J. Jahns, M. Gruber, M. Jarczynski, "Optische Verbindungstechnik mit planar-integrierter Freiraumoptik (PIFSO)", Workshop am Heinrich-Hertz-Institut, Berlin, 15.01.2004

J. Jahns, M. Gruber, M. Jarczynski, "Planar integration of free-space optics" (invited), ESA Microphotonics Technology Day, Noordwijk, NL, 26.03.2004.

H. Knuppertz, J. Jahns, A. W. Lohmann, "Das Montgomery-Interferometer als Zeitfilter", Kolloquium am Max-Born-Institut, Berlin-Adlerhof, 06.04.2004.

H. Knuppertz, J. Jahns, A.W. Lohmann, G. Mínguez-Vega, "The Montgomery interferometer as a programmable filter", EOS Top. Meet. Optics in Computing 2004, Engelberg, Schweiz, 21.-23.04.2004.

G. Mínguez-Vega, M. Gruber, J. Jahns, "Planar-integrated achromatic optical Fourier transformer", EOS Top. Meet. Optics in Computing 2004, Engelberg, Schweiz, 21.-23.04.2004.

M. Jarczynski, J. Jahns, "Planar free-space optical interface module based on a hybrid imaging system", EOS Top. Meet. Optics in Computing 2004, Engelberg, Schweiz, 21.-23.04.2004.

M. Gruber, M. Jarczynski, J. Jahns, "Planar-integrated free-space optical interconnects: toward real-world applications" (invited), SPIE Photonics Europe, Strasbourg, France, 27.04.2004.

Q. Cao, J. Jahns, "Modified composite high-NA Fresnel zone plate", 105. Jahrestagung der DGaO, Bad Kreuznach, 01.-05.06.2004.

H. Knuppertz, J. Jahns, A. W. Lohmann, "Das Montgomery-Interferometer als optisches Zeitfilter", 105. Jahrestagung der DGaO, Bad Kreuznach, 01.-05.06.2004.

M. Gruber, G. Mínguez-Vega, J. Jahns, "Achromatisierung planar-integrierter optischer Systeme mit diffraktiven optischen Elementen", 105. Jahrestagung der DGaO, Bad Kreuznach, 01.-05.06.2004.

J. Jahns, H. Knuppertz, A. W. Lohmann, G. Mínguez-Vega, "Optical filter structures based on the self-imaging phenomenon" (invited), ICTON 2004, Wroclaw, Poland, 04.-08.07.2004.

M. Jarczynski, J. Jahns, "Planar integrated free-space optics for optical interconnects and fan-out/in operations", Optical Science and Technology, SPIE Proceedings 5556-02 (Invited Paper), Denver, CO, 02.-06.08.2004.

Q. Cao, J. Jahns, "Modified Fresnel zone plates with relatively high efficiencies", MOC 2004, Jena, 01.-03.09.2004.

A. Lohmann, J. Jahns, H. Knuppertz, "An ultrafast optical tapped delay-line", MOC 2004, Jena, 01.-03.09.2004.

Qing Cao and Jürgen Jahns, "Combination of focusing and apodization in single multilevel diffractive lens", Diffractive Optics and Micro-Optics topical meeting of OSA, Rochester, USA, 09.-14.10.2004.

Qing Cao and Jürgen Jahns, "Equivalent pupil functions for modified Fresnel zone plates", OSA Annual meeting, Rochester, USA, 10.-15.10.2004.

M. Gruber, A.C. Wei, R. Heming, J. Jahns, "Optimal use of analog and binary litho-graphy for planar-integrated free-space optics fabrication", OSA Annual Meeting 2004, Rochester, USA, 10.-15.10.2004.