[1] [1] Bennett C H, Bessette F, Brassard G, et al. Experimental quantum cryptography.Crypto, 1992,5(1): 3～28

[2] [2] Hughes R J, Buttler W T, Kwiat P G, et al. Free-space quantum cryptography in daylight.Proc of SPIE, 2000,3932: 117～126

[3] [3] Buttler W T, Hughes R J, Lamoreaux S K, et al. Daylight quantum key distribution over 1.6 km.Phys Rev Lett, 2000,84(24): 5652～5655

[4] [4] Rarity J G, Gorman P M, Tapster P R. Secure key exchange over a 1.9 km free-space range using quantum cryptography. Electron Lett,2001,37(8): 512～514

[5] [5] Kurtsiefer C, Zarda P, Halder M, et al. Long distance free space quantum cryptography.Proc of SPIE, 2002, 4917: 25～31

[6] [6] Hughes R J, Nordholt J E, Derkacs D, et al. Practical free-space quantum key distribution over 10 km in daylight and at night. New Journal of Physics, 2002, 4: 43.1～43.14

[7] [7] Buttler W T, Hughes R J, Kwiat P G, et al. Practical free-space quantum key distribution over 1 km. Phys Rev Lett,1998,81(15): 3283～3286

[8] [8] Nordholt J E, Hughes R J, Morgan G L, et al. Present and future free-space quantum key distribution. Proc of SPIE, 2002,4635: 116～126

[9] [9] Zhang G Y, Ma J, Tan L Y, et al. Single-photon acquisition probability for free-space quantum key distribution. Proc of SPIE, 2005,5631 :173～180

[10] [10] Erdmann R. Proposed methods of addressing some rate and range limits in quantum cryptography. Proc of SPIE, 2002, 4821: 486～493