Latest papers

2025

Development of thin deformable x-ray mirrors for synchrotron applications
Xiaoya Chong, Kenneth M. Buffo, Philip Griffin, Pannawit Tipsawat, Casey DeRoo, Susan Trolier-McKinstry, Bryan Ochoa, Diane Bryant, Morgan Ericksen, Ali Sabbah, Nicolás Smith, Ian Lacey, Valeriy Yashchuk, Kenneth A. Goldberg, Antoine Islegen-Wojdyla
Proceedings Volume 13620, Advances in X-Ray/EUV Sources, Optics, and Components XX; 136200D (2025)
https://doi.org/10.1117/12.3065469 – Submitted DRAFT (pdf)

Metrology of thin adaptive optics for x-ray beamlines
Kenneth Buffo, Casey DeRoo, Philip Griffin, Antoine Islegen-Wojdyla, Xiaoya Chong, Kenneth Goldberg, Bryan Ochoa, Susan Trolier-McKinstry, Pannawit Tipsawat
Proceedings Volume 13620, Advances in X-Ray/EUV Sources, Optics, and Components XX; 136200M (2025)
https://doi.org/10.1117/12.3063585 –  Submitted DRAFT (pdf)

Assessing adaptive optics for fast polarization switching of synchrotron light for x-ray magnetic circular dichroism
Johnny Ho, Antoine Islegen-Wojdyla, Xiaoya Chong, Ali Sabbah, Kenneth A. Goldberg, Alpha T. N'Diaye
Proceedings Volume 13620, Advances in X-Ray/EUV Sources, Optics, and Components XX; 1362008 (2025)
https://doi.org/10.1117/12.3064047 -  Submitted DRAFT (pdf)

Demonstration of a dual-beam zone plate for phase-contrast coherent soft x-ray imaging
Wei He, Antoine Islegen-Wojdyla, Alexander Ditter, Rourav Basak, Weilun Chao, Nicolas Burdet, Xiaoya Chong, Chaoying Gu, Alex Frañó, Sujoy Roy, Andreas Scholl, David Shapiro, Kenneth Goldberg
Proceedings Volume 13620, Advances in X-Ray/EUV Sources, Optics, and Components XX; 136200H (2025)
https://doi.org/10.1117/12.3063646 – Submitted DRAFT (pdf)

A review and analysis of Fourier transform spectroscopy in the soft X-ray region: advancing historical designs with modern technology
Andrew Lindburg, Chuzida Chen, Honghe Ding, Per-Anders Glans, Antoine Islegen-Wojdyla, Victor White, Kenneth A. Goldberg, Jinghua Guo
Proceedings Volume 13620, Advances in X-Ray/EUV Sources, Optics, and Components XX; 136200Q (2025)
https://doi.org/10.1117/12.3064137 – Submitted DRAFT (pdf)

Theoretical Framework for Soft X-ray Fourier Transform Spectroscopy Using Wigner Function
Chuzida Chen, Andrew Lindburg, Honghe Ding, Antoine Wojdyla, Howard Padmore, Per-Anders Glans and Jinghua Guo
Journal of Synchrotron Radiation, submitted (working draft, LBNL access only)

Automated beamline alignment at the advanced light source with bluesky
Antoine Islegen-Wojdyla et al., Proc. of SPIE (2025)

Comparison between invasive and non-invasive photon beam monitors in the tender x-ray regime for beamline diagnostics, optimization, and feedback
Xiaoya Chong, Thomas W. Morris, Tyler Forgacs, Kenneth A. Goldberg, Antoine Islegen-Wojdyla
Proceedings Volume 13620, Advances in X-Ray/EUV Sources, Optics, and Components XX; 136200N (2025)
https://doi.org/10.1117/12.3065155  – Submitted DRAFT (pdf)

Maintainable Web Interfaces At Beamlines
S. De Leon, F. Rodolakis, E. McGann, D. Allen, A. Kaufman, R. Hamlyn, E. Crumlin, N. Manhs, K. Iliev, J. Mahl, P. Glans, A. Islegen-Wojdyla, A. Hexemer, D. McReynolds
ICALEPCS 2025 (Chicago, IL, USA) (preliminary draft pdf, LBNL access only)

Latest Progress On Two New ALS-U Beamlines For Diffraction-Limited Performance
M. Bergeret, A. Islegen-Wojdyla, S. Morton, G. Cutler, R. Johnson, J. Hervey, S. Gleason, E. Gullikson, K. La Fleche, A. Allézy, R. Armstrong, H. Alvarez, D. Bryant, K. A. Goldberg, E. DiMasi, S. Shah, D. Cocco, C. Jensen, S. Kumar
MEDSI 2025,  Lund, Sweden (submitted draft pdf, LBNL access only)

A Fast Method for Generating Synchrotron Radiation Ray Traces at the ALS
Maxime Bergeret, Adrian Spucces, Antoine Wojdyla and Stefania Trovati
Journal of Physics: Conference Series 3010 012014 (2025)
https://doi.org/10.1088/1742-6596/3010/1/012014

Fabrication and characterization of a full-size ultra-precise lamellar grating for the Cosmic beamline at ALS-U
Dmitriy Voronov, Sooyeon Park, Lei Huang, Antoine Islegen-Wojdyla, Eric Gullikson, Howard Padmore, Tianyi Wang and Mourad Idir
Journal of Synchrotron Radiation 32, 5 (2025)
https://doi.org/10.1107/S1600577525005946

Enhanced EUV Mask Imaging Using Fourier Ptychographic Microscopy
Chaoying Gu, Antoine Islegen-Wojdyla, Markus Benk, Kenneth A. Goldberg, and Laura Waller
Optical and EUV Nanolithography XXXVIII, Proc. of SPIE Vol. 13424, 134240S (2025)
https://doi.org/10.1117/12.3051223

2024

A General Bayesian Algorithm for the Autonomous Alignment of Beamlines
T.W. Morris, M. Rakitin, Y. Du, M. Fedurin, A.C. Giles, D. Leshchev, W.H. Li, B. Romasky, E. Stavitski, A.L. Walter, P. Moeller, B.  Nash, A. Islegen-Wojdyla
Journal of  Synchrotron Radiation 31 (2024), https://doi.org/10.1107/S1600577524008993

Towards Full Field-of-View Fourier Ptychography for Extreme Ultraviolet Microscope
C Gu, A Islegen-Wojdyla, M Benk; KA Goldberg; L Waller, IEEE CISA 2024 doi.org/10.1109/CISA60639.2024.10576262

2023

X-ray wavefront sensor development at the Advanced Light Source
K. A Goldberg, A. Wojdyla, D. Bryant, X. Shi, L. Rebuffi, M. Frith, M. Highland, L. Assoufid, Y. Ichii, T. Inoue, K. Yamauchi
Proceedings of SPIE 12695, Advances in Metrology for X-Ray and EUV Optics X; 126950B (2023) https://doi.org/10.1117/12.2679136

Exploring the use of x-ray adaptive optics in soft x-ray grating monochromators with wavefront propagation simulations
P. Luna, A. Wojdyla
Proceedings of SPIE 12697, Advances in Computational Methods for X-Ray Optics VI; 1269705 (2023) https://doi.org/10.1117/12.2677719

Latent Bayesian optimization for the autonomous alignment of synchrotron beamlines
T. W. Morris, Y. Du, M. Fedurin, A. C. Giles, P. Moeller, B. Nash, M. Rakitin, B. Romasky, A. L. Walter, N. Wilson, A. Wojdyla
Proceedings of SPIE 12697, Advances in Computational Methods for X-Ray Optics VI; 126970B (2023) https://doi.org/10.1117/12.2677895

Real-time machine-learning-driven control system of a deformable mirror for achieving aberration-free X-ray wavefronts
L. Rebuffi, X. Shi, Z. Qiao, M. J. Highland, M.G. Frith, A. Wojdyla, K. A. Goldberg, and L. Assoufid
Optics Express 31,  13 (2023)  https://doi.org/10.1364/OE.488189

Data-driven modeling and control of an X-ray bimorph adaptive mirror
G. Gunjala, A. Wojdyla, K. A. Goldberg, Z. Qiao, X. Shi, L. Assoufid and L. Waller;
J. Synchrotron Rad. (2023). 30, 57-64 https://doi.org/10.1107/S1600577522011080

Fabrication of low blaze angle gratings by replication and plasma etch
Sooyeon Park, Dmitriy L. Voronov, Antoine Wojdyla, Eric M. Gullikson, Fahard Salmassi, Howard A. Padmore
Proceedings of SPIE 12240, Advances in X-Ray/EUV Optics and Components XVII; 1224008 (2022) https://doi.org/10.1117/12.2633512

Beamline Optics and Modeling School (BLOMS) 2023
K. A. Goldberg
Journal of Synchrotron Radiations (2023), https://doi.org/10.1080/08940886.2023.2274746

Wavefront Preservation in Soft X-Ray Beamlines for the Advanced Light Source Upgrade
Antoine Wojdyla, Kenneth A Goldberg on behalf of the ALS-U Beamline and optical systems team
Synchrotron Radiation News 34, 6 (2021) https://doi.org/10.1080/08940886.2021.2022398 

Repositories

github.com/dream-beam

https://github.com/mmorst/Supreme

https://github.com/awojdyla/reticolo-blazr

Private:

https://github.com/gautamgunjala/adaptiveXrayOptics

https://github.com/paola-luna24/Monoplus-project

...

https://als.lbl.gov/shaping-x-ray-mirrors-using-machine-learning/

doi.org/10.1107/S1600577522011080

X-ray Adaptive Optics

MALAX: Machine learning for adaptive optics

https://github.com/gautamgunjala/adaptiveXrayOptics

https://github.com/gautamgunjala/speckleAberrationRecovery

Wavefront Sensing for x-rays

X-ray wavefront sensor development at the Advanced Light Source

https://doi.org/10.1117/12.2679136

Wavefront engineering

Monoplus

Exploring the use of x-ray adaptive optics in soft x-ray grating monochromators with wavefront propagation simulations

https://doi.org/10.1117/12.2677719

Advanced Light Source upgrade

The Adanced Light Source

Other Projects

Gemini 2

SUPREME: Speckle Position Monitoring

https://github.com/mmorst/Supreme