量
- DOI:
- 发表时间:
2022 - 期刊:
- 影响因子:0
- 作者:
J. Rioux;Girish Kulkarni;B. Braverman;M. Chekhova;Robert Boyd - 通讯作者:
Robert Boyd
Robert Boyd的其他文献
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{{ truncateString('Robert Boyd', 18)}}的其他基金
SBIR Phase II: Additive Manufacturing in Construction
SBIR 第二阶段:建筑增材制造
- 批准号:
1632267 - 财政年份:2016
- 资助金额:
-- - 项目类别:
Standard Grant
SBIR Phase I: Additive Manufacturing in Construction
SBIR 第一阶段:建筑增材制造
- 批准号:
1520482 - 财政年份:2015
- 资助金额:
-- - 项目类别:
Standard Grant
Doctoral Dissertation Research: Cultural Transmission in the Real World: A quantitative study of teaching and cultural learning in the Yasawa Islands, Fiji
博士论文研究:现实世界中的文化传播:斐济亚萨瓦群岛教学和文化学习的定量研究
- 批准号:
1122889 - 财政年份:2011
- 资助金额:
-- - 项目类别:
Standard Grant
Doctoral Dissertation Research in DRMS: Are Patient People More Cooperative? A Study of the Relationship between Time Preferences and Cooperation in Vietnam
DRMS 博士论文研究:患者是否更加合作?
- 批准号:
0848340 - 财政年份:2009
- 资助金额:
-- - 项目类别:
Standard Grant
Doctoral Dissertation Improvement Grant: Cooperation, Altruism, and Human Warfare
博士论文改进补助金:合作、利他主义和人类战争
- 批准号:
0850816 - 财政年份:2009
- 资助金额:
-- - 项目类别:
Standard Grant
Slow Light: New Physical Mechanisms and Advanced Applications
慢光:新物理机制和高级应用
- 批准号:
0701585 - 财政年份:2007
- 资助金额:
-- - 项目类别:
Standard Grant
Doctoral Dissertation: The Role of Culture in the Practice and Maintenance of Cooperation: A Cross-Cultural Study in Detroit, MI
博士论文:文化在合作实践和维持中的作用:密歇根州底特律的跨文化研究
- 批准号:
9910477 - 财政年份:2000
- 资助金额:
-- - 项目类别:
Standard Grant
Development of Composite Nonlinear Optical Materials Based on Local Field Enhancement
基于局域场增强的复合非线性光学材料的研制
- 批准号:
9223726 - 财政年份:1994
- 资助金额:
-- - 项目类别:
Continuing Grant
US-Poland Workshop on Quantum Optics (Szczyrk, Poland, September 3-8, 1993)
美国-波兰量子光学研讨会(波兰 Szczyrk,1993 年 9 月 3-8 日)
- 批准号:
9311645 - 财政年份:1993
- 资助金额:
-- - 项目类别:
Standard Grant
Quantum Photophysics of Atoms, Molecules, and Surfaces, Award in U.S. and Indian Currencies.
原子、分子和表面的量子光物理学,以美国和印度货币颁发的奖项。
- 批准号:
9017532 - 财政年份:1991
- 资助金额:
-- - 项目类别:
Continuing Grant
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