Ultrafast Pulse Sha** Techniques: From Temporal to Spatiotemporal Control
A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Lasers, Light Sources and Sensors".
Deadline for manuscript submissions: 15 November 2024 | Viewed by 937
Special Issue Editors
Interests: nonlinear optics; nano-optics; ultrafast optics
Interests: nonlinear optics; ultrafast laser; structure beam
Interests: liquid crystal superstructures; soft-mater photonics; liquid crystal devices
Special Issue Information
Dear Colleagues,
In the progress of photonics and optoelectronics, ultrafast pulse sha** has surfaced as a pivotal technology. Operating on femtosecond to picosecond timescales, this technology recently extended beyond temporally sha** to incorporate spatial modes, leading to structured light pulses and even more complex spatiotemporal beams. Such groundbreaking advancements have ushered in new explorative avenues in both classical and quantum optics, demonstrating potential in super-resolution imaging, nanofabrication, and quantum information processing. A diverse array of strategies is employed for ultrafast pulse control in the linear optics region. Among these, liquid crystal devices have shown significant promise due to their flexibility and tunability. Other notable methods include metamaterials, passive fibers, grating pairs, digital micromirror devices, etc. Additionally, ultrafast pulses can be controlled via intra-cavity nonlinear dynamics in lasers and microresonators or by using extra-cavity nonlinear devices.
In this Special Issue, "Ultrafast Pulse Sha** Techniques: From Temporal to Spatiotemporal Control", we invite contributions that underscore the recent advancements and innovative applications in this rapidly evolving field. We welcome theoretical, numerical, and experimental studies, including (but not limited to):
- Novel techniques for sha** ultrafast pulse in temporal, spatial, and spatiotemporal domains with the use of liquid crystal and other devices;
- Novel effects and techniques in frequency conversion;
- Ultrafast pulse characterization methods;
- Ultrafast light–matter interactions;
- Applications of ultrafast pulse sha** in super-resolution imaging, nanofabrication, quantum information processing, material science, and optical communications;
- Biomedical applications that leverage ultrafast pulse sha**;
- Exploration of ultrafast phenomena enabled by advanced pulse sha**;
- Pulse sha** in nonlinear optics and spectroscopy;
- Challenges and solutions in the development and application of advanced pulse sha** techniques.
Dr. Wei Chen
Dr. **tao Fan
Dr. Lingling Ma
Guest Editors
Manuscript Submission Information
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Keywords
- ultrafast pulse sha**
- structured light
- liquid crystals
- spatiotemporal optical fields
- super-resolution imaging
- nanofabrication
- quantum information processing
- nonlinear optics
Planned Papers
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Spatio-temporal dynamics of pulses in multimode fibers
Authors: Yuval Tamir; Sara Meir; Hamootal Duadi; Moti Fridman
Affiliation: Faculty of Engineering and the Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan, Israel
Abstract: Spatial modes in multimode fibers interact with each other through nonlinear processes leading to various spatio-temporal dynamics. Studying the dynamics of such interactions can open a new route for understanding ultrafast modal phenomena. In this research, we measure the temporal and spatial dynamics of ultrafast multimode signals in a high temporal resolution. We study the modal dynamics of each spatial mode inside multimode fibers as a function of time, intensity, and wavelength. We derive the spatial coupling, identify the energy transfer between the modes, and show that it is possible to transfer the energy even when the overlap integral vanishes and the coupling between the modes is zero.
