SKM 2023 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 48: Ultra-fast Phenomena

HL 48.2: Talk

Friday, March 31, 2023, 09:45–10:00, POT 251

Compact, CEP-stable, few-cycle OPCPA for single attosecond pulse generation — •Bastian Manschwetus, Filippo Campi, Thomas Braatz, Sebastian Starosielec, Jan-Heye Buss, Michael Schulz, and Robert Riedel — Class 5 Photonics, Hamburg, Germany

Attosecond technology pathed the way for studying ultrafast electronic processes in atoms, molecules, solids, and complex many body systems. Carrier envelope phase (CEP) stabilization in the few-cycle regime is a key enabler of this technology. A crucial step forward is the demonstration of high-repetition rate optical parametric chirped-pulse amplifier (OPCPA) systems for the generation of phase-stable few-cycle, μJ-level driver pulses for high-harmonic-generation (HHG). In this work, we present an OPCPA providing white light seeded, actively controlled CEP stable, 9 fs pulses around 900 nm center wavelength with 30 μJ pulse energy as a high-harmonic driver for attosecond experiments at 200 kHz repetition rate.