Abstract
In this letter, we analyze the effects of light intensity on reflective ghost
imaging with thermal source. We find that the brightness of reflective ghost image
can be changed by modulating the light intensity of the source and the splitting
ratio of the beam splitter. The signal-to-noise ratio will be improved by increasing
the light intensity of the source. More important, we can obtain the reflective
ghost image with high image quality by adopting a low light intensity signal beam
and a high light intensity reference beam, which is better than the classical
optical imaging, because it can reduce the effects of light on the object.
© 2014 Chinese Optics Letters
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