Few-cycle mid-infrared pulses from BaGa2GeSe6
| Autor: | Valeriy Badikov, Dmitrii Badikov, Luke Maidment, F. Haberstroh, Valentin Petrov, Ugaitz Elu, Tobias Steinle, Lenard Vamos, Jens Biegert |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Doctorat en Fotònica |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
FOS: Physical sciences Radiació infraroja 02 engineering and technology 01 natural sciences 7. Clean energy 010309 optics Crystal Optics Sampling (signal processing) Electric field 0103 physical sciences Dispersion (optics) Optical and electronic materials Spectroscopy Infrared radiation Física [Àrees temàtiques de la UPC] business.industry Pulse duration Materials òptics 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Pulse (physics) 0210 nano-technology business Ultrashort pulse Optics (physics.optics) Physics - Optics |
| Zdroj: | Optics Letters UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | B a G a 2 G e S e 6 (BGGSe) is a newly developed nonlinear material that is attractive for ultrabroad frequency mixing and ultrashort pulse generation due to its comparably low dispersion and high damage threshold. A numerical study shows the material’s capacity for octave-spanning mid-infrared pulse generation up to 18 µm. In a first experiment, we show that a long crystal length of 2.6 mm yields a pulse energy of 21 pJ at 100 MHz with a spectral bandwidth covering 5.8 to 8.5 µm. The electric field of the carrier-envelope-phase stable pulse is directly measured with electro-optical sampling and reveals a pulse duration of 91 fs, which corresponds to sub-four optical cycles, thus confirming some of the prospects of the material for ultrashort pulse generation and mid-infrared spectroscopy. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|