Tootfinder

Multiple Reachability in Linear Dynamical Systems
Toghrul Karimov, Edon Kelmendi, Jo\"el Ouaknine, James Worrell
https://arxiv.org/abs/2403.06515 http…

Multiple Reachability in Linear Dynamical Systems
We consider reachability decision problems for linear dynamical systems: Given a linear map on $\mathbb{R}^d$ , together with source and target sets, determine whether there is a point in the source set whose orbit, obtained by repeatedly applying the linear map, enters the target set. When the source and target sets are semialgebraic, this problem can be reduced to a point-to-polytope reachability question. The latter is generally believed not to be substantially harder than the well-known Sko…

Dual-comb mode-locked Yb:CALGO laser based on cavity-shared configuration with separated end mirrors
Ruixin Tang, Ziyu Luo, Pengfei Li, Pengrun Ying, Haiyang Xie, Siyuan Xu, Hui Liu, Jintao Bai
https://arxiv.org/abs/2404.08998

Dual-comb mode-locked Yb:CALGO laser based on cavity-shared configuration with separated end mirrors
Dual-comb spectroscopy typically requires the utilization of two independent and phase-locked femtosecond lasers, resulting in a complex and expensive system that hinders its industrial applications. Single-cavity dual-comb lasers are considered as one of the primary solution to simplify the system. However, controlling the crucial parameter of difference in repetition rates remains challenging. In this study, we present a dual-comb mode-locked Yb:CALGO laser based on a cavity-shared configurat…

This https://arxiv.org/abs/2103.11971 has been replaced.
link: https://scholar.google.com/scholar?q=a

High-repetition-rate seeded free-electron laser with direct-amplification of an external coherent laser
Various scientific and industrial researches such as spectroscopy and advanced nano-technologies have been demanding high flux and fully coherent EUV and X-ray radiation. These demands can be commendably satisfied with a MHz-level repetition-rate seeded free-electron laser (FEL). Dictated by the seed laser system, seeded FELs have faced obstacles for the realization of MHz repetition rate. Reducing the required peak power of an external coherent seed laser can effectively increase the repetitio…