Necklace-structured high-harmonic generation for low-divergence, soft x-ray harmonic combs with tunable line spacing.
Necklace-structured high-harmonic generation for low-divergence, soft x-ray harmonic combs with tunable line spacing.
复制标题
DOI:
10.1126/sciadv.abj7380
复制
发表时间:
2022-02-04
期刊:
影响因子:
13.6
通讯作者:
Hernández-García C
中科院分区:
文献类型:
--
作者:
Rego L;Brooks NJ;Nguyen QLD;Román JS;Binnie I;Plaja L;Kapteyn HC;Murnane MM;Hernández-García C
The extreme nonlinear optical process of high-harmonic generation (HHG) makes it possible to map the properties of a laser beam onto a radiating electron wave function and, in turn, onto the emitted x-ray light. Bright HHG beams typically emerge from a longitudinal phased distribution of atomic-scale quantum antennae. Here, we form a transverse necklace-shaped phased array of linearly polarized HHG emitters, where orbital angular momentum conservation allows us to tune the line spacing and divergence properties of extreme ultraviolet and soft x-ray high-harmonic combs. The on-axis HHG emission has extremely low divergence, well below that obtained when using Gaussian driving beams, which further decreases with harmonic order. This work provides a new degree of freedom for the design of harmonic combs—particularly in the soft x-ray regime, where very limited options are available. Such harmonic beams can enable more sensitive probes of the fastest correlated charge and spin dynamics in molecules, nanoparticles, and materials. Phased-necklace driving beams enable precise coherent control over the line spacing and divergence of EUV/soft x-ray harmonics.
登录
查看更多内容
影响因子:
56.9
作者:
Bartels, RA;Paul, A;Jacobsen, C
通讯作者:
Jacobsen, C
DOI:
10.1073/pnas.1519666112
发表时间:
2015-11-17
影响因子:
11.1
作者:
Fan, Tingting;Grychtol, Patrik;Kapteyn, Henry C.
通讯作者:
Kapteyn, Henry C.
影响因子:
12.5
作者:
Baykusheva, Denitsa;Worner, Hans Jakob
通讯作者:
Worner, Hans Jakob
影响因子:
35
作者:
Emma, P.;Akre, R.;Galayda, J.
通讯作者:
Galayda, J.
影响因子:
64.8
作者:
Bartels, R;Backus, S;Kapteyn, HC
通讯作者:
Kapteyn, HC