Photon Duplication

光子复制

• 批准号: 9106599
• 负责人: Prem Kumar
• 金额: $ 26.14万
• 依托单位: Northwestern University
• 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: 1992-01-01 至 1995-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9106599&HistoricalAwards=false
• 关键词: Photon; Duplication

An experimental research program will be undertaken to realize in the laboratory the process of photon duplication, a novel process in which the photon statistics of an input beam of light is duplicated into two output beams, one of which can be measured while leaving the other for further manipulation. This process is of interest from a number of standpoints that are both fundamental and applied. Fundamentally, photon duplication is a phenomenon that has never been observed; it requires quantum- optic experimentation in a regime that has never been explored. It also leads to novel quantum nondemolition detection strategies that are efficient and do not require largepump power or explicit phase-sensitive measurements. From an applied standpoint, a photon duplicator can be used in a communication network as a transparent optical tap. Specifically, we propose to analyze the detailed physics of photon duplication and to perform an experiment that will demonstrate the process. A four-wave mixing experiment will be carried out in a regime where photon duplication is predicted to occur. A platelet of CdTe, pumped by a mode- locked and Q-switched Nd:YAG laser, will be used as the nonlinear medium. CdTe is chosen because it has been shown to have a large third-order nonlinearity with a sub-nanosecond response time. Photon correlations will be measured using a novel pulsed shot-noise detection scheme that we have developed. In addition, we will investigate avenues toward implementation of the process of photon duplication in nonlinear optical waveguides.

将进行一项实验研究计划 在实验室里实现光子 复制，一个新的过程， 将输入光束的统计数据复制成 两个输出光束，其中一个可以测量 而留下另一个用于进一步操作。 这一过程引起了许多人的兴趣。 这些观点既是基本的，又是实用的。 从根本上说，光子复制是一种现象， 这是从未被观察到的，它需要量子- 在一个从未有过 被探索。 这也导致了新的量子 有效的非破坏性检测策略 并且不需要大泵功率或显式的 相位敏感测量。 由施加的 从这个角度来看，光子复制器可以用于 通信网络作为透明的光学抽头。 具体而言，我们建议分析详细的 光子复制的物理学， 一个实验来演示这个过程。 一 四波混频实验将在 光子复制被预测为 发生. 碲化镉片晶，由模式泵浦- 锁定和Q开关Nd：YAG激光器，将被用作 非线性介质。 选择CdTe是因为它 已经被证明有一个大的三阶 具有亚纳秒响应时间的非线性。 光子相关性将使用一种新的 脉冲散粒噪声检测方案， 开发 另外，我们会调查 实现光子的过程 非线性光波导中的复制。