Results 41 to 50 of about 5,915,519 (323)

Large-scale uniform optical focus array generation with a phase spatial light modulator. [PDF]

open access: yesOptics Letters, 2019
In this Letter, to the best of our knowledge, we report a new method to generate uniform large-scale optical focus arrays (LOFAs). By identifying and removing undesired phase rotation in the iterative Fourier transform algorithm (IFTA), our approach ...
Donggyu Kim   +7 more
semanticscholar   +1 more source

Analytical Description of Digital Mask Based STED Lithography [PDF]

open access: yes한국정밀공학회지, 2022
In this study, a digital mask-based STED lithography technique was proposed, and the effective resolution of the proposed system was calculated analytically.
Won-Sup Lee, Hyunmin Cho, Won Seok Chang
doaj   +1 more source

Encoding the Intensity and Phase Gradient of Light Beams with Arbitrary Shapes

open access: yesApplied Sciences, 2023
We present an approach for engineering the intensity trajectory and phase gradient of light beams with arbitrary shapes by estimating their parametric equations using Freeman chain code and by applying the fast Fourier transform.
Alejandra Serrano-Trujillo   +1 more
doaj   +1 more source

Characterizing a spatial light modulator using ptychography. [PDF]

open access: yesOptics Letters, 2017
Ptychography is used to characterize the phase response of a spatial light modulator (SLM). We use the technique to measure and correct the optical curvature and the gamma curve of the device. Ptychography’s unique ability to extend field of view is then
Samuel McDermott   +3 more
semanticscholar   +2 more sources

An electronically addressed spatial light modulator [PDF]

open access: yes, 1989
Coherent optical data processing is recognised to be a natural solution to certain information processing problems. Attempts to exploit the benefits of optical processing are limited by the quality of available Spatial Light Modulators.
McKnight, Douglas J
core   +2 more sources

Holographic Display System Based on Effective Area Expansion of SLM

open access: yesIEEE Photonics Journal, 2019
In this paper, a holographic display system with wide viewing area is proposed based on the effective area expansion of the SLM. The effective area of the SLM is calculated based on the viewing area characteristics and expanded by using two SLMs ...
Di Wang   +4 more
doaj   +1 more source

Silicon electro-optic modulator [PDF]

open access: yes, 2012
Electronic redacted version excludes material for which permission has not been granted by the rights holderIn recent years, as on-chip data transmission has increased dramatically, much time and effort has been devoted to the development of compact ...
Dong, Fengqiao
core   +2 more sources

Holographic Zoom System Having Controllable Light Intensity Without Undesirable Light Based on Multifunctional Liquid Device

open access: yesIEEE Access, 2019
In this paper, a holographic zoom system having controllable light intensity based on a multifunctional liquid (ML) device is proposed. The system consists of a collimated beam, a PBS, a spatial light modulator (SLM), an ML device, and a receiving screen.
Di Wang, Chao Liu, Qiong-Hua Wang
doaj   +1 more source

Study on Aided Optical Alignment by Programmable Spots Array Generated by Off-Axis Parabolic Phase Based on LCoS-SLM

open access: yesApplied Sciences, 2020
We present an aided optical alignment method using the liquid crystal on silicon spatial light modulator (LCoS-SLM). An optical system composed of an interferometer and an LCoS-SLM was established to verify the effectiveness of the method. The system was
Zhen Zeng   +3 more
doaj   +1 more source

Reconfigurable beams with arbitrary polarization and shape distributions at a given plane [PDF]

open access: yes, 2013
Methods for generating beams with arbitrary polarization based on the use of liquid crystal displays have recently attracted interest from a wide range of sources.
Carnicer González, Arturo   +3 more
core   +1 more source

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