LCoS display phase self-calibration method based on diffractive lens schemes

Zhang, Haolin; Lizana, Ángel; Iemmi, Claudio; Monroy-Ramírez, Freddy A.; Márquez, Andrés; Moreno, Ignacio; Campos, J.

doi:10.1016/j.optlaseng.2018.02.019

Cited by 17 publications

(13 citation statements)

References 40 publications

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“…To the best of our knowledge, the highest resolution of TDM reported as one-tenth wavelength of the illumination was using off-axis to yield the phase and amplitude of the diffracted field [10]. Besides the interferometric setup, a Shack-Hartmann wavefront sensor can be used to measure the complex diffracted field without the reference beam, see Figure 10c, to eliminate the external influences and minimize the measurement period [76][77][78][79]. In this sensor, a modified Hartmann mask (MHM) was closely set in front of the detector to create replicas of the incident wavefront in several identical but tilted waterfronts; their mutual interference patterns were then recorded on the detector.…”

Section: The Optical Setup Of Tomographic Diffractive Microscopymentioning

confidence: 99%

Tomographic Diffractive Microscopy: A Review of Methods and Recent Developments

Zhang

Godavarthi³

et al. 2019

Applied Sciences

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Tomographic diffractive microscopy (TDM) is a label-free, far-field, super-resolution microscope. The significant difference between TDM and wide-field microscopy is that in TDM the sample is illuminated from various directions with a coherent collimated beam and the complex diffracted field is collected from many scattered angles. By utilizing inversion procedures, the permittivity/refractive index of investigated samples can be retrieved from the measured diffracted field to reconstruct the geometrical parameters of a sample. TDM opens up new opportunities to study biological samples and nano-structures and devices, which require resolution beyond the Rayleigh limit. In this review, we describe the principles and recent advancements of TDM and also give the perspectives of this fantastic microscopy technique.

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Section: The Optical Setup Of Tomographic Diffractive Microscopymentioning

confidence: 99%

Tomographic Diffractive Microscopy: A Review of Methods and Recent Developments

Zhang

Godavarthi³

et al. 2019

Applied Sciences

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“…Hence, we provide a whole gray level range to fulfill the phase-voltage measurement. Finally, the interference shift, characterized as the pattern displacement which is distinguishable by the receiving CCD, is recorded and applied to calculate the phase-voltage relation [27]. The phase-voltage calibration is implemented as the above-explicated self-calibration method.…”

Section: A Lcos Display Phase-voltage Relation Calibrationmentioning

confidence: 99%

“…In the abovementioned microparticle manipulation cases, as the light bottle structures are mainly controlled by addressing DOEs, the LCoS display introduced is operated in the phase-only regime. However, the disproportion of the phase-voltage relation and the spatial phase inhomogeneity [27,28] of the LCoS screen related with fabrication inaccuracy distort the DOE patterns generated, which influence the obtained light bottle structures for particle manipulation. Therefore, the precalibration and the optimization of the imperfect phase distribution of the LCoS are mandatory.…”

Section: Introductionmentioning

confidence: 99%

“…Thanks to the capability of an LCoS display to self-adjust its phase property, a self-calibration of this SLM device is applicable. Numbers of LCoS self-calibration methods, both optimize the phase-voltage relation and the surface phase inhomogeneity, are proposed in literatures [27,29]. Among them, interferometry [30,31] or diffraction [32,33] based methods are demonstrated suitable for the phase-voltage calibration, and the Shack-Hartmann pattern [34,35] meets the requirement to imply the surface inhomogeneity calibration.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic microparticle manipulation through light structures generated by a self-calibrated Liquid Crystal on Silicon display

Zhang

Lizana

Eeckhout

et al. 2018

Unconventional Optical Imaging

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This paper is devoted to investigate the application of different dynamic light structures generated by a self-calibrated Liquid Crystal on Silicon (LCoS) display for microparticle manipulation. Two major studies based on implementing different DOEs, to thoroughly characterize the LCoS display and to achieve optical-inspired particle manipulation, are proposed, respectively. On the one hand, we dynamically introduced the billet-lens configuration and the micro-lens array pattern on the LCoS display, from which the self-calibration of the studied device is implemented. In this case, both the phase-voltage relation and the surface profile were determined and optimized to the optimal performance for microparticle manipulation. On the other hand, we performed the optical manipulation of microparticles by addressing configurable three-dimensional light structures obtained from different phase driven split-lens configurations initiated by the same but optimized LCoS display. Experimental results demonstrated that, by addressing certain phase distributions on the LCoS display, the microparticle can be trapped in the light cones and manipulated by providing certain continuous split-lens configurations.

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“…Among other architectures, both Michelson [57] and Mach-Zehnder [58] interferometers have been successfully employed to carry out this task. Moreover, calibration techniques based on single-path interferometers have also been demonstrated as reliable methods to perform this task [59].…”

Section: Fig Ii6 -Example Of Calibration Mask Hamamatsu 840 Nmmentioning

confidence: 99%

Complex spatial shaping of femtosecond pulses with phase-only spatial light modulators

Leal¹

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Among the most notable results obtained during this thesis, it is worth highlighting: 1. The experimental development and improvement of a double-phase method. 2. The introduction of a novel spatial phase multiplexed technique able to generate arrays of foci with extremely high precision in the position and peak energy of foci. 3. The development of a new calibration technique for phase-only SLMs to increase the accuracy and control capabilities of these devices. 4. The application of the optimized double-phase method to enhance both non-linear microscopic through the introduction of a complex lighting scheme and non-linear optical processes (e.g., secondharmonic generation or filamentation) by means of an accurate control of light parameters.

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LCoS display phase self-calibration method based on diffractive lens schemes

Cited by 17 publications

References 40 publications

Tomographic Diffractive Microscopy: A Review of Methods and Recent Developments

Tomographic Diffractive Microscopy: A Review of Methods and Recent Developments

Dynamic microparticle manipulation through light structures generated by a self-calibrated Liquid Crystal on Silicon display

Complex spatial shaping of femtosecond pulses with phase-only spatial light modulators

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