Korec-Kosturek, Joanna, Monika Halendy, Sławomir Ertman, Konrad Osak, Konrad Pogorzelec, and Piotr Lesiak. “3D-Printed On-Fiber Fabry-Pérot Resonator for Refractive Index Measurements”. Photonics Letters of Poland 17, no. 4 (December 31, 2025): 91–95. Accessed January 14, 2026. http://photonics.pl/PLP/index.php/letters/article/view/17-30.