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(DH) Noise and Signal scaling factors in Digital Holography in week illumination: relationship with Shot Noise.

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FIG. 1: (a) Digital holography setup. L: diode laser; BS1, BS2: beam splitters; AOM1 and AOM2: acousto-optic  mod-ulators; O: objective; BE: beam expander; M: mirror; A: light attenuator
FIG. 2: (a) Intensity signal |H(x, y, z = 0)| 2 detected by the CCD camera. (b,c) k-space intensity signal | H˜ (k x , k y , z = 0)| 2 without (b) and k-space filtering (c) with two filter sizes (400× 400
FIG. 3: Intensity image (i.e. |H(x, y, D)| 2 ) of the USAF tar- tar-get reconstructed from H 1 , 1 (a), H 2 (b), H 4 (c), H 8 (d)
FIG. 5: Intensity (i.e. |H(x, y, D)| 2 ) along the AA’ white line of Fig.3. The black curves correspond H 1 , 1 (a), H 2 (b), H 4 (c) and H 8 (d)
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