Improving localization precision of Brillouin measurements using spectral autocorre lation analysis

作     者：Eitan Edrei Milos Nikolic Giuliano Scarcelli 

作者机构：Fischell Department of BioengineeringUniversity of Maryland College ParkMaryland 20742USA 

出 版 物：《Journal of Innovative Optical Health Sciences》 (创新光学健康科学杂志（英文）)

年 卷 期：2017年第10卷第6期

页      面：35-42页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 1004[医学-公共卫生与预防医学(可授医学、理学学位)] 0808[工学-电气工程] 080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0836[工学-生物工程] 0803[工学-光学工程] 0702[理学-物理学] 

主　　题：Brillouin microscopy localization 

摘      要：Brillouin spectroscopy is a powerful tool for measuring the mechanical properties of materials without *** sensitivity to mechanical changes that a Brillouin spectrometer can detect is determined by the precision to which a spectral peak can be *** localization precision is however fundamentally limited by the low mumber of photons within a Brillouin measurement,as wel as by intrinsic noise of the ***,we present a method to improve the spectral sensitivity of Brillouin measurements by exploiting the autocorelation function of the *** show that by performing a localization process on the autocorrelation function nearly 20%increase in localizat ion precision can be *** result is consistent bet ween our theoretical treatment,numerical simulation and experimental *** further study the efect of back-ground noise on the precision im provement for realistic scenarios.