Contrast enhancement in near-infrared electro-optic imaging

Mamaikin, Mikhail; Ridente, Enrico; Altwaijry, Najd; Weidman, Matthew und Karpowicz, Nicholas (2022): Contrast enhancement in near-infrared electro-optic imaging. In: Optics Express, Bd. 30, Nr. 11: S. 18179-18188

Abstract

Access to subtle ultrafast effects of light-matter interaction often requires highly sensitive field detection schemes. Electro-optic sampling, being an exemplary technique in this regard, lacks high sensitivity in an imaging geometry. We demonstrate a straightforward method to significantly improve the contrast of electric field images in spatially resolved electro-optic sampling. A thin-film polarizer is shown to be an effective tool in enhancing the sensitivity of the electro-optic imaging system, enabling an adjustment of the spectral response. We show a further increase of the signal-to-noise ratio through the direct control of the carrier envelope phase of the imaged field. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 1094-4087
• Sprache: Englisch