Comprehensive model and performance optimization of phase-only spatial light modulators

Pushkina, Anastasia A.; Costa-Filho, J. I.; Maltese, G.; Lvovsky, A. I.

doi:10.1088/1361-6501/aba56b

Cited by 18 publications

(10 citation statements)

References 37 publications

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“…Nevertheless, most previous works mainly focused on the compensation of one factor. Recently, Pushkina [54] established a comprehensive model to compensate the effect of pixel cross talk, the back panel curvature (static aberration), and the internal Fabry-Perot cavity simultaneously. As a result, the performance of LC-SLM has been substantially improved.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

High Precision Optical Wavefront Generation Using Liquid Crystal Spatial Light Modulator (LC-SLM)

Zhao¹

2022

Liquid Crystals

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LC-SLM provides a flexible way to modulate the phase of light with the help of a grayscale pattern loaded on it. Nevertheless, the modulated phase profile is of relatively low accuracy due to the nonlinear and nonuniform response of the liquid crystal layer in the SLM. To improve the performance of LC-SLM on the wavefront generation, the nonlinear and nonuniform phase response needs to be calibrated and compensated effectively. In this chapter, we present some state-of-art methods to measure the phase modulation curve of the LC-SLM. Some methods to measure the static aberration caused by the backplane of the LC-SLM are then presented. Last but not the least, the future development of the LC-SLM in phase modulation is also presented.

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Section: Conclusion and Discussionmentioning

confidence: 99%

High Precision Optical Wavefront Generation Using Liquid Crystal Spatial Light Modulator (LC-SLM)

Zhao¹

2022

Liquid Crystals

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“…When computing the hologram, we compensate for the incoming beam's non-uniform profile and the SLM backplane curvature using the procedure described in Ref. [22]. The holograms can be modified further to alter the waist, displacement and orientation of the generated modes.…”

Section: Spatial Light Modulatormentioning

confidence: 99%

“…The heterodyne detector is sensitive only to the component of the field that matches the LO mode, effectively selecting the necessary field projections. Since it is technically easier to prepare HG modes [22,23] than sort them [24][25][26], this approach significantly simplifies the experiment. We acquire heterodyne photocurrents for HG m,n with m and n ranging from 0 to 20.…”

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confidence: 99%

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Super-resolution linear optical imaging in the far field

Pushkina,

Maltese,

Costa-Filho

et al. 2021

Preprint

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The resolution of optical imaging devices is ultimately limited by the diffraction of light. To circumvent this limit, modern super-resolution microscopy techniques employ active interaction with the object by exploiting its optical nonlinearities, nonclassical properties of the illumination beam, or near-field probing. Thus, they are not applicable whenever such interaction is not possible, for example, in astronomy or non-invasive biological imaging. Far-field, linear-optical super-resolution techniques based on passive analysis of light coming from the object would cover these gaps. In this paper, we present the first proof-of-principle demonstration of such a technique. It works by accessing information about spatial correlations of the image optical field and, hence, about the object itself via measuring projections onto Hermite-Gaussian transverse spatial modes. With a basis of 21 spatial modes in both transverse dimensions, we perform two-dimensional imaging with twofold resolution enhancement beyond the diffraction limit.

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“…The heterodyne detector is sensitive only to the component of the field that matches the LO mode, effectively selecting the necessary field projections. Since it is technically easier to prepare HG modes [27,28] than sort them [29][30][31], this approach significantly simplifies the experiment. We acquire heterodyne photocurrents for HG m;n with m and n ranging from 0 to 20.…”

mentioning

confidence: 99%

Superresolution Linear Optical Imaging in the Far Field

et al. 2021

View full text Add to dashboard Cite

The resolution of optical imaging devices is ultimately limited by the diffraction of light. To circumvent this limit, modern superresolution microscopy techniques employ active interaction with the object by exploiting its optical nonlinearities, nonclassical properties of the illumination beam, or near field probing. Thus, they are not applicable whenever such interaction is not possible, for example, in astronomy or noninvasive biological imaging. Far field, linear optical superresolution techniques based on passive analysis of light coming from the object would cover these gaps. In this Letter, we present the first proof-ofprinciple demonstration of such a technique for 2D imaging. It works by accessing information about spatial correlations of the image optical field and, hence, about the object itself via measuring projections onto Hermite-Gaussian transverse spatial modes. With a basis of 21 spatial modes in both transverse dimensions, we perform two-dimensional imaging with twofold resolution enhancement beyond the diffraction limit.

show abstract

Comprehensive model and performance optimization of phase-only spatial light modulators

Cited by 18 publications

References 37 publications

High Precision Optical Wavefront Generation Using Liquid Crystal Spatial Light Modulator (LC-SLM)

High Precision Optical Wavefront Generation Using Liquid Crystal Spatial Light Modulator (LC-SLM)

Super-resolution linear optical imaging in the far field

Superresolution Linear Optical Imaging in the Far Field

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