Eberhard Spiller, Leon Golub
Applied Optics
A mode index lens and a lens formed by a spherical depression in the substrate of the waveguide have opposite aberrations and can be combined in an element with considerably reduced aberrations. Only small differences in the mode index are required for the optimum combination. © 1974 Optical Society of America.
Eberhard Spiller, Leon Golub
Applied Optics
Ralph Feder, David Sayre, et al.
Journal of Applied Physics
Eberhard Spiller
Optics in Complex Systems 1990
Eberhard Spiller, Alan E. Rosenbluth
Proceedings of SPIE 1989