激光显微荧光谱精密测量光量子特性的方法  

Method of Laser Micro-photoluminescence Spectrum for Accurately Measuring Optical Quantum Properties

作　　者：方琰[1] 陈张海[2] 王防震[2] 

机构地区：[1]复旦大学附属中山医院,上海200032 [2]复旦大学先进材料实验室,上海200433

出　　处：《光子学报》2010年第S1期6-8,共3页Acta Photonica Sinica

基　　金：国家自然科学基金(No.30470409)资助

摘　　要：提出了药物凝聚纳米晶体宏观光量子态体系的新概念和测量方法.根据光量子特性可被大于纳米药物晶体带隙能的光子表征的原理,采用200～400nm和350～850nm激光器,自行搭建的光路系统和测量平台,建立纳米药物晶体光电子耦合效应(光量子效应)的激光显微荧光谱精密测量方法.结果表明:激光显微荧光谱计量纳米药物晶体光量子特性的14次重复测量波长相对不确定度是0%,小于德国国家标准研究院推荐的波长相对不确定度参考值0.2%,测量误差是[1-0]%;激光显微荧光谱计量纳米药物晶体光量子特性的14次重复测量光强相对不确定度是5.1%,稍大于美国国家标准研究院光强相对不确定度校准参考值3%,测量误差是[1+2.1]%.波长和光强二维激光显微荧光谱精密测量方法解决了原始测量标准的相对不确定度和光学计量溯源的两大关键瓶颈问题,可满足纳米生物光晶体宏观量子态体系光电子耦合效应或电子结构带隙能检测的广泛需求,在量子生物物理学和晶体发光精密测量上有普适性.A new concept nanometer medicine molecular condensate macro-quantum system and its measurement method are postulated.According to the rationale that the feature of optical quantum can be characterized by photons,in which band-gap energies are more than that of nanometer medicine crystals by using 200nm^400nm and 350nm^850nm laser pumps,home-made optical system and measurement platform,therefore,the method of laser micro-photoluminescence spectrum for accurately measuring photoelectron coupling effect of nano-medicine crystals(optical quantum effect) is established.Experimental results reveal that the relative uncertainty of repeatedly measuring optical emission wavelengths by 14 times is 0% for optical quantum properties of nano-medicine crystals by laser micro-photoluminescence spectrum,which is smaller than the recommended 0.2% reference value of the national institute of Germany standard and technology(PTB),the measurement error of optical emission wavelengths is %,and that the relative uncertainty of repeatedly measuring optical emission intensities by 14 times is 5.1% for optical quantum properties of nano-medicine crystals by laser micro-photoluminescence spectrum,which is larger than the recommended 3% reference value of the National institute of standard and Technology(NIST),the measurement error of optical emission intensities is %.It is concluded that an accuracy measurement method of optical emission wavelengths and optical emission intensities by laser micro-photoluminescence spectrum solves two key issues of relative uncertainty and optical metrology traceability for a primary measurement standard,which will meet the wide needs of measuring photoelectron coupling effects or band-gap energies of electron structures for nano-bio-optical crystal macro-quantum state systems.

关 键 词：材料 测量 生物光学 量子光学 激光光学 显微 光谱学 

分 类 号：O431.2[机械工程—光学工程]