Results 31 to 40 of about 3,894,078 (297)

Holographically formed three-dimensional Penrose-type photonic quasicrystal through a lab-made single diffractive optical element [PDF]

, 2010
Large-area three-dimensional Penrose-type photonic quasicrystals are fabricated through a holographic lithography method using a lab-made diffractive optical element and a single laser exposure.
Torres, F, Lozano, Karen, Harb, Ahmad, Kris Ohlinger, Lin, Yuankun, Ohlinger, K, Faraon Torres, Chen, Kevin P., Yuankun Lin, Karen Lozano, Chen, KP, Kevin P. Chen, Di Xu, Xu, Di, Ahmad Harb, Ohlinger, Kris, Torres, Faraon, Harb, A, Lin, Y, Lozano, K, Xu, D   +20 more
core   +1 more source

Theoretical principle and design of high-imaging-quality refractive-diffractive optical elements by multifocal-simultaneous aberration-correction method

Results in Physics
Multifocal refractive-diffractive optical elements, which produce arbitrary light distribution, are widely used in lightweight and compact optical systems.
Bo Dong, Ying Yang, Changxi Xue
doaj   +1 more source

Design and testing of infrared diffractive telescope imaging optical systems

, 2015
Diffractive telescope is an updated imaging technology, it differs from conventional refractive and reflective imaging system, which is based on the principle of diffraction image.
Kang, FuZeng, Zhang, ZF, Zhang, ZhouFeng, Xie, YongJun, Yin, QinYe   +4 more
core   +1 more source

Off-Axis Diffractive Optics for Compact Terahertz Detection Setup

Applied Sciences, 2020
Medical and many other applications require small-volume setups enabling terahertz imaging. Therefore, we aim to develop a device for the in-reflection examination of the samples.
Paweł Komorowski, Mateusz Surma, Michał Walczakowski, Przemysław Zagrajek, Agnieszka Siemion   +4 more
doaj   +1 more source

Off-Axis Polarization Volume Lens for Diffractive Waveguide

Crystals, 2023
In augmented reality diffractive waveguide technology, the light field needs to be collimated before being transmitted into the diffractive waveguide.
Lixuan Zhang, Yishi Weng, Ran Wei, Chuang Wang, Yuchen Gu, Chenyu Huang, Yuning Zhang   +6 more
doaj   +1 more source

Compensation for time fluctuations of phase modulation in a liquid-crystal-on-silicon display by process synchronization in laser materials processing [PDF]

, 2011
We demonstrate the adverse influence of temporal fluctuations of the phase modulation of a spatial light modulator (SLM) display device on nanosecond laser micromachining.
Rainer J. Beck, Jonathan D. Shephard, Parry, Jonathan P., Hand, Duncan P.; id_orcid, Beck, Rainer J, Jonathan P. Parry, Duncan P. Hand, Shephard, Jonathan D.; id_orcid   +7 more
core   +1 more source

Aberration Theoretical Principle of Broadband Multilayer Refractive–Diffractive Optical Elements by Polychromatic Integral Aberration Method

Photonics
Multilayer diffractive optical elements (MLDOEs), which have broadband imaging performance, are widely used in lightweight and compact optical systems on the surface of the refractive lenses forming refractive–diffractive lenses.
Ying Yang, Chongxing Liu, Wanting Yang, Yumin Wei, Mengyuan Liu, Bo Dong, Changxi Xue   +6 more
doaj   +1 more source

Polarization conversion when focusing cylindrically polarized vortex beams

Scientific Reports, 2016
Currently, cylindrical beams with radial or azimuthal polarization are being used successfully for the optical manipulation of micro- and nano-particles as well as in microscopy, lithography, nonlinear optics, materials processing, and telecommunication ...
Alexey P. Porfirev, Andrey V. Ustinov, Svetlana N. Khonina   +2 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Diffractive Optical Elements with a Large Angle of Operation Recorded in Acrylamide Based Photopolymer on Flexible Substrates

International Journal of Polymer Science, 2014
A holographic device characterised by a large angular range of operation is under development. The aim of this study is to increase the angular working range of the diffractive lens by stacking three layers of high efficiency optical elements on top of ...
Hoda Akbari, Izabela Naydenova, Lina Persechini, Sean M. Garner, Pat Cimo, Suzanne Martin   +5 more
doaj   +1 more source