Results 31 to 40 of about 357,223 (321)

Electromagnetically induced spatial light modulation [PDF]

, 2008
We theoretically report that, utilizing electromagnetically induced transparency (EIT), the transverse spatial properties of weak probe fields can be fast modulated by using optical patterns (e.g.
Akamatsu, Allen, Barreiro, Barreiro, Beijersbergen, Brand, Brand, Chen, Chen, Curtis, Dashti, Fatemi, Fleischhauer, Fleischhauer, Grier, Harris, Heckenberg, L. Zhao, Lukin, Mair, Molina-Terriza, S. F. Yelin, Schmidt, T. Wang   +23 more
core   +1 more source

Diffraction Efficiency Characteristics for MEMS-Based Phase-Only Spatial Light Modulator with Nonlinear Phase Distribution

Photonics, 2021
Micro-electro mechanical systems (MEMS)-based phase-only spatial light modulators (PLMs) have the potential to overcome the limited speed of liquid crystal on silicon (LCoS) spatial light modulators (SLMs) and operate at speeds faster than 10 kHz.
Remington S. Ketchum, Pierre-Alexandre Blanche   +1 more
doaj   +1 more source

High-frequency, resonant acousto-optic modulators fabricated in a MEMS foundry platform [PDF]

, 2019
We report the design and characterization of high frequency, resonant acousto-optic modulators (AOM) in a MEMS foundry process. The doubly-resonant cavity design, with short ($L{\sim}10.5\, {\mu}m$) acoustic and optical cavity lengths, allows us to ...
Balram, Korpel, Tadesse
core   +5 more sources

Holographic Tailoring of Structured Light Field with Digital Device

Photonics, 2022
Structured light fields have attracted much attention due to rich spatial degrees of freedom. The tailoring of an arbitrary structured light field on demand is the precondition for the application of structured light.
Zhensong Wan, Zijian Shi, Qiang Liu, Xing Fu   +3 more
doaj   +1 more source

Electro-optic spatial light modulator from an engineered organic layer

Nature Communications, 2021
Spatial light modulators (SLM) provide tailored light fields for many applications. Here, the authors present an SLM device based on an organic electro-optic material that manipulates the properties of individual pixels by electronic signals at speeds up
Ileana-Cristina Benea-Chelmus, Maryna L. Meretska, Delwin L. Elder, Michele Tamagnone, Larry R. Dalton, Federico Capasso   +5 more
doaj   +1 more source

Encoding of arbitrary micrometric complex illumination patterns with reduced speckle [PDF]

, 2019
In nonlinear microscopy, phase-only spatial light modulators (SLMs) allow achieving simultaneous two-photon excitation and fluorescence emission from specific regionof-interests (ROIs). However, as iterative Fourier transform algorithms (IFTAs) can only
Carbonell Leal, Miguel, Lancis, Jesús, Mendoza-Yero, Omel, Mínguez-Vega, Gladys   +3 more
core   +1 more source

3D computer generated medical holograms using spatial light modulators

Journal of Electrical Systems and Information Technology, 2014
The aim of this work is to electronically generate the diffraction patterns of medical images and then trying to optically reconstruct the corresponding holographs to be displayed in space.
Ahmed Sheet, Mai El Sayed, Mai Maged, Mona Ismail, Mariam Ali, Nahed Hussien Solouma, Tarek Abdel-Mottleb   +6 more
doaj   +1 more source

Optically Tunable and Thermally Erasable Terahertz Intensity Modulators Using Dye-Doped Liquid Crystal Cells with Metasurfaces

Crystals, 2021
A terahertz metasurface that is imbedded into a dye-doped liquid crystal (DDLC) cell is fabricated in this work. After the metasurface-imbedded DDLC cell is irradiated with a linearly polarized pump beam, the irradiated cell is measured with a terahertz ...
Yi-Hong Shih, Harry Miyosi Silalahi, Ting-I Tsai, Yi-Chen Chen, Jou-Yu Su, Chia-Rong Lee, Chia-Yi Huang   +6 more
doaj   +1 more source

Ghost imaging with engineered quantum states by Hong-Ou-Mandel interference [PDF]

, 2019
Traditional ghost imaging experiments exploit position correlations between correlated states of light. These correlations occur directly in spontaneous parametric down-conversion (SPDC), and in such a scenario, the two-photon state used for ghost ...
Bornman, Nicholas, Forbes, Andrew, Leach, Jonathan, Prabhakar, Shashi, Vallés, Adam   +4 more
core   +2 more sources

Non-Interferometric Tomography of Phase Objects Using Spatial Light Modulators

Journal of Imaging, 2016
Quantitative 3D phase retrieval techniques are based on either interferometric techniques such as holography or noninterferometric intensity-based techniques such as the transport of intensity equation (TIE).
Thanh Nguyen, George Nehmetallah
doaj   +1 more source