High-power exclusively type 1 sum-frequency generation of 257-nm radiation in LBO crystals
Year: 2025
Type: article
Abstract: We present a frequency conversion setup using three type I phase-matched LBO crystals for the generation of high-power deep ultraviolet (DUV) radiation by frequency conversion of pulsed infrared laser radiation. The presented approach allows more independent control of the three individual conversion processes compared to LBO-based approaches presented to date. An average output power of 33 W at a wavelength of 257 nm was demonstrated. The duration of the DUV pulses was 3.4 ps, the pulse repetition rate was 400 kHz, and the beam propagation factor was measured to be M 2 = 1.99 at the highest power.
Source: Optics Continuum
Authors: Christian Schmittner, Christoph Röcker, André Loescher, Florian Bienert, Alexandre Dobroc, Denis Balitski, Dominique Lupinski, Thomas Graf, Marwan Abdou Ahmed
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,372
Awards: G3214283916, G885559244
OpenAlex ID: W4412485030