• (impact factor – 0.5282) A. Walczak, E. Nowinowski-Kruszelnicki, L.R. Jaroszewicz, R. Wal ?Edge detection with liquid crystal polarizing filter? Mol. Cryst. and Liq. Crystal., 413, (2004), 407-415,
•  A. Kieżun, L.R. Jaroszewicz, W. Borys ?Application of the prism-coupling method in investigation of properties of the liquid-crystalline planar waveguides?, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments III, 26-30.05.2004, Wilga, Poland, Proc. of SPIE, 5775, (2004), 633-635
• A. Walczak, E. Nowinowski-Kruszelnicki, L. R. Jaroszewicz, P. Marciniak ?Design of the tuned transmission in Fabry-Perot filter?, Journal Optoelectronics, Instrumentation and Data Processing, 39, 5, (2003), 58-64,
• (impact factor – 1.0440) A.Walczak, E. Nowinowski-Kruszelnicki, L.R. Jaroszewicz, P. Marciniak, ?Tuned liquid crystalline interferometer analysis by means of generalized Berreman matrix?, Opto-Electron. Rev. 10 (1), (2002), 69-73,
• A. Walczak, E. Nowinowski-Kruszelnicki, L. R. Jaroszewicz, ?In-line Liquid Crystalline Polarization Transformer?, 19^th IEEE Instrumentation and Measurement Technology Conference IMTC/2002, 21-23.05.2002, Anchorage, USA, (2002), 981-984,
• A. Walczak, E. Nowinowski-Kruszelnicki, P. Marciniak, L.R. Jaroszewicz ?Multiresolution signal processing in liquid crystals devices?, Conference on Liquid Crystal, 7-12.09.2001, Zakopane, Poland, Proc. of SPIE, 4759, (2002), 432-437,
• A. Walczak, E. Nowinowski-Kruszelnicki, , L.R. Jaroszewicz, P. Marciniak “Tuned liquid crystaline interferometer analysis by means of generalized Berreman matrix?, Conference on Liquid Crystal, 7-12.09.2001, Zakopane, Poland, Proc. of SPIE, 4759, (2002), 384-389,
• A. Walczak, E. Nowinowski-Kruszelnicki, L.R. Jaroszewicz, P. Marciniak ?Tuned Fabry-Perot interferometer? 7^th International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, 9-13.09.2002, Nowosybirsk, Russia, Proc. of SPIE, 4900, (2002),  901-907.

• S.J. Kłosowicz, L. R. Jaroszewicz, R. Dąbrowski, E. Nowinowski-Kruszelnicki, A.Walczak, “Liquid crystal optical devices for light beam modulation and processing”, Biuletyn WAT,  XLVIII, 4, (1999), 75-86,
• A. Kieżun, L.R. Jaroszewicz, A. Walczak, E. Nowinowski-Kruszelnicki,”A direct measurement of refractive index profile in liquid crystal planar waveguides” Interferometry’99 Application, 20-23.09.99, Pułtusk, Poland, Proc. of SPIE, 3745, (1999),  92-98 ,
• (impact factor – 0.5282) A. Walczak, A. Kieżun, E. Nowinowski-Kruszelnicki, L.R. Jaroszewicz “New approach for a direct measurement of refractive index profile in liquid-crystalline layer”, Mol. Cryst. Liq. Cryst., 321, (1998),  430-436,
• A. Walczak, E. Nowinowski-Kruszelnicki, A. Kieżun, L.R. Jaroszewicz “Constraints for prism coupler method in lc waveguide investigations”, OLC’97, Heppenheim, RFN, 8-12.09.97, Proc.  47
• E. Nowinowski-Kruszelnicki, A.Walczak, A. Kieżun, L.R. Jaroszewicz “Investigation on light transmission losses in liquid crystal waveguides” European Conference on Liquid Crystal. Science and Technology, 3-8.03.97, Zakopane, Poland, Proc. of SPIE, 3318, (1997),  410-413,
• A. Walczak, A. Kieżun, E. Nowinowski-Kruszelnicki, L.R. Jaroszewicz  “Application of planar technique to investigation of liquid crystal”- Electron. and Telecom. Quart., 42, 3 (1996), 335-342

Patents:

• R.S. Dąbrowski, J. Dziaduszek, K. Garbat, J. Urban, J. Parka, L.R. Jaroszewicz, ?Nematyczne medium ciekłokrystaliczne dla urządzeń fotonicznych adresowanych dwoma częstotliwościami pola elektrycznego?, Pat. Appl. P 391 749, 05-07-2010