Selected Journal Papers:
1. R.T. Kester, T.Tkaczyk, M.R. Descour, T.Christenson, and R.Richards-Kortum, " High numerical aperture microendoscope objective for a fiber confocal reflectance microscope," Opt. Express 15, 2409-2420 (2007)
2. H. Luo, T. Tkaczyk, E. Dereniak, K. Oka, and R. Sampson, "High birefringence of the yttrium vanadate crystal in the middle wavelength infrared," Opt. Lett. 31, 616-618 (2006)
3. J. Rogers, T. Tkaczyk, M. Descour, A. Kärkkäinen, and R. Richards-Kortum, "Removal of ghost images by using tilted element optical systems with polynomial surfaces for aberration compensation," Opt. Lett. 31, 504-506 (2006)
4. H. Luo, K. Oka, N. Hagen, T. Tkaczyk, and E. L. Dereniak, "Modeling and optimization for a prismatic snapshot imaging polarimeter," Appl. Opt. 45, 8400-8409 (2006)
5. T.Tkaczyk, M.Rahman, V.Mack, K.Sokolov, J.D.Rogers, R.Richards-Kortum, M.R.Descour, “High Resolution Reflectance Imaging in Optically Dense Tissue Phantoms with Structured-Illumination”, Optics Express 12, 3745 (2004)
6. S. Rege, T. Tkaczyk, M. Descour, “Application of the Alvarez-Humphrey concept to the design of a miniaturized scanning microscope”, Optics Express, 12, 2574-2588 (2004)
7. J. D. Rogers, A. H. O. Kärkkäinen, T. Tkaczyk, J. T. Rantala, and M. Descour, "Realization of refractive microoptics through grayscale lithographic patterning of photosensitive hybrid glass," Optics Express 12, 1294-1303 (2004),
8. T.Tkaczyk, R.Jóźwicki, “Full field heterodyne interferometer for shape measurement - experimental characteristics of the system”, Optical Engineering, vol. 42, no. 8, p. 2391-2399, 2003,
9. K.W.Gossage, T.Tkaczyk, J.J.Rodriguez, J.K.Barton, “Texture Analysis of Optical Coherence Tomography Images: Feasibility for Tissue Classification”, Journal of Biomedical Optics, vol. 8, no. 3, p. 570-575, 2003.
10. T.Tkaczyk; R.Jozwicki, “Full-field, time-dependent heterodyne interferometer for shape measurement: theory and experiment”, SPIE Proc., vol. 4190; p.123-32, 2001.

Selected Invited Talks:
1. T.Tkaczyk, “Confocal Microendoscopy”, at Advances in Optics for Biotechnology, Medicine and Surgery, ECI International Conference, Naples, FL, USA, June 2007.
2. T.Tkaczyk, “Modern technologies to build inexpensive, high performance micro-endoscopes for cellular imaging”, at Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VIII, SPIE BIOS Conference, San Jose, CA, USA, January 2007.
3. T. Tkaczyk, “Miniaturized, disposable microscopy probes for early cancer detection”, Optical Imaging 2006, Fifth Inter-Institute Workshop on Optical Diagnostic Imaging from Bench to Bedside, National Institutes of Health, Bethesda, Maryland USA, September 2006
4. T.Tkaczyk, “Current trends in optical detection of early cancer stages”, 5th European Syphosium on Biomedical Engineering, Patras, Greece, July 2006.
5. T.Tkaczyk, “Multi-modal miniaturized microscope: successful merger of optical, MEMS, and electronic technologies”, Optomechatronic Technologies (ISOT 2005), Sapporo (Japan), December 2005.