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We present the first theoretical results on the generation of short-wavelength attosecond vortex beams in semiconductors through their interactions with an intense Laguerre-Gauss beam, in the limit where non-perturbative high-order…

Atomic Physics · Physics 2024-10-21 C. Granados , B. Kumar Das , Christian Heide , Shambhu Ghimire , M. F. Ciappina

Light with transverse polarization structure, such as radial and azimuthal polarization, enables and revives lots of applications based on light-matter interaction due to their unique focal properties. To date, studies referring to this…

Optics · Physics 2017-04-04 Zhi-Han Zhu , Peng Chen , Li-Wen Sheng , Yu-Lei Wang , Wei Hu , Yan-Qing Lu , Wei Gao

The capability of holography to project three-dimensional (3D) images and correct for aberrations offers much potential to enhance optical control in light-based 3D printing. Notably, multi-beam multi-wavelength holographic systems…

Optics · Physics 2024-01-30 Chi Chung Li , Joseph Toombs , Vivek Subramanian , Hayden K. Taylor

Ultrashort laser pulses carrying orbital angular momentum (OAM) have become essential tools in Atomic, Molecular, and Optical (AMO) studies, particularly for investigating strong-field light-matter interactions. However, controlling and…

Orbital angular momentum (OAM) light beams for high-order harmonic generation (HHG) provide an additional degree of freedom to study the light-matter interaction at ultrafast timescales. A more sophisticated configuration is a perfect…

Optics · Physics 2024-10-01 Bikash Kumar Das , C. Granados , M. Krüger , Marcelo F. Ciappina

We demonstrate numerically the possibility of generation of vector platicons having orthogonally polarized components by the modulated pump at normal GVD. Dynamics of this process can be controlled by pump polarization and depends on both…

The unwanted zero-order diffraction is still an issue in beam shaping using pixelated spatial light modulators. In this paper, we report a new approach for zero-order free beam shaping by designing an asymmetric triangle reflector and…

Optics · Physics 2022-04-13 Yansheng Liang , Xue Yun , Minru He , Zhaojun Wang , Ming Lei

We present the transfer of the spatially variant polarization of topologically structured light to the spatial spin texture in a semiconductor quantum well. The electron spin texture, which is a circular pattern with repeating spin-up and…

Mesoscale and Nanoscale Physics · Physics 2023-03-30 Jun Ishihara , Takachika Mori , Takuya Suzuki , Sota Sato , Ken Morita , Makoto Kohda , Yuzo Ohno , Kensuke Miyajima

Orbital angular momentum (OAM) based structured light beams provide an additional degree of freedom for practical applications ranging from optical communication to laser-based material processing. Many techniques exist for generating such…

Optical vortex and vector field are two important types of structured optical fields. Due to their wide applications and unique features in many scientific realms, the generation, manipulation and measurement of such fields have attracted…

Optics · Physics 2021-02-03 Zhi-Cheng Ren , Zi-Mo Cheng , Xi-Lin Wang , Jianping Ding , Hui-Tian Wang

This work describes a novel approach to time-multiplexed holographic projection on binary phase devices. Unlike other time-multiplexed algorithms where each frame is the inverse transform of independently modified target images,…

Image and Video Processing · Electrical Eng. & Systems 2020-08-27 Peter J. Christopher , Ralf Mouthaan , Vamsee Bheemireddy , Timothy D. Wilkinson

We have built and tested a compact, low-cost, but very-high-performance astronomical polarimeter based on a continuously rotating half-wave plate and a high-speed imaging detector. The polarimeter is suitable for small telescopes up to ~1 m…

Instrumentation and Methods for Astrophysics · Physics 2023-02-08 Jeremy Bailey , Daniel V. Cotton , Ain De Horta , Lucyna Kedziora-Chudczer , Om Shastri

In this paper, we present the experimental generation of Airy beams via computational and photorefractive holography. Experimental generation of Airy beams using conventional optical components presents several difficulties and are…

We describe a method for producing high power, coherent x-ray pulses from a free electron laser with femtosecond scale periodic temporal modulation of the polarization vector. This approach relies on the generation of a temporal intensity…

Accelerator Physics · Physics 2020-12-30 Nicholas Sudar , Ryan Coffee , Erik Hemsing

Photon pair generation in silicon photonic integrated circuits relies on four wave mixing via the third order nonlinearity. Due to phase matching requirements and group velocity dispersion, this method has typically required TE polarized…

The need for spatial and spectral filtering in the generation of polarization entanglement is eliminated by combining two coherently-driven type-II spontaneous parametric downconverters. The resulting ultrabright source emits photon pairs…

Multiple-beam holography has been widely used for the realization of photonic quasicrystals with high rotational symmetries not achievable by the conventional periodic crystals. Accurate control of the properties of the interfering beams is…

Optics · Physics 2013-11-05 G Zito , B Piccirillo , E Santamato , A Marino , V Tkachenko , G Abbate

The vectorial structure of light, amplitude, phase, and polarization, encodes essential information for applications ranging from super-resolution microscopy to high-capacity communications and quantum information processing. However,…

Tomographic volumetric 3D printing offers layer free, rapid fabrication of objects with high design freedom, but is limited to relatively small curing volumes because of the optical constraints imposed by an assumed need for telecentricity.…

Optics · Physics 2025-10-10 Hossein Safari , S. Kaveh Hedayati , Aminul Islam , Yi Yang

We discuss and compare three algorithms for generating holograms: simple rounding, Floyd-Steinberg error diffusion dithering, and mixed region amplitude freedom (MRAF). The methods are optimised for producing large arrays of tightly focused…

Image and Video Processing · Electrical Eng. & Systems 2017-11-22 Naomi Holland , Dustin Stuart , Oliver Barter , Axel Kuhn