Focusing of Laser Through Scattering Media

Hui-ling, 黄惠玲 Huang; Cunzhi, 孙存志 Sun; Ziyang, 陈子阳 Chen; Jixiong, 蒲继雄 Pu

doi:10.3788/gzxb20154402.0229002

Cited by 1 publication

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“…When the light passes through the medium, the scattering light is coupled to the CCD by the lens. Then, the complex amplitude (A) of the scattered light field somewhere on the CCD can be expressed as [9,10]…”

Section: Laser Scattering Focus Based On a Spatial Light Modulator (Slm)mentioning

confidence: 99%

“…In the past, it was believed that such scattered light was useless. However, in recent years it has been found that through modulation [1][2][3][4][5][6][7][8][9][10], such as phase modulation and amplitude modulation, we can focus the scattered light and make use of the information carried by it. The ability to focus after passing through the scattering medium means that there is the potential to image after it passes through the scattering medium.…”

Section: Introductionmentioning

confidence: 99%

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Adjustment of laser scattering focus with machine learning

Zuo¹,

Yang²,

Fang³

et al. 2018

Laser Phys.

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The adjustment of the intensity of laser scattering focus with machine learning based on the back propagation (BP) neural network is proposed in this paper. Focus based on 'laser scattering' is more flexible than that based on a lens and imaging based on 'laser scattering focus' can break through the diffraction limit of lens imagingin order to obtain higher resolution. Therefore, knowing how to adjust the scattering focus is very important. In this paper, we used known data to train a BP network, and then used the trained BP network to realize the rapid and arbitrary adjustment of the intensity of the scattering focus. This method has potential application value in the field of 'laser scattering focus'. In addition, with the rapid development of artificial intelligence, machine learning is increasingly being used in various fields, including physics. We hope that machine learning can also be applied to 'laser scattering focus'. Therefore, in this paper, we conducted some preliminary investigations, which could provide reference for further research.

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Section: Laser Scattering Focus Based On a Spatial Light Modulator (Slm)mentioning

confidence: 99%