Post on 14-Jul-2015
Lensfree Phase-shifting Imaging
Summary1. Recommend the principle of PSI.2. How to support our experimental work.3. Do further theoretic work of imaging.
Principle
BS
BS CCD
Atoms
w0
z = 0
Σa Σc
Σc Σi’
Fresnel Diffraction & Retrieved Image
Parameters
Lasersw0 = 1.10 mmzR = 4.87 mza = 7.74 m + 7 σz
Δ = 77 MHzPP = 18 μWPR = 57 μW
Atomsρ0 = 2.5 x 10-9
atoms/cm3
N = 1.4 x 107 atomsσx = 6.6 x 10-2 cm σy = 7.3 x 10-2 cm σz = 7.3 x 10-2 cm
q = 8.15 mz = 0 p = 7.74 m
w0
Atoms CCD