Performance comparison of ghost imaging versus conventional imaging in photon shot noise cases

Zijie Li; Qing Zhao; Wenlin Gong

doi:10.3788/COL202018.071101

Journals >Chinese Optics Letters >Volume 18 >Issue 7 >Page 071101 > Article

Chinese Optics Letters
Vol. 18, Issue 7, 071101 (2020)

Performance comparison of ghost imaging versus conventional imaging in photon shot noise cases

Zijie Li¹, Qing Zhao^1、*, and Wenlin Gong^2、**

Author Affiliations

¹Center for Quantum Technology Research, School of Physics, Beijing Institute of Technology, Beijing 100081, China

²Key Laboratory for Quantum Optics and Center for Cold Atom Physics of CAS, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

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DOI: 10.3788/COL202018.071101 Cite this Article Set citation alerts

Zijie Li, Qing Zhao, Wenlin Gong. Performance comparison of ghost imaging versus conventional imaging in photon shot noise cases[J]. Chinese Optics Letters, 2020, 18(7): 071101 Copy Citation Text

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Fig. 1. Typical schematics of (a) computational GI and (b) CI via laser illumination.

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Simulated results of CI and GI at different I0 when the object’s transmission area Ao=20×20 pixels2 is fixed. (a) The relationship between the DSNR of CI/GI and the number density of photons illuminating the DMD or the reflection mirror I0 (I0=2Io); (b) the dependence of the SNRtran of CI/GI on I0; (c)–(f) the imaging results of CI and GI when I0=1, 3, 10, and 30 photons/pixels2, respectively. The areas shown by the pink dashed box in (c)–(f) correspond to the object’s transmission region achieved by CI and GI.

Fig. 2. Simulated results of CI and GI at different

I_{0}

when the object’s transmission area

A_{o} = 20 \times 20 {pixels}^{2}

is fixed. (a) The relationship between the DSNR of CI/GI and the number density of photons illuminating the DMD or the reflection mirror

I_{0}

(

I_{0} = 2 I_{o}

); (b) the dependence of the

{SNR}^{tran}

of CI/GI on

I_{0}

; (c)–(f) the imaging results of CI and GI when

I_{0} = 1

, 3, 10, and

30 {photons / pixels}^{2}

, respectively. The areas shown by the pink dashed box in (c)–(f) correspond to the object’s transmission region achieved by CI and GI.

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Fig. 3. Simulated results of CI and GI at different

A_{o}

in the case of

I_{0} = 40 {photons / pixels}^{2}

. (a) The relationship between the DSNR of CI/GI and the object’s transmission area

A_{o}

; (b) the dependence of the

{SNR}^{tran}

of CI/GI on

A_{o}

; (c)–(f) the imaging results of CI and GI when

A_{o} = 100

, 400, 1600, and

3600 {pixels}^{2}

, respectively. The areas labeled by the pink dashed box in (c)–(f) correspond to the object’s transmission region achieved by CI and GI.

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Fig. 4. Performance comparison of

{SNR}^{tran}

for CI and GI for different

I_{0}

and

A_{o}

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Fig. 5. The dependence of CI and GI on

{SNR}^{tran}

for different

I_{0}

when the threshold value

A_{o}^{threshold}

is chosen as

2000 {pixels}^{2}

. (a) The projection diagram of

{SNR}^{tran}

based on Fig. 4; (b) the curves of

{SNR}^{tran} - I_{0}

for CI and GI corresponding to the pink dash-dotted line of (a); (c)–(g) the imaging results of CI and GI when

I_{0} = 10

, 100, 200, 280, and

360 {photons / pixels}^{2}

, respectively. The areas labeled by the pink dashed box in (c)–(g) correspond to the object’s transmission region achieved by CI and GI.

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Fig. 6. Performance comparison of

{SNR}^{tran}

for CI and GI for different

I_{0}

and

A_{o}

, which correspond to the diagonal value of

{SNR}^{tran}

in Fig. 4. (a) The projection diagram of

{SNR}^{tran}

based on Fig. 4; (b) the

{SNR}^{tran}

of CI and GI in the case of

\frac{A_{o}}{I_{0}} = 10

, corresponding to the pink dash-dotted line of (a); (c)–(g) the imaging results of CI and GI when

I_{0} = 10 photons / {pixels}^{2}

and

A_{o} = 10 \times 10 {pixels}^{2}

I_{0} = 40 photons / {pixels}^{2}

and

A_{o} = 20 \times 20 {pixels}^{2}

I_{0} = 90 photons / {pixels}^{2}

and

A_{o} = 30 \times 30 {pixels}^{2}

I_{0} = 200 photons / {pixels}^{2}

and

A_{o} = 40 \times 50 {pixels}^{2}

, and

I_{0} = 360 photons / {pixels}^{2}

and

A_{o} = 60 \times 60 {pixels}^{2}

, respectively. The areas labeled by the pink dashed box in (c)–(g) correspond to the object’s transmission region achieved by CI and GI.

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Zijie Li, Qing Zhao, Wenlin Gong. Performance comparison of ghost imaging versus conventional imaging in photon shot noise cases[J]. Chinese Optics Letters, 2020, 18(7): 071101

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