Results 21 to 30 of about 25,082 (249)

Controlled Excitation of Supermodes in a Multicore Fiber with a 5 × 5 Square Array of Strongly Coupled Cores

open access: yesPhotonics, 2021
Coherent propagation of supermodes in a multicore fiber is promising for power scaling of fiber laser systems, eliminating the need for the active feedback system to maintain the phases between the channels. We studied the propagation of broadband pulsed
Nikolay A. Kalinin   +7 more
doaj   +1 more source

Complex spatial light modulation capability of a dual layer in-plane switching liquid crystal panel

open access: yesScientific Reports, 2022
Complex spatial light modulator (SLM), which can simultaneously control the amplitude and phase of light waves, is a key technology for wide-range of wave-optic technologies including holographic three-dimensional displays.
Seong-Woo Jang   +9 more
doaj   +1 more source

High-Precision Calibration of Phase-Only Spatial Light Modulators

open access: yesIEEE Photonics Journal, 2022
In the fields of optics and photonics, phase-only spatial light modulators (SLMs) play an increasingly important role in wave-front engineering. However, the SLMs are subject to wavefront distortion arising from the imperfection in the birefringence ...
Yicheng Zhao   +7 more
doaj   +1 more source

Endoscopic Imaging Using a Multimode Optical Fibre Calibrated with Multiple Internal References

open access: yesPhotonics, 2022
The interferometric acquisition of the transmission matrix (TM) of a multimode optical fibre (MMF), which is at the heart of multimode fibre-based endoscopic imaging methods, requires using a reference beam. Attempts to use an internal reference, that is
Petr Jákl   +6 more
doaj   +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

Spatial light modulators [PDF]

open access: yesPhotoniques, 2020
Spatial Light Modulators (SLMs) are quasiplanar devices, allowing for the modulation of the amplitude, phase and polarization, or a combination of these parameters of an incident light beam according to the two spatial dimensions of the modulator. SLMs are employed in many different fields and are the subject of continuous technological development.
openaire   +1 more source

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

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

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