Results 21 to 30 of about 94,144 (339)

Spatial light modulators [PDF]

Photoniques, 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

Reconfigurable terahertz metasurfaces coherently controlled by wavelength-scale-structured light

Nanophotonics, 2021
Structuring light–matter interaction at a deeply subwavelength scale is fundamental to optical metamaterials and metasurfaces. Conventionally, the operation of a metasurface is determined by the collective electric polarization response of its ...
Jana Kamalesh, Okocha Emmanuel, Møller Søren H., Mi Yonghao, Sederberg Shawn, Corkum Paul B.   +5 more
doaj   +1 more source

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

Photonics, 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, Elena A. Anashkina, Olga N. Egorova, Sergey G. Zhuravlev, Sergei L. Semjonov, Arkady V. Kim, Alexander G. Litvak, Alexey V. Andrianov   +7 more
doaj   +1 more source

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

Scientific 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, Wonwoo Choi, Soobin Kim, Jonghyun Lee, Sehwan Na, Sangwon Ham, Juseong Park, Hoon Kang, Byeong-Kwon Ju, Hwi Kim   +9 more
doaj   +1 more source

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

Applied 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, Víctor Ruiz-Cortés   +1 more
doaj   +1 more source

Independent polarisation control of multiple optical traps [PDF]

, 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, Ashkin, Bingelyte, Bishop, Daryl Preece, Dufresne, Elliot Botvinick, Friese, Grier, He, Jesacher, Jonathan Leach, Knoner, Knoner, Ladavac, Leach, Leach, Leach, Liesener, Maurer, Miles Padgett, O’Neil, Padgett, Paterson, Richard Bowman, Roichman, Sato, Scrimgeour, Sinclair, Stephen Keen, Visscher   +30 more
core   +1 more source

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

Photonics, 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, Martin Šiler, Jan Ježek, Ángel Cifuentes, Johanna Trägårdh, Pavel Zemánek, Tomáš Čižmár   +6 more
doaj   +1 more source

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

, 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., Davide Brivio, Matteo G. A. Paris, Simone Cialdi   +3 more
core   +3 more sources

High-Precision Calibration of Phase-Only Spatial Light Modulators

IEEE 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, Wenxiang Yan, Yuan Gao, Zheng Yuan, Zhi-Cheng Ren, Xi-Lin Wang, Jianping Ding, Hui-Tian Wang   +7 more
doaj   +1 more source

Normalized ghost imaging [PDF]

, 2012
We present an experimental comparison between different iterative ghost imaging algorithms. Our experimental setup utilizes a spatial light modulator for generating known random light fields to illuminate a partially-transmissive object.
Baoqing Sun, Bennink, Bromberg, Donoho, Duarte, Ferri, Ferri, Gatti, Gatti, Jeffrey H. Shapiro, Katz, Matthew P. Edgar, Miles J. Padgett, Shapiro, Stephen S. Welsh, Valencia   +15 more
core   +3 more sources