2 papers
physics.optics2026
Low peak-power pulse compression in gas-filled Herriott cells in the 2 μm wavelength range
Johann Gabriel Meyer, Felix Ritzkowsky, Fatemehsadat Ghaffari +5
At laser wavelengths longer than the prominent 1 μm range of high-power ytterbium-doped lasers, nonlinear phase shifts produced in nonlinear media for spectral broadening and subs…
physics.optics2026
Free-space quasi-phase matched second harmonic generation in crystalline quartz
Nazar Kovalenko, Ankit Pai, Oleg Pronin
We report experimental results on second-harmonic generation in a z-cut quartz crystal under conditions of free-space quasi-phase matching in a multi-pass cell. In a 62-pass config…