The interest in tailoring light in all its degrees of freedom is steadily gaining traction, driven
by the tremendous developments in the toolkit for the creation, control and detection of what …

Geometric phase is a unifying and central concept in physics, including optics. As a matter of
fact, optics played a pivotal role from the inception of this new paradigm, as some of the first …

Research on spatially structured light has seen an explosion in activity over the past
decades, powered by technological advances for generating such light and driven by …

Symmetries and conservation laws of energy, linear momentum, and angular momentum
play a central role in nonlinear optics. Recently, paraxial light fields with nontrivial topology …

The valley degree of freedom,,–of electrons in materials promises routes towards energy-
efficient information storage with enticing prospects for quantum information processing …

High-order harmonic generation stands as a unique nonlinear optical up-conversion
process, mediated by a laser-driven electron recollision mechanism, which has been shown …

Strong-field methods in solids enable new strategies for ultrafast nonlinear spectroscopy
and provide all-optical insights into the electronic properties of condensed matter in …

Spatial-polarization-independent (SPI) parametric conversion is the basis of many optical
applications, such as SPI frequency interfaces for communication channels carried by vector …

The non-linear optical process of laser harmonic generation (HG) enables the creation of
high quality pulses of UV or even X-ray radiation, which have many potential uses at the …

摘要随着激光技术的迅猛发展, 超快光学已经成为现代物理学研究中一个非常重要的前沿领域.
高次谐波作为产生超短激光脉冲的重要手段之一, 在近十年内快速发展. 本文综述了气体高次谐 …