SBIR Phase II: A New Laser Crystal for Holographic Interferometry

SBIR 第二阶段：用于全息干涉测量的新型激光晶体

• 批准号: 9509066
• 负责人: Peter Nicholson
• 金额: $ 29.94万
• 依托单位: HOLOGRAPHICS INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-10-15 至 1999-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9509066&HistoricalAwards=false
• 关键词: SBIR; Phase; II; New; Laser

This Phase II Small Business Innovation Research project aims to create a (Praseodymium Yttrium Lithium Flouride (Pr:YLF) laser with the characteristics that make a breadboard extended pulse separation holographic interferometry (E.P.S.H.I.) prototype camera field operational. The characteristics of the laser could be 10 pulses per second, 100 millijoules per pulse, and a coherence length of 30 cm to many meters. Laboratory testing on suitable test objects will also be undertaken to further characterize the excitation and pulse separation requirements for successful interferometric testing of large structures. A novel method for pumping Pr:YLF will also be developed and evaluated. Phase I of this project proved that Pr:YLF has unique capabilities for pulsed laser holography. Significant industrial applications in the area of nondestructive testing of bridges, nuclear power plant components storage tanks, and off-shore oil platforms can become possible with an E.P.S.H.I camera.

这个第二阶段的小型企业创新研究项目旨在创造一种具有面包板扩展脉冲分离全息干涉测量(E.P.S.H.I.)特性的(Pr：YLF)激光器。原型机已投入使用。激光器的特性可以是每秒10个脉冲，每个脉冲100毫焦耳，相干长度为30厘米到许多米。还将对适当的测试对象进行实验室测试，以进一步确定成功进行大型结构干涉测试所需的激励和脉冲分离要求。还将开发和评估一种新的泵浦Pr：YLf的方法。该项目的第一阶段证明了Pr：YLf具有独特的脉冲激光全息照相能力。有了EPS摄像机，桥梁、核电站部件储罐和离岸石油平台的无损检测领域的重大工业应用就成为可能。