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Alhaddad, S., Grynko, Y., Farheen, H., &; Förstner, J. (2022). Numerical analysis of the coherent mechanism producing negative polarization at backscattering from systems of absorbing particles. Optics Letters, 47(1), 58.https://doi.org/10.1364/ol.444953 

Nikbakht, H., Khoshmehr, M. T., van Someren, B., Teichrib, D., Hammer, M., Förstner, J., &; Akca, B. I. (2022). Asymmetric, non-uniform 3-dB directional coupler with 300-nm bandwidth and a small footprint. Optics Letters, 48(2), 207.https://doi.org/10.1364/ol.476537 

Gao, X., Hu, W., Schumacher, S., &; Ma, X. (2022). Unidirectional vortex waveguides and multistable vortex pairs in polariton condensates. Optics Letters, 47(13), 3235–3238.https://doi.org/10.1364/ol.457724 

Barkhausen, F., Schumacher, S., &; Ma, X. (2020). Multistable circular currents of polariton condensates trapped in ring potentials. Optics Letters.https://doi.org/10.1364/ol.386250 

Ma, X., Kartashov, Y., Ferrando, A., &; Schumacher, S. (2020). Topological edge states of nonequilibrium polaritons in hollow honeycomb arrays. Optics Letters, 45(19), 5311–5314.https://doi.org/10.1364/ol.405844 

Barkhausen, F., Schumacher, S., &; Ma, X. (2020). Multistable circular currents of polariton condensates trapped in ring potentials. Optics Letters, 45(5), 1192–1195.https://doi.org/10.1364/ol.386250 

Ma, X., Kartashov, Y., Kavokin, A., &; Schumacher, S. (2020). Chiral condensates in a polariton hexagonal ring. Optics Letters, 45(20), 5700–5703.https://doi.org/10.1364/ol.405400 

Santandrea, M., Stefszky, M., &; Silberhorn, C. (2019). General framework for the analysis of imperfections in nonlinear systems. Optics Letters, Article 5398.https://doi.org/10.1364/ol.44.005398 

Driben, R., Ma, X., Schumacher, S., &; Meier, T. (2019). Bloch oscillations of multidimensional dark soliton wave packets and light bullets. Optics Letters, 44(6), 1327–1330.https://doi.org/10.1364/ol.44.001327