Broadband mid-infrared pulse via intra-pulse difference frequency generation based on supercontinuum from multiple thin plates*
| Autor: | Huijun He, Zhiyi Wei, Zhi-Yuan Li, Kun Zhao, Chen-Yang Hu, Hao Teng, Hangdong Huang |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry Attosecond Amplifier Energy conversion efficiency General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology Laser 01 natural sciences Supercontinuum Pulse (physics) law.invention Optics law 0103 physical sciences Sapphire 010306 general physics 0210 nano-technology business Doppler broadening |
| Zdroj: | Chinese Physics B. 28:114203 |
| ISSN: | 1674-1056 |
| DOI: | 10.1088/1674-1056/ab4579 |
| Popis: | We report on the generation of optical pulses with a nearly one octave-spanning spectrum ranging from 1300 nm to 2500 nm at 1 kHz repetition rate, which are based on intra-pulse difference frequency generation (DFG) in β-barium borate crystal (β-BBO) and passively carrier-envelope-phase (CEP) stabilized. The DFG is induced by few-cycle pulses initiated from spectral broadening in multiple thin plates driven by a Ti: sapphire chirped-pulse amplifier. Furthermore, a numerical simulation is developed to estimate the conversion efficiency and output spectrum of the DFG. Our results show that the pulses from the DFG have the potential for seeding intense mid-infrared (MIR) laser generation and amplification to study strong-field physics and attosecond science. |
| Databáze: | OpenAIRE |
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