Recent Advances in Free Electron Laser Accelerators

Dear Colleagues,

Free electron laser (FEL) accelerators have revolutionized laser technology in recent years. Improved beam dynamics, control systems, and beam quality have enabled unprecedented control over coherent and tunable laser beams. This has opened up new frontiers in scientific research, allowing for enhanced studies in ultrafast processes, materials science, and biological structures. FEL accelerators also find applications in industrial sectors, offering high-precision and high-throughput capabilities for materials processing and advanced manufacturing. Next-generation FEL concepts, such as seeded FELs and energy recovery linacs, offer exciting possibilities for further advancements. These advancements will continue to drive scientific discoveries, industrial innovation, and medical advancements, making FEL accelerators an invaluable tool in various fields.

This Special Issue aims to showcase the latest advancements in the theoretical models, experimental results, and practical applications of FEL accelerators. All theoretical, numerical, and experimental papers are accepted. Topics include, but are not limited to, the following:

• Novel acceleration techniques for FELs;
• Advanced beam diagnostics for FEL accelerators;
• High-gradient structures and advanced acceleration schemes;
• Plasma-based free electron lasers;
• Cryogenic technologies and superconducting accelerators for FELs;
• Ultrafast FEL sources for time-resolved experiments;
• Next-generation FEL concepts and technologies;
• High-power and high-energy FEL accelerators;
• Beam dynamics and control in FEL accelerators;
• FEL technology for particle acceleration and collider applications;
• Applications of FEL accelerators in scientific research, industrial processing, and medical imaging.

Dr. Anna Giribono
Dr. Marcello Rossetti Conti
Dr. Francesco Filippi
Dr. Fabio Cardelli
Dr. Michele Opromolla
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Photonics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.