On May 21, 2025, another edition of the Environmental Photonics Seminars will take place, organized by the Faculty of Physics, University of Warsaw, in cooperation with the Polish Chapter of the IEEE Photonics Society (Institute of Electrical and Electronic Engineers) and the Polish Photonics Technology Platform (PPTF). The event is addressed to scientists, students, and industry representatives. During the seminar, attendees will have the opportunity to learn about the latest achievements in the field of photonics.
The guest of the seminar will be Dr. hab. Adam Marek Wojciechowski from the Faculty of Physics, Astronomy and Applied Computer Science of the Jagiellonian University, who will deliver a lecture entitled "Optical Fibers with Diamonds for Quantum Technologies."

The seminars, organized by the Faculty of Physics, University of Warsaw, in cooperation with the Polish Chapter of the IEEE Photonics Society (Institute of Electrical and Electronic Engineers) and the Polish Photonics Technology Platform (PPTF), are addressed to scientists, students, and industry representatives. The events will take place monthly on Wednesdays. Each seminar will last approximately 1.5 hours, during which attendees will have the opportunity to learn about the latest achievements in photonics presented by experts in a given research field. The event will include a lecture delivered by a high-class specialist in photonics (45 minutes). After the lecture, a networking session (30 minutes) will be held, allowing participants to meet and freely discuss over pizza.

The seminar will take place on May 21, 2025, at 3:15 PM, in Room B 2.38 at the Faculty of Physics, University of Warsaw.
The guest of the seminar will be Dr. hab. Adam Marek Wojciechowski from the Faculty of Physics, Astronomy and Applied Computer Science of the Jagiellonian University, who will deliver a lecture entitled "Optical Fibers with Diamonds for Quantum Technologies."

Color centers are defects in the crystal structure that may exhibit properties significantly different from those of the host material. In recent years, color centers in diamond have gained particular interest among researchers. Among the hundreds of known types, nitrogen-vacancy (NV) centers have become the most popular. They can be regarded as "quasi-atoms" trapped in the transparent crystal lattice of diamond, enabling their long-term observation and exceptionally precise optical measurements. NV centers are used as highly sensitive sensors for magnetic and electric field measurements, as fluorescent markers in biological imaging, and as optically initialized and readout qubits in quantum information processing systems.

– In my presentation, I will introduce the basics of the physics of NV centers and various possibilities for their application in sensing, with particular emphasis on the technique of optically detected magnetic resonance (ODMR). I will focus on applications in magnetometry and perspectives for high spatial resolution magnetic field imaging. Special attention will be given to the role of optical fibers in integrating NV technology with compact optical platforms. I will present our research on the development of novel optical fibers doped with nanodiamonds containing NV centers, which can serve as distributed sensors. I will also present our research on a magnetic endoscope based on an imaging fiber bundle, enabling spatially resolved imaging of magnetic fields in hard-to-reach environments, says the speaker.

Dr. hab. Adam Marek Wojciechowski – physicist, assistant professor at the Faculty of Physics, Astronomy and Applied Computer Science of the Jagiellonian University, specializing in photonics, ultracold atom physics, and research on nitrogen-vacancy (NV) color centers in diamond. His work focuses on exploiting the quantum properties of these systems for precision metrology and imaging, including biological applications. He is the author of numerous scientific publications and actively collaborates with research centers in Poland and abroad.

The seminar can also be joined via the Zoom platform.
Link to the meeting