Advances in Ultrafast Science and Applications

A special issue of Photonics (ISSN 2304-6732).

Deadline for manuscript submissions: 31 August 2025 | Viewed by 648

Special Issue Editors


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Guest Editor
Xi’an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences, NO.17 Xinxi Road, New Industrial Park, Xi’an Hi-Tech Industrial Development Zone, Xi’an 710119, China
Interests: ultrafast laser technology; high-power mid-infrared laser technology; laser-induced breakdown spectroscopy; ultrafast laser–matter interactions
School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
Interests: giber-optic-based biosensor; isothemal nucleic acid amplification; nanomaterials; aptamer; public health; environmental monitoring; clinic diagnosis; food safety
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Guest Editor
Xi’an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences, NO.17 Xinxi Road, New Industrial Park, Xi’an Hi-Tech Industrial Development Zone, Xi’an 710119, China
Interests: ultrashort pulse laser; laser-induced surface modification; functional surface; Bessel beams; ultrafast laser technology

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Guest Editor
School of Optoelectronic Engineering, Xidian University, Xi’an 710071, China
Interests: ultrafast laser technology; plasma diagnosis; laser spectroscopy; laser–matter interaction; trace detection

Special Issue Information

Dear Colleagues,

Understanding the ultrafast dynamics of the microscopic world, which underpins all matter, is essential for explaining all biological, chemical, and physical phenomena. Ultrafast science is one of the leading frontiers in global science and technology, characterized by interdisciplinary collaboration and serving as a vital basis for contemporary research. This field utilizes ultrafast laser sources and ultrafast measurement as the main approach to understand, apply, and control macroscopic matter through the measurement and manipulation of ultrafast kinetic processes of microscopic particles.

With exceptional spatial and temporal resolution, ultrafast laser technology has become a pivotal tool in fundamental research, pushing the boundaries of human understanding from picoseconds to femtoseconds and now into the attosecond regime—the shortest time scale currently achievable. Furthermore, ultrafast measurement techniques and the generation of ultrashort pulses hold equal significance as prerequisites for evaluating and utilizing these pulses. By enabling ultrafast applications, this field stands at the cutting edge of science, intersecting multiple disciplines, including information technology, energy, materials science, and biomedicine.

This Special Issue aims to present original, state-of-the-art research articles focusing on advances in ultrafast science and applications. Specifically, we invite contributions addressing developments in ultrafast laser systems and their performance optimization; innovative measurement techniques for ultrafast phenomena; applications of ultrafast lasers in attosecond science, imaging, and spectroscopy; and theoretical and experimental studies on ultrafast dynamics and control. Topics include, but are not limited to, the following:

  • Ultrafast laser technology and novel laser designs;
  • Techniques for characterizing ultrafast light–matter interactions;
  • Advances in time-resolved spectroscopy and imaging methods;
  • Integration of ultrafast technologies in emerging applications;
  • Ultrafast laser processing and its applications.

We look forward to receiving your contributions.

Dr. Bingying Lei
Dr. Zewei Luo
Dr. Rui Lou
Dr. Boping Xu
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 100 words) can be sent to the Editorial Office for announcement on this website.

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.

Keywords

  • ultrafast laser system
  • ultrafast applications
  • ultrashort pulse generation
  • attosecond science
  • ultrafast dynamics
  • nonlinear optics
  • ultrafast laser–matter interactions

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Published Papers (1 paper)

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Research

9 pages, 1934 KiB  
Communication
Four-Channel Nanosecond Pulse Combination in the Non-Polarization-Maintaining Fiber System
by Xinyu Wang, Qiang Shu, Qiuhui Chu, Chenxu Liu, Yuefang Yan, Jing Wen, Kegong Dong, Rumao Tao, Haoyu Zhang, Honghuan Lin and Jianjun Wang
Photonics 2025, 12(4), 363; https://doi.org/10.3390/photonics12040363 - 10 Apr 2025
Viewed by 243
Abstract
We report a novel coherent nanosecond pulse combination approach using four-channel non-polarization-maintaining large-mode-area (LMA) Ytterbium-doped (Yb-doped) fiber amplifiers. The stochastic parallel gradient descent (SPGD) and frequency dithering algorithm are introduced to stabilize the synchronization in polarizations and phases among all the channels. The [...] Read more.
We report a novel coherent nanosecond pulse combination approach using four-channel non-polarization-maintaining large-mode-area (LMA) Ytterbium-doped (Yb-doped) fiber amplifiers. The stochastic parallel gradient descent (SPGD) and frequency dithering algorithm are introduced to stabilize the synchronization in polarizations and phases among all the channels. The system delivers an average power of ~250 W and a pulse duration of 4 ns with a combination efficiency of around 87% when the repetition rate of a single pulse is limited to 1 MHz, the polarization extinction ratio (PER) at 30 μm core diameter and 250 μm cladding diameter remains around 96%. Full article
(This article belongs to the Special Issue Advances in Ultrafast Science and Applications)
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