TY - JOUR
T1 - Direct generation of 2D arrays of random numbers for high-fidelity optical ghost diffraction and information transmission through scattering media
AU - Cao, Yonggui
AU - Xiao, Yin
AU - Pan, Zilan
AU - Zhou, Lina
AU - Chen, Wen
N1 - Funding Information:
This work was supported by Hong Kong Research Grants Council ( C5011-19G , 15224921 ), GuangDong Basic and Applied Basic Research Foundation (2022A1515011858), and The Hong Kong Polytechnic University (1-W167, 1-W19E).
Publisher Copyright:
© 2022 Elsevier Ltd
(PGMS checked: P0037683, P0031912, P0033487, P0034932, P0036716)
PY - 2022/11
Y1 - 2022/11
N2 - In this paper, we propose a new approach for high-fidelity optical ghost diffraction and information transmission through scattering media in free space using a series of 2D arrays of random numbers as information carriers. A series of 2D arrays of random numbers are directly generated to encode the ghosts, i.e., original signals or images. The generated 2D arrays of random numbers are sequentially embedded into amplitude-only spatial light modulator (SLM), and are illuminated to propagate through scattering media in free space. Experimental results show feasibility and effectiveness of the proposed method, and different types of ghosts (e.g., analog signals and grayscale images) can be encoded and retrieved with high fidelity. In addition, comparisons using different algorithm parameters and different experimental parameters (e.g., different diffraction distances and wavelengths) are conducted to analyze and illustrate performance of the proposed method. It is found that the proposed method possesses high robustness against scattering media, and can realize high-fidelity ghost diffraction and optical information transmission. The proposed high-fidelity optical ghost diffraction could open up an avenue for many applications, e.g., free-space optical transmission through scattering media. @ 2022.
AB - In this paper, we propose a new approach for high-fidelity optical ghost diffraction and information transmission through scattering media in free space using a series of 2D arrays of random numbers as information carriers. A series of 2D arrays of random numbers are directly generated to encode the ghosts, i.e., original signals or images. The generated 2D arrays of random numbers are sequentially embedded into amplitude-only spatial light modulator (SLM), and are illuminated to propagate through scattering media in free space. Experimental results show feasibility and effectiveness of the proposed method, and different types of ghosts (e.g., analog signals and grayscale images) can be encoded and retrieved with high fidelity. In addition, comparisons using different algorithm parameters and different experimental parameters (e.g., different diffraction distances and wavelengths) are conducted to analyze and illustrate performance of the proposed method. It is found that the proposed method possesses high robustness against scattering media, and can realize high-fidelity ghost diffraction and optical information transmission. The proposed high-fidelity optical ghost diffraction could open up an avenue for many applications, e.g., free-space optical transmission through scattering media. @ 2022.
KW - 2D arrays of random numbers
KW - Free-space optical data transmission
KW - Ghost diffraction
KW - Scattering media
UR - http://www.scopus.com/inward/record.url?scp=85132327653&partnerID=8YFLogxK
U2 - 10.1016/j.optlaseng.2022.107141
DO - 10.1016/j.optlaseng.2022.107141
M3 - Journal article
AN - SCOPUS:85132327653
SN - 0143-8166
VL - 158
SP - 1
EP - 8
JO - Optics and Lasers in Engineering
JF - Optics and Lasers in Engineering
M1 - 107141
ER -