[1] [1] P. J. Murphy,T. P. Coursolle. Fiber optic displacement sensor employing a graded index lens [J]. Appl. Opt.,1990,29(4):544-547

[2] [2] P. Sandoz,R. Giust,G. Tribillon. Multi-aperture optical head for parallel scanning near field optical microscopy [J]. Opt. Commun.,1999,161(4):197-202

[3] [3] Ding Qin,Wang Huinan. An imaging technique of microcapsule endoscope using a GRIN lens [J]. Acta Photonica Sinica,2004,33(7):889-892

[4] [4] Zhu Shaoli,Xu Qiushuang,Liu Desen. The analysis of GRIN in optical fiber collimator[J]. J. Southwest China Normal University (Natural Science Edition),2004,29(3):379-382

[5] [5] H. O. Sankur,M. E. Motamedi. Micro-optics development in the past decade [C]. SPIE,2000,4179:30-55

[6] [6] W. B. Veldkamp. Overview of microoptics:past,present,and future [C]. SPIE,1991,1544:287-299

[7] [7] Gong Zhibing. Self focusing lens array and its application[J]. J. Applied Optics,2000,21(1):28-31

[8] [8] J. Baehr,K. H. Brenner. Realization of refractive continuous-phase elements with high design freedom by mask-structured ion exchange [C]. SPIE,2001,4437:50-60

[9] [9] Han Yanling,Liu Desen,Li Jingyan et al.. Research on manufacture of square gradient-index lens[J]. Acta Photonica Sinica,2006,35(9):1301-1304

[10] [10] Wang Feng,Liu Desen,Jiang Xiaoping et al.. Research on imaging properties of square GRIN lens array with 5×5[J]. J. Applied Optics,2008,29(4):518-521

[11] [11] R. Stepien,L. Kociszewski,D. Pysz. Technological problems in manufacturing glasses for GRIN rod lenses[C]. SPIE,1996,2943:60-68

[12] [12] Han Yanling. Theoretical Analysis and Manufacture Craft of Square Self-Focusing Lenses and It′s Array[D]. Chongqing:Southwest University,2006. 29-31

[13] [13] Liu Desen. Chromatic aberration analysis of the selfoc-rod lenses[J]. Acta Physica Sinica,1982,31(2):226-233

[14] [14] Wang Feng,Liu Desen. The analysis of optical spot size and aberration properties of selfoc lens[J]. Acta Photonica Sinica,2007,36(5):830-833

[15] [15] X. L. Lang,D. S. Liu,T. Lv et al.. Aberration improvement of gradient index rod lens[J]. Chin. Opt. Lett.,2005,3(3):152-153

[16] [16] Wang Feng,Liu Desen,Jiang Xiaoping et al.. Analysis of large refractive index difference of GRIN-rod lenses caused by ion-exchanging[J]. Acta Physica Sinica,2007,56(10):5890-5894

[17] [17] Wang Feng,Qin Xianming,Liu Desen et al.. Study on influence of two-step ion-exchanging upon optical properties of GRIN lens[J]. J. Southwest University (Natural Science Edition),2007,29(9):37-41