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Experiment in lensless ghost imaging with thermal light
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View: Figures


Image of FIG. 1.
FIG. 1.

Schematic of our experimental apparatus. X1—object plane, X2—image plane, D1—bucket detector, D2—point detector, thermal source—He–Ne laser impinging on ground glass disk, and dc block—remover of constant noise level. The details of the experimental apparatus are the following: width of each ; interslit distance , average speckle size at a distance of from the , and size of detector .

Image of FIG. 2.
FIG. 2.

Experimental results. (a) Plot of correlation between the outputs of detectors D1 and D2 obtained when they are equally distant from the light source . (b) Same as in (a) when the distance of detector D2 has been increased to , while leaving the position of D1 unchanged .

Image of FIG. 3.
FIG. 3.

Computer simulation results. (a) Plot of a typical speckle intensity profile vs the transverse coordinate in the object plane. The two vertical bands mark the positions of the slit pair. (b) Each speckle intensity profile [like the one depicted in (a)] is multiplied by the area it subtends within the slit pair; the graph is the result of an average over 10 000 trials for the case .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Experiment in lensless ghost imaging with thermal light