SBIR Phase II: Efficient Multi-Spectral Holographic Filters

SBIR 第二阶段：高效多光谱全息滤光片

• 批准号: 0450478
• 负责人: Christophe Moser
• 金额: --
• 依托单位: ONDAX INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-01-15 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0450478&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Efficient; Multi

This Small Business Innovation Research (SBIR) Phase II project will commercialize the holographic multi-spectral filter technology developed during the SBIR phase I project. The objective of this project will be the industrial fabrication of holographic multi-spectral filters by using the methods developed and demonstrated during the phase I SBIR research. There is a strong scientific and public push in astronomy to look deeper into the universe to discover and observe fascinating phenomena such as the birth of stars and exo-planets. In observations of celestial bodies from ground telescopes, the signal is faint and surrounded with unwanted optical noise from the atmosphere. The hydroxyl (OH) radicals present in the atmosphere emit light in hundreds of narrow lines that dominate the inter-line sky emission by many orders of magnitude. The multi-spectral rejection filter demonstrated in phase I discriminates the narrow spectral features of the OH emission lines from the atmosphere which increases the image sharpness by increasing the signal to noise ratio. The narrow band grating filter technology is a core platform that has a scientific and economic impact on ground-based astronomy as well as in laser diode systems. To date $3.8 Billion has been spent deploying and maintaining the Hubble Telescope. An estimated $2.2 Billion is required to see it to its final scheduled retiring date of 2010. It is believed that the introduction of the these multi-line filters combined in some cases with adaptive optics, can boost the performance of ground based telescopes so that they can approach the performance of space telescopes at a price more than 1000 times lower.

这个小型企业创新研究(SBIR)第二阶段项目将把SBIR第一阶段项目期间开发的全息多光谱滤光片技术商业化。该项目的目标将是利用在第一阶段SBIR研究中开发和演示的方法来工业化制造全息多光谱滤光片。天文学中有一股强大的科学和公众力量，要求更深入地观察宇宙，以发现和观察诸如恒星和系外行星诞生等迷人的现象。在用地面望远镜观测天体时，信号很微弱，周围环绕着来自大气的无用光学噪声。大气中存在的羟基(OH)自由基以数百条狭窄的线条发出光，这些线条主导着线间天空发射的许多数量级。相位I显示的多光谱抑制滤光片区分了来自大气的OH发射线的窄光谱特征，从而通过提高信噪比来提高图像的清晰度。窄带光栅滤波技术是对地面天文学和激光二极管系统产生科学和经济影响的核心平台。到目前为止，部署和维护哈勃望远镜已经花费了38亿美元。据估计，它需要22亿美元才能看到它最终预定的2010年退休日期。人们相信，这些多线滤光片的引入，在某些情况下与自适应光学相结合，可以提高地面望远镜的性能，使它们能够以1000多倍的价格接近空间望远镜的性能。