Synthesizing ultrafast optical pulses with arbitrary spatiotemporal control

被引：44

作者：

Chen, Lu ^{[1
,2
]}

Zhu, Wenqi ^{[1
,2
]}

Huo, Pengcheng ^{[3
]}

Song, Junyeob ^{[1
]}

Lezec, Henri J. ^{[1
]}

Xu, Ting ^{[3
]}

Agrawal, Amit ^{[1
]}

机构：

[1] NIST, Gaithersburg, MD 20899 USA

[2] Univ Maryland, College Pk, MD 20742 USA

[3] Nanjing Univ, Coll Engn & Appl Phys, Nanjing, Peoples R China

来源：

SCIENCE ADVANCES | 2022年 / 8卷 / 43期

关键词：

ORBITAL ANGULAR-MOMENTUM; SPECTROSCOPY;

D O I：

10.1126/sciadv.abq8314

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The ability to control the instantaneous state of light, from high-energy pulses down to the single-photon level, is an indispensable requirement in photonics. This has, for example, facilitated spatiotemporal probing and coher-ent control of ultrafast light-matter interactions, and enabled capabilities such as generation of exotic states of light with complexity, or at wavelengths, that are not easily accessible. Here, by leveraging the multifunctional control of light at the nanoscale offered by metasurfaces embedded in a Fourier transform setup, we present a versatile approach to synthesize ultrafast optical transients with arbitrary control over its complete spatiotemporal evolution. Our approach, supporting an ultrawide bandwidth with simultaneously high spectral and spatial reso-lution, enables ready synthesis of complex states of structured space-time wave packets. We expect our results to offer unique capabilities in coherent ultrafast light-matter interactions and facilitate applications in microscopy, communications, and nonlinear optics.

引用

页数：10