PT Unknown AU Augenstein, Y Vetter, A Lahijani, BV Herzig, HP Kim, M Rockstuhl, C TI Inverse Photonic Design of Functional Elements That Focus Bloch Surface Waves SE 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC): Munich, International Congress Centre (ICM), Germany, 23-27 June 2019 PY 2019 DI 10.1109/CLEOE-EQEC.2019.8873094 LA english PI München, Deutschland ER