Boosting third-order nonlinearities in rutile TiO<sub>2</sub> by chromium doping
M. Brinkmann, F. Meier, V. Spedt, C. Meier, Optics Express 33 (2025).

In vacuum metasurface for optical microtrap array
D. Li, Q. Liao, B. Xu, T. Zentgraf, E. Narvaez Castaneda, Y. Zhou, K. Qin, Z. Xu, H. Shen, L. Huang, Optics Express 33 (2025).

Widely non-degenerate nonlinear frequency conversion in cryogenic titanium in-diffused lithium niobate waveguides
N.A. Lange, S. Lengeling, P. Mues, V. Quiring, W. Ridder, C. Eigner, H. Herrmann, C. Silberhorn, T. Bartley, Optics Express 33 (2025).

Ultrabright, two-color photon pair source based on thin-film lithium niobate for bridging visible and telecom wavelengths
S. Babel, L. Bollmers, F. Roeder, W. Ridder, C. Golla, R. Köthemann, B. Reineke, H. Herrmann, B. Brecht, C. Eigner, L. Padberg, C. Silberhorn, Optics Express 33 (2025).

Tailored second harmonic generation inTi-diffused PPLN waveguides usingmicro-heaters
J. Babai-Hemati, F. vom Bruch, H. Herrmann, C. Silberhorn, Optics Express (2024).

Sub-cycle strong-field tunneling dynamics in solids
S. Yang, X. Liu, H. Zhang, X. Song, R. Zuo, T. Meier, W. Yang, Optics Express 32 (2024).

Estimation of losses caused by sidewall roughness in thin-film lithium niobate rib and strip waveguides
M. Hammer, S. Babel, H. Farheen, L. Padberg, J.C. Scheytt, C. Silberhorn, J. Förstner, Optics Express 32 (2024) 22878.

Holographic measurement of gain and linewidth enhancement factor in semiconductor waveguides
L. Zens, V. Besaga, J. Möller, N.C. Gerhardt, M. Hofmann, Optics Express (2024).

Holographic measurement of gain and linewidth enhancement factor in semiconductor waveguides
L. Zens, V. Besaga, J. Möller, N.C. Gerhardt, M. Hofmann, Optics Express (2024).

Pulse characterization at the single-photon level through chronocyclic <i>Q</i>-function measurements
A. Bhattacharjee, P.F. Folge, L.M. Serino, J. ehádek, Z. Hradil, C. Silberhorn, B. Brecht, Optics Express 33 (2024).

Programmable time-frequency mode-sorting of single photons with a multi-output quantum pulse gate
L.M. Serino, C. Eigner, B. Brecht, C. Silberhorn, Optics Express 33 (2024).

Integrated, bright broadband, two-colour parametric down-conversion source
R. Pollmann, F. Roeder, V. Quiring, R. Ricken, C. Eigner, B. Brecht, C. Silberhorn, Optics Express 32 (2024).

Lithium niobate waveguide squeezer with integrated cavity length stabilisation for network applications
M. Stefszky, F. vom Bruch, M. Santandrea, R. Ricken, V. Quiring, C. Eigner, H. Herrmann, C. Silberhorn, Optics Express 31 (2023).

All optical operation of a superconducting photonic interface
F. Thiele, T. Hummel, A.N. McCaughan, J. Brockmeier, M. Protte, V. Quiring, S. Lengeling, C. Eigner, C. Silberhorn, T. Bartley, Optics Express 31 (2023).

Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse
X. Song, S. Yang, G. Wang, J. Lin, L. Wang, T. Meier, W. Yang, Optics Express 31 (2023).

Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler
S. Babel, L. Bollmers, M. Massaro, K.H. Luo, M. Stefszky, F. Pegoraro, P. Held, H. Herrmann, C. Eigner, B. Brecht, L. Padberg, C. Silberhorn, Optics Express 31 (2023).

Fiber-coupled plug-and-play heralded single photon source based on Ti:LiNbO3 and polymer technology
C. Kießler, H. Conradi, M. Kleinert, V. Quiring, H. Herrmann, C. Silberhorn, Optics Express 31 (2023).

Nanosecond gating of superconducting nanowire single-photon detectors using cryogenic bias circuitry
T. Hummel, A. Widhalm, J.P. Höpker, K. Jöns, J. Chang, A. Fognini, S. Steinhauer, V. Zwiller, A. Zrenner, T. Bartley, Optics Express 31 (2023).

Electric-field-induced second harmonic generation in silicon dioxide
A. Widhalm, C. Golla, N. Weber, P. Mackwitz, A. Zrenner, C. Meier, Optics Express 30 (2022).

Brillouin and Raman imaging of domain walls in periodically-poled 5%-MgO:LiNbO3
J. Rix, M. Rüsing, R. Galli, J. Golde, S. Reitzig, L.M. Eng, E. Koch, Optics Express 30 (2022).