摘要We report an experimental observation of Poisson's spot with pseudo-thermal light. The experimental results show that the diffraction pattern disappears in the intensity distribution behind the opaque disc but emerges through both auto-correlation and cross-correlation intensity measurements. The auto-correlation scheme can take care of both better visibility and higher resolution of the diffraction pattern under the condition that the thermal light source has a larger spectral bandwidth.
Abstract：We report an experimental observation of Poisson's spot with pseudo-thermal light. The experimental results show that the diffraction pattern disappears in the intensity distribution behind the opaque disc but emerges through both auto-correlation and cross-correlation intensity measurements. The auto-correlation scheme can take care of both better visibility and higher resolution of the diffraction pattern under the condition that the thermal light source has a larger spectral bandwidth.
[1] Bennink R S, Bentley S J and Boyd R W 2002 Phys. Rev.Lett. 89 113601 [3] Cheng J and Han S S 2004 Phys. Rev. Lett. 92093903 [3] Gatti A, Brambilla E, Bache M and Lugiato L A 2004 Phys. Rev. A 70 013802 Gatti A, Brambilla E, Bache M and Lugiato L A 2004 Phys. Rev. Lett. 93 093602 [4] Wang K and Cao D Z 2004 Phys. Rev. A 70041801(R) [5] Cao D Z and Wang K 2004 Phys. Lett. A 333 23 [6] Cai Y and Zhu S Y 2004 Opt. Lett. 29 2716 [7] Xiong J, Cao D Z, Huang F, Li H G, Sun X J and Wang K2005 Phys. Rev. Lett. 94 173601 [8] Valencia A, Scarcelli G, Angelo M D and Shih Y H 2005 Phys. Rev. Lett. 94 063601 [9] Ferri F, Magatti D, Gatti A, Bache M, Brambilla E andLugiato L A 2005 Phys. Rev. Lett. 94 183602 [10] Cao D Z, Xiong J and Wang K 2005 Phys. Rev. A. 71 013801 [11] Zhang D, Zhai Y H, Wu L A and Chen X H 2005 Opt.Lett. 30 2354 Zhai Y H, Chen X H, Zhang D and Wu L A 2005 Phys. Rev.A 72 043805 [12] Cai Y and Zhu S Y 2005 Phys. Rev. E 71 056607 [13] Scarcelli G, Berardi V and Shih Y H 2006 Phys. Rev.Lett. 96 063602 [14] Cheng J, Han S S and Yan Y J 2006 Chin. Phys. 15 2002 [15] Xiong J, Huang F, Cao D Z, Li H G, Sun X J and Wang K2005 Chin. Phys. Lett. 22 2824 [16] Xiong J, Li H G, Sun X J, Lin L F and Wang K 2006 Chin. Phys. 15 2942 [17] Wang K, Xiong J and Gao L 2006 Frontiers of Physicsin China 1 54 [18] Angelo M D and Shih Y H quant-ph/0302146v2
2008, Vol. 25 
