Free-electron-driven X-ray caustics from strained van der Waals materials

Tunable control of X-ray waves remains an open challenge of critical importance for applications in high-resolution X-ray spectroscopy, medical imaging, and radiation therapy. Unlike in the X-ray regime, control over light waves in the visible and IR regimes is ubiquitous in a vast range of applicat...

Full description

Saved in:
Bibliographic Details
Main Authors: Shi, Xihang, Shentcis, Michael, Kurman, Yaniv, Wong, Liang Jie, de Abajo, F. Javier Garcia, Kaminer, Ido
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2023
Subjects:
Online Access:https://hdl.handle.net/10356/171498
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-171498
record_format dspace
spelling sg-ntu-dr.10356-1714982023-10-27T15:40:04Z Free-electron-driven X-ray caustics from strained van der Waals materials Shi, Xihang Shentcis, Michael Kurman, Yaniv Wong, Liang Jie de Abajo, F. Javier Garcia Kaminer, Ido School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Local Strain Graphene Tunable control of X-ray waves remains an open challenge of critical importance for applications in high-resolution X-ray spectroscopy, medical imaging, and radiation therapy. Unlike in the X-ray regime, control over light waves in the visible and IR regimes is ubiquitous in a vast range of applications, and typically relies on widely available optical components. However, analogous optical elements for X-rays are usually inefficient and challenging to fabricate. Here, we propose a method for shaping X-ray waves directly at the source, using the interaction of free electrons with crystalline materials. Specifically, by inducing strain on van der Waals materials, we control their interaction with free electrons in a manner that tunes the emissions of the X-rays and forms caustic X-ray beams. The development of wave-shaping concepts like caustics generation in the X-ray spectral range could benefit from achievements in this field in the optical range and may help bypass the noted limits of current X-ray optics technology. Looking forward, shaping the interference of X-rays at the atomic scale could enable further developments in high-resolution X-ray science. National Research Foundation (NRF) Published version This work was funded by European Research Council (Advanced 789104-eNANO, Starter 851780); United States-Israel Binational Science Foundation (2018288); Ministerio de Ciencia e Innovación (PID2020-112625GB- I00, Severo Ochoa CEX2019-000910-S); National Research Foundation Singapore (NRF2020-NRF-ISF004-3525). 2023-10-27T04:17:54Z 2023-10-27T04:17:54Z 2023 Journal Article Shi, X., Shentcis, M., Kurman, Y., Wong, L. J., de Abajo, F. J. G. & Kaminer, I. (2023). Free-electron-driven X-ray caustics from strained van der Waals materials. Optica, 10(2), 292-301. https://dx.doi.org/10.1364/OPTICA.472462 2334-2536 https://hdl.handle.net/10356/171498 10.1364/OPTICA.472462 2-s2.0-85152419817 2 10 292 301 en NRF2020-NRF-ISF004-3525 Optica © 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Local Strain
Graphene
spellingShingle Engineering::Electrical and electronic engineering
Local Strain
Graphene
Shi, Xihang
Shentcis, Michael
Kurman, Yaniv
Wong, Liang Jie
de Abajo, F. Javier Garcia
Kaminer, Ido
Free-electron-driven X-ray caustics from strained van der Waals materials
description Tunable control of X-ray waves remains an open challenge of critical importance for applications in high-resolution X-ray spectroscopy, medical imaging, and radiation therapy. Unlike in the X-ray regime, control over light waves in the visible and IR regimes is ubiquitous in a vast range of applications, and typically relies on widely available optical components. However, analogous optical elements for X-rays are usually inefficient and challenging to fabricate. Here, we propose a method for shaping X-ray waves directly at the source, using the interaction of free electrons with crystalline materials. Specifically, by inducing strain on van der Waals materials, we control their interaction with free electrons in a manner that tunes the emissions of the X-rays and forms caustic X-ray beams. The development of wave-shaping concepts like caustics generation in the X-ray spectral range could benefit from achievements in this field in the optical range and may help bypass the noted limits of current X-ray optics technology. Looking forward, shaping the interference of X-rays at the atomic scale could enable further developments in high-resolution X-ray science.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Shi, Xihang
Shentcis, Michael
Kurman, Yaniv
Wong, Liang Jie
de Abajo, F. Javier Garcia
Kaminer, Ido
format Article
author Shi, Xihang
Shentcis, Michael
Kurman, Yaniv
Wong, Liang Jie
de Abajo, F. Javier Garcia
Kaminer, Ido
author_sort Shi, Xihang
title Free-electron-driven X-ray caustics from strained van der Waals materials
title_short Free-electron-driven X-ray caustics from strained van der Waals materials
title_full Free-electron-driven X-ray caustics from strained van der Waals materials
title_fullStr Free-electron-driven X-ray caustics from strained van der Waals materials
title_full_unstemmed Free-electron-driven X-ray caustics from strained van der Waals materials
title_sort free-electron-driven x-ray caustics from strained van der waals materials
publishDate 2023
url https://hdl.handle.net/10356/171498
_version_ 1781793715956744192