电子倍增CCD_EMCCD_的噪声特性分析.pdfVIP

30 3 Vol. 30 No. 3 2009 5 Journ l of Applied Optics M y 2009 : 1002-2082(2009) 03-0386-05 ( ) CCD EMCCD 1, 2 1 1 , , ( 1. , 610209; 2. , 100039) : EMCCD , EMCCD EMCCD , , , EMCCD 3 : EM ; EM ; (CIC) EMCCD : CCD; ; (CIC) : TN223: A Analysis of noi se p er f or man ce of EMCCD 1, 2 1 1 TANG Hong-min , WEI Hong-g ng , LIAO Sheng ( 1. Institute of Optics nd Electr onics, Chinese Ac demy of Sciences, Chengdu 610209, Chin ; 2. Gr du te School of the Chinese Ac demy of Sciences, Beijing 100039, Chin ) : . Ab st ract The structure of EMCCD is introduced The functions of sign l mplific tion nd noise restr int were r e lized by inserting the ll-solid-st te electron multiplying structure in the EMCCD chip nd mplifying the ch rge coming out in hor izont l tr nsfer befor e detection ccording to the noise resources of EMCCD. Through theoretic l n lysis of m them tic l models for the m in noises of EMCCD, three ch r cter istics of EMCCD noise were summed up: the EM g in c n effectively restr in the r e d out noise; the noise f ctor gener ted during the EM g in process h s the function of mplifying the noise produced before the multiplying structur e; . the effect of CIC on the EMCCD perform nce is serious It is pointed out th t the improvement of EM g in, ggr v tion of cooling nd optimiz tion of