[1] [1] Jobsis F F. Science,1977,198,1264.

[2] [2] Delpy D T,Cope M,van der Zee P,et al. Phys. Med. Biol.,1988,33,1433.

[3] [3] Sevick E M,Chance B,Leigh J,et al. Anal. Biochem.,1991,195,330.

[4] [4] Teng Y C,Ding H S,Gong Q C,et al. J. Biomed. Opt.,2006,11,024016.

[5] [5] Wariar R,Gaffke J N,Haller R G,et al. J. Appl. Physiol.,2000,88,315.

[6] [6] Wong F Y,Barfield C P,Campbell L,et al. J. Cerebral Blood Flow and Metabolism,2008,28,74.

[7] [7] Teaborg C,Gora F,Weiller C,et al. Stroke,2000, 31,924.

[8] [8] Strangman G,Franceschini M A,Boas D A. Neuroimage,2003,18,865.

[9] [9] Matcher S J,Elwell C E,Cooper C E,et al. Anal. Biochem.,1995,227,54.

[10] [10] Wang L,Jacques S L,Zheng L. Comput Methods Programs Biomedicine,1995,47,131.

[12] [12] Farrell T J,Patterson M S. Med. Phys.,1992,19,879.

[13] [13] Suzuki S,Takasaki S,Ozaki T,et al. Proc. SPIE,1999,3597,582.

[14] [14] Matcher S J,Kirkpatrick P,Nahid K,et al. Proc. SPIE,1995,2389,486.

[16] [16] Teng Y C,Ding H S,Huang L,et al. Prog. Natl. Sci.,2008,18,1083.

[17] [17] Tuchin V. Tissue Optics,Bellingham,Washington US,SPIE Press,2000.

[18] [18] Matcher S J,Cope M,Delpy D T. Appl. Opt.,1997,36,386.

[19] [19] Patterson M S,Chance B,Wilson B C. Appl. Opt.,1989,28,2331.

[20] [20] Torricelli A,Pifferi A,Taroni P,et al. Phys. Med. Biol.,2001,46,2227.

[21] [21] Fantini S,Hueber D,Franceschini M A. Phys. Med. Biol.,1999,44,1543.

[22] [22] Ferreira L F,Hueber D M,Bastrow T J. J. Appl. Physiol.,2007,102,358.

[23] [23] Cerussi A,van Woerkom R,Waffarn F,et al. J. Biomed. Opt.,2005,10,051401