Results 21 to 30 of about 90,129 (289)

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

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

Independent polarisation control of multiple optical traps [PDF]

open access: yes, 2008
We present a system which uses a single spatial light modulator to control the spin angular momentum of multiple optical traps. These traps may be independently controlled both in terms of spatial location and in terms of their spin angular momentum ...
Allen   +30 more
core   +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

Reduction in the reconstruction error of computer-generated holograms by photorefractive volume holography [PDF]

open access: yes, 1993
We suggest a method for coding high-resolution computer-generated volume holograms. It involves splitting the computer-generated hologram into multiple holograms, their individual recording as volume holograms by use of the maximal resolution available ...
Barhen, Jacob   +3 more
core   +2 more sources

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

Multi-wavelength holography with a single spatial light modulator for ultracold atom experiments [PDF]

open access: yes, 2015
The authors acknowledge funding from the Leverhulme Trust Research Project Grant RPG-2013-074 and from the EPSRC grant GR/T08272/01.We demonstrate a method to independently and arbitrarily tailor the spatial profile of light of multiple wavelengths and ...
Bowman, David   +3 more
core   +2 more sources

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

Programmable purification of type-I polarization-entanglement [PDF]

open access: yes, 2010
We suggest and demonstrate a scheme to compensate spatial and spectral decoherence effects in the generation of polarization entangled states by type-I parametric downconversion. In our device a programmable spatial light modulator imposes a polarization
Chuang I. L.   +3 more
core   +3 more sources

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