20140415 lensfree phase shifting imaging

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Lensfree Phase-shifting Imaging Summary 1. Recommend the principle of PSI. 2. How to support our experimental work. 3. Do further theoretic work of imaging. Principle BS BS CCD Atoms w 0 z = 0

Transcript of 20140415 lensfree phase shifting imaging

Page 1: 20140415 lensfree phase shifting imaging

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

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Σa Σc

Σc Σi’

Fresnel Diffraction & Retrieved Image

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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