Institute of Electrical and Electronics Engineers (IEEE)

, volume 2018-September

Enhanced Transmission of Thz Radiation Through Fe²+: ZnSe Crystals

Maria O. Zhukova ¹

Yaroslav V Grachev ¹

Anton N. Tcypkin ¹

Sergey E Putilin ¹

Vladimir P Chegnov ¹

Olga I Chegnova ²

Victor G. Bespalov ¹

Hide authors affiliations Show authors affiliations: 2 affiliations

ITMO University, St Petersburg 197101, Russia. |

Research Institute of Materials Science and Technology, Moscow, 124460, Russia |

Publication type: Proceedings Article

Publication date: 2018-09-01

Institute of Electrical and Electronics Engineers (IEEE)

DOI: 10.1109/IRMMW-THz.2018.8509857

Copy DOI

Abstract

By doping ZnSe crystals with Fe2+ ions at a level of 0.23 wt. %, the transmission of broadband terahertz (THz) radiation from 0.4 to 0.5 THz range have been enhanced for up to 20%. The sample transmission was carried out using a terahertz time-domain spectroscopy setup. To explain the arising effect and changes in band structure, non-linear absorption of undoped and Fe-doped ZnSe samples were studying using femtosecond pump - supercontinuum probe spectroscopy in visible and NIR spectral ranges. Such enhanced transmission of Fe2+: ZnSe can be applied for creating terahertz radiation control devices.