Direct sampling of a light wave in air

被引：117

作者：

Park, Seung Beom ^{[1
]}

Kim, Kyungseung ^{[1
]}

Cho, Wosik ^{[1
,2
]}

Hwang, Sung In ^{[1
]}

Ivanov, Igor ^{[1
]}

Nam, Chang Hee ^{[1
,2
]}

Kim, Kyung Taec ^{[1
,2
]}

机构：

[1] Inst Basic Sci, Ctr Relativist Laser Sci, Gwangju 61005, South Korea

[2] Gwangju Inst Sci & Technol, Dept Phys & Photon Sci, Gwangju 61005, South Korea

来源：

OPTICA | 2018年 / 5卷 / 04期

关键词：

CYCLE LASER-PULSES; MULTIPHOTON IONIZATION; ATTOSECOND METROLOGY; ELECTRIC-FIELD; ATOMS; IONS;

D O I：

10.1364/OPTICA.5.000402

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Temporal characterization of a laser pulse is an essential task in many applications. Temporal characterization methods that are currently available support only a limited spectral bandwidth without information on the carrier-envelope phase (CEP) of the laser pulse or require complicated equipment in a vacuum environment. Here we demonstrate that an arbitrary time-dependent laser field can be directly sampled using subcycle tunneling ionization in a gaseous medium or in air. The subcycle ionization is used as a fast temporal gate for the direct sampling of the laser field. This unique approach enables the complete temporal characterization of the laser field, including its CEP, for a broad spectral range in ambient air, providing a universal tool for the precise measurement of the laser field. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：402 / 408

页数：7

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