Schmidt modes carrying orbital angular momentum generated by cascaded systems pumped with Laguerre–Gaussian beams
D. Scharwald, L. Gehse, P. Sharapova, APL Photonics 10 (2025).

Simultaneous measurement of multimode squeezing through multimode phase-sensitive amplification
I. Barakat, M. Kalash, D. Scharwald, P. Sharapova, N. Lindlein, M. Chekhova, Optica Quantum 3 (2025).

Phase sensitivity of spatially broadband high-gain SU(1,1) interferometers
D. Scharwald, T. Meier, P. Sharapova, Physical Review Research 5 (2023).