The waveforms of attosecond pulses produced by high-harmonic generation carry information on the electronic structure and dynamics in atomic and molecular systems. Current methods for the temporal characterization of such pulses have limited sensitivity and impose significant experimental complexity. We propose a new linear and all-optical method inspired by widely-used multi-dimensional phase retrieval algorithms. Our new scheme is based on the spectral measurement of two attosecond sources and their interference. As an example, we focus on the case of spectral polarization measurements of attosecond pulses, relying on their most fundamental property -- being well confined in time. We demonstrate this method numerically reconstructing the temporal profiles of attosecond pulses generated from aligned $CO_2$ molecules.
Reducing the Carrier-Envelope-Phase-dependence of High-Harmonic-Generation by Vectorial-Time-Polarization-Gating
Raymond and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University（特拉维夫大学理学院化学系）；Tel-Aviv University Center for Light-Matter-Interaction（特拉维夫大学光物质相互作用中心）
Seeing full vectorial structures of light fields with a single-shot holographic multiplexed detector
School of Optoelectronic Engineering, Xidian University（西安电子科技大学光电工程学院）；Key Laboratory of Light Field Manipulation and System Integration Applications in Fujian Province, School of Physics and Information Engineering, Minnan Normal University（闽南师范大学物理与信息工程学院福建省光场调控与系统集成应用重点实验室）；School of physics, Xidian University（西安电子科技大学物理学院）；State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University（吉林大学电子科学与工程学院集成光学国家重点实验室）
Ultrafast Pulse Retrieval from Partial FROG Traces Using Implicit Diffusion Models
University of California Los Angeles（加州大学洛杉矶分校）；Stanford University（斯坦福大学）；SLAC National Accelerator Laboratory, Stanford University（斯坦福大学SLAC国家加速器实验室）；California NanoSystems Institute（加州纳米系统研究所）
Single-shot pulse retrieval of femtosecond bright squeezed vacuum
Technion – Israel Institute of Technology（以色列理工学院）；Solid State Institute（固态研究所）；Helen Diller Quantum Center（海伦·迪勒量子中心）；The Russell Berrie Nanotechnology Institute（罗素·贝里纳米技术研究所）；Max Planck Institute for the Science of Light（马克斯·普朗克光科学研究所）；Friedrich–Alexander Universität Erlangen–Nürnberg（埃尔朗根-纽伦堡弗里德里希-亚历山大大学）
