報(bào) 告 人：Uwe Griebner（Max Born Institute, Berlin, Germany）

報(bào)告題目：Generation of high-energy few-cycle pulses in the mid-IR and its applications

報(bào)告時(shí)間：2023年11月27日（周一上午10：00 )

報(bào)告地點(diǎn)：物理與電子工程學(xué)院428會議室

主辦單位：物理與電子工程學(xué)院、科學(xué)技術(shù)研究院

BIOGRAPHY

Uwe Griebner received the Ph.D. degree in physics from the Technical University of Berlin, Germany in 1996. His Ph.D. research was on fiber bundle lasers with high average power. Since 1992 he has been with the Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy in Berlin, Germany, working on diode-pumped solid-state lasers, fiber lasers, waveguide lasers, semiconductor lasers, ultrafast lasers and amplifiers, and digital holography. He is currently focused on high-energy few-cycle pulse generation in the midwave and longwave infrared spectral range via optical parametric amplification.

ABSTRACT

Compact optical parametric chirped pulse amplifier (OPCPA) systems generating record peak power levels around 5 μm and 11 μm wavelength are presented. Operating at 1 kHz repetition rate, the 2-μm pumped OPCPAs deliver idler pulses with 3 mJ, 80 fs at 5 μm and 65 μJ, 185 fs at 11 μm wavelength. The 5-μm OPCPA serves as driver for hard X-ray generation whereas nonlinear transmission of water is demonstrated using the 11-μm OPCPA.