Broadband terahertz pulse generation driven by an ultrafast thin-disk laser oscillator

Autor: Clément, Paradis, Drs, Jakub, Modsching, Norbert, Razskazovskaya, Olga, Meyer, Frank, Kränkel, Christian, Saraceno, Clara J, Wittwer, Valentin J, Südmeyer, Thomas
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Popis: We demonstrate broadband THz generation driven by an ultrafast thin-disk laser (TDL) oscillator. By optical rectification of 50-fs pulses at 61 MHz repetition rate in a collinear geometry in crystalline GaP, THz radiation with a central frequency at around 3.4 THz and a spectrum extending from below 1 THz to nearly 7 THz are generated. We realized a spectroscopic characterization of a GaP crystal and a benchmark measurement of the water-vapor absorption spectrum in the THz range. Sub-50-GHz resolution is achieved within a 5 THz bandwidth. Our experiments show the potential of ultrafast TDL oscillators for driving MHz-repetition-rate broadband THz systems.
Databáze: OpenAIRE