Publications related to Refinement for single-nanoparticle structure determination from low-quality single-shot coherent diffraction data

Inverse design of diffractive optical elements using step-transition perturbation approach

Diffractive optical elements are ultra-thin optical components required for a variety of applications because of their high design flexibility. We introduce a gradient-based optimization method based on a step-transition perturbation approach which is an e ...

WALTER DE GRUYTER GMBH2021

Light pattern generation with hybrid refractive microoptics under Gaussian beam illumination

Toralf Scharf, Maryam Yousefi

The generation of wide-angle diffraction patterns can be done in different ways using either thin diffractive optical elements with small features sizes or arrays of microoptics with large optical paths that are thick diffractive optical elements. Our aim ...

OPTICAL SOC AMER2020

Characterizing crystalline defects in single nanoparticles from angular correlations of single-shot diffracted X-rays

Christoph Bostedt, Alessandro Colombo, Giorgio Rossi

Characterizing and controlling the uniformity of nanoparticles is crucial for their application in science and technology because crystalline defects in the nanoparticles strongly affect their unique properties. Recently, ultra-short and ultra-bright X-ray ...

INT UNION CRYSTALLOGRAPHY2020

Adjoint method and inverse design for diffractive beam splitters

Toralf Scharf, Dong Cheon Kim

Diffractive optical elements with a large diffraction angle require feature sizes down to sub-wavelength dimensions, which require a rigorous electromagnetic computational model for calculation. However, the computational optimization of these diffractive ...

SPIE-INT SOC OPTICAL ENGINEERING2020

Neutron Diffraction and Diffraction Contrast Imaging for Mapping the TRIP Effect under Load Path Change

Helena Van Swygenhoven, Efthymios Polatidis, Markus Strobl

The transformation induced plasticity (TRIP) effect is investigated during a load path change using a cruciform sample. The transformation properties are followed by in-situ neutron diffraction derived from the central area of the cruciform sample. Additio ...

MDPI2020

Imaging plasma formation in isolated nanoparticles with ultrafast resonant scattering

Christoph Bostedt, Daniela Rupp, Alessandro Colombo

We have recorded the diffraction patterns from individual xenon clusters irradiated with intense extreme ultraviolet pulses to investigate the influence of light-induced electronic changes on the scattering response. The clusters were irradiated with short ...

2020

Diffractive Optical Elements Investigation in the Phase Domain

Toralf Scharf, Myun Sik Kim, Dong Cheon Kim, Michail Symeonidis

In this work we demonstrate the advantages of investigating diffractive optical elements in the phase domain. In this regime we can detect features that are not restrained by the diffraction limit and relate them to the geometrical and optical properties o ...

SPIE-INT SOC OPTICAL ENGINEERING2019

Design and Analysis of Binary Fan-out Gratings based on Step-Transition Perturbation Approach

Toralf Scharf, Dong Cheon Kim

Nowadays, diffractive optical elements are used for a variety of applications because of their high design flexibility, compact size, and mass productivity. At the same time, they require having high and complex optical functionalities such as a large numb ...

SPIE-INT SOC OPTICAL ENGINEERING2019

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Refinement for single-nanoparticle structure determination from low-quality single-shot coherent diffraction data

Inverse design of diffractive optical elements using step-transition perturbation approach

Light pattern generation with hybrid refractive microoptics under Gaussian beam illumination

Diffraction artefacts from twins and stacking faults, and the mirage of hexagonal, polytypes or other superstructures

Characterizing crystalline defects in single nanoparticles from angular correlations of single-shot diffracted X-rays

Adjoint method and inverse design for diffractive beam splitters

Neutron Diffraction and Diffraction Contrast Imaging for Mapping the TRIP Effect under Load Path Change

Imaging plasma formation in isolated nanoparticles with ultrafast resonant scattering

Monitoring Spontaneous Charge-Density Fluctuations by Single-Molecule Diffraction of Quantum Light

Diffractive Optical Elements Investigation in the Phase Domain

Design and Analysis of Binary Fan-out Gratings based on Step-Transition Perturbation Approach

Graph Chatbot

Chat with Graph Search

Inverse design of diffractive optical elements using step-transition perturbation approach

Diffraction artefacts from twins and stacking faults, and the mirage of hexagonal, polytypes or other superstructures

Adjoint method and inverse design for diffractive beam splitters

Monitoring Spontaneous Charge-Density Fluctuations by Single-Molecule Diffraction of Quantum Light

Diffractive Optical Elements Investigation in the Phase Domain

Light pattern generation with hybrid refractive microoptics under Gaussian beam illumination

Design and Analysis of Binary Fan-out Gratings based on Step-Transition Perturbation Approach

Imaging plasma formation in isolated nanoparticles with ultrafast resonant scattering

Neutron Diffraction and Diffraction Contrast Imaging for Mapping the TRIP Effect under Load Path Change

Characterizing crystalline defects in single nanoparticles from angular correlations of single-shot diffracted X-rays