Petahertz-scale nonlinear photoconductive sampling in air

Zimin, Dmitry; Weidman, Matthew; Schoetz, Johannes; Kling, Matthias F.; Yakovlev, Vladislav S.; Krausz, Ferenc und Karpowicz, Nicholas (2021): Petahertz-scale nonlinear photoconductive sampling in air. In: Optica, Vol. 8, No. 5: pp. 586-590

Abstract

The electric field waveform of a light field can be used to unlock a detailed recording of its interaction with matter, but accessing it requires a measurement with subfemtosecond temporal resolution. We demonstrate nonlinear photoconductive sampling of light fields at optical frequencies in ambient air. The resulting detection method provides broadband electric field measurement in an inexpensive setup using a self-healing medium. A direct comparison is made between detection in air and in quartz, validating the technique up to 0.7 PHz. This provides both a simple route toward field metrology and a new platform for future studies in attosecond physics without the need for complex vacuum setups or sophisticated sample preparation. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

• Item Type: Journal article
• Faculties: Physics
• Subjects: 500 Science > 530 Physics
• ISSN: 2334-2536
• Language: English