Agata Kotulska’s engineering and master’s thesis was carried out in the Fiber Optics Group, and concerned the theoretical and experimental investigation of the properties of transmission parameters of optical fibers.
As a continuation of her scientific work, Ms. Agata Kotulska carried out research in the field of optical spectroscopy, at the Institute of Low Temperature and Structure Research of the Polish Academy of Sciences in Wrocław.
Ms. Agata Kotulska’s doctoral thesis, whose supervisor was Prof. Artur Bednarkiewicz, concerned the luminescence properties of nanocrystals doped with lanthanide ions. The goal of the conducted research was to understand the relationship between the composition and compositional architecture with the functionality of such nanoparticles for modern applications of luminescent labels. The thematic scope of dissertation included the characterization of the properties of Förster Resonance Energy Transfer (FRET) and Photon Avalanche (PA) phenomena. Ms. Kotulska conduct experiments related to the aforementioned phenomena, including measurements of emission spectra and luminescence lifetimes, as well as providing physical models and analysis of the spectroscopic processes studied.
Currently, Dr. Kotulska is employed in the Optical Physics and Biophotonics group (Optical Imaging team) at ICTER as a Postdoctoral Fellow.
In her free time from research, Dr. Agata Kotulska enjoys hiking in the mountains.
- M. Misiak, O. Pavlosiuk, M. Szalkowski, A. M. Kotulska, K. A. Ledwa, A. Bednarkiewicz, “On the role of Gd3+ ions in enhancement of UV emission from Yb3+-Tm3+ up-converting LiYF4 nanocrystals”, Nanotechnology. (2023).
- A. Pilch-Wróbel, K. Ledwa, A. M. Kotulska, A. Bednarkiewicz, “The influence of Ce3+ codoping on upconversion in nanocrystalline NaYF4:Yb3+,Tm3+”, Journal of Luminescence, 119116 (2022).
- A. M. Kotulska, A. Pilch-Wrobel, S. Lahtinen, T. Soukka, , A. Bednarkiewicz, “Upconversion FRET quantitation: the role of donor photoexcitation mode and compositional architecture on the decay and intensity based responses”, Light: Science & Applications 11, 256 (2022).
- A. Pilch-Wrobel‡, A. M. Kotulska‡, S. Lahtinen, T. Soukka, A. Bednarkiewicz, “Engineering the Compositional the Architecture of Core‐Shell Upconverting Lanthanide‐Doped Nanoparticles for Optimal Luminescent Donor in Resonance Energy Transfer: The Effects of Energy Migration and Storage”, Small, 2200464 (2022).
- C. Lee, E. Z. Xu, Y. Liu, A. Teitelboim, K. Yao, A. Fernandez-Bravo, A. M. Kotulska, S. H. Nam, Y. D. Suh, A. Bednarkiewicz, B. E. Cohen, E. M. Chan, P. J. Schuck, “Giant Nonlinear Optical Responses from Photon-Avalanching Nanoparticles”. Nature 589, 230-235 (2021).
- A. M. Kotulska, „Försterowski Rezonansowy Transfer Energii (FRET) – podstawy fizyczne i zastosowania”, Postępy Fizyki 72 (1), 8 (2021).
- K. Prorok, M. Olk, M. Skowicki, A. Kowalczyk, A. M. Kotulska, T. Lipiński, A. Bednarkiewicz, “Near-infrared excited luminescence and in vitro imaging of HeLa cells by using Mn2+ enhanced Tb3+ and Yb3+ cooperative upconversion in NaYF4 nanocrystals”, Nanoscale Advances, 1, 3463-3473 (2019).
- A. Bednarkiewicz, E. M-Y. Chan, A. M. Kotulska, L. Marciniak, K. Prorok „Photon avalanche in lanthanide doped nanoparticles for biomedical applications: super-resolution imaging”, Nanoscale Horizons, 4, 881-889 (2019).
- A. M. Kotulska, K. Prorok, A. Bednarkiewicz, “Spectral properties of Tm3+ doped NaYF4 up-converting nanoparticles under single and double photoexcitation wavelengths”, Methods and Applications in Fluorescence, 7, 034001 (2019).
Two-Photon Excited-Fluorescence Scanning Laser Ophthalmoscope (TPEF-SLO)
The ability to noninvasively access metabolic processes during the visual cycle is crucial for developing therapies against retinal degenerative diseases. We have developed a protocol for obtaining in vivo two-photon excited fluorescence images of the fundus in the human eye. The visual cycle is a series of chemical transformations during which various fluorescent intermediates are […]
Vision allows for receiving stimuli from the surrounding world through electromagnetic waves from 400 to 780 nm, called visible light. It begins when a photon of such light is absorbed by the visual pigment of the photoreceptor in the light-sensitive part of the eye – the retina. Absorption of a photon initiates a series of […]